EPAM Systems Annual Report 2015

Plain-text annual report

UNITED STATESSECURITIES AND EXCHANGE COMMISSIONWashington, D.C. 20549 FORM 10-Kxx ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934For the Fiscal Year Ended December 31, 2015OR¨¨ TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934Commission file number: 001-35418EPAM SYSTEMS, INC.(Exact Name of Registrant as Specified in its Charter)Delaware 223536104(State or other jurisdiction ofincorporation or organization) (I.R.S. EmployerIdentification No.)EPAM Systems, Inc.41 University Drive,Suite 202Newtown, Pennsylvania 18940(Address of principal executive offices, including zip code)267-759-9000(Registrant’s telephone number, including area code)Securities registered pursuant to Section 12(b) of the Act:Title of Each Class Name of Each Exchange on Which RegisteredCommon Stock, par value $0.001 per share New York Stock ExchangeSecurities registered pursuant to Section 12(g) of the Act: None. Indicate by check mark if the registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes x No ¨ Indicate by check mark if the registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Act. Yes ¨ No xIndicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes x No ¨Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, if any, every Interactive Data File required to be submitted and postedpursuant to Rule 405 of Regulation S-T during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files). Yes x No ¨Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein and will not be contained, to the best of registrant’sknowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. xIndicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company. See the definitions of “largeaccelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act. (Check one): Large accelerated filer x Accelerated filer ¨ Non-accelerated filer ¨ (Do not check if a smaller reporting company) Smaller reporting company ¨Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes ¨ No xAs of June 30, 2015 the aggregate market value of the registrant’s common stock held by non-affiliates of the registrant was approximately $3,332 million based on the closing saleprice as reported on the New York Stock Exchange. Solely for purposes of the foregoing calculation, “affiliates” are deemed to consist of each officer and director of the registrant,and each person known to the registrant to own 10% or more of the outstanding voting power of the registrant.The number of shares of common stock, $0.001par value, of the registrant outstanding as of February 10, 2016 was 50,370,482 shares. DOCUMENTS INCORPORATED BY REFERENCEThe registrant intends to file a definitive Proxy Statement for its 2016 annual meeting of stockholders pursuant to Regulation 14A within 120 days of the end of the fiscal year endedDecember 31, 2015. Portions of the registrant’s Proxy Statement are incorporated by reference into Part III of this Form 10-K. With the exception of the portions of the ProxyStatement expressly incorporated by reference, such document shall not be deemed filed with this Form 10-K. EPAM SYSTEMS, INC.FORM 10-KFOR THE YEAR ENDED DECEMBER 31, 2015TABLE OF CONTENTS PagePART I2Item 1. Business2Item 1A. Risk Factors11Item 1B. Unresolved Staff Comments24Item 2. Properties24Item 3. Legal Proceedings25Item 4. Mine Safety Disclosures25PART II25Item 5. Market for Registrant's Common Equity, Related Stockholder Matters and Issuer Purchases of Equity Securities25Item 6. Selected Financial Data28Item 7. Management's Discussion and Analysis of Financial Condition and Results of Operations29Item 7A. Quantitative and Qualitative Disclosures About Market Risk47Item 8. Financial Statements and Supplementary Data49Item 9. Changes in and Disagreements with Accountants on Accounting and Financial Disclosure49Item 9A. Controls and Procedures49Item 9B. Other Information50PART III51Item 10. Directors, Executive Officers and Corporate Governance51Item 11. Executive Compensation51Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters51Item 13. Certain Relationships and Related Transactions, and Director Independence51Item 14. Principal Accountant Fees and Services51PART IV52Item 15. Exhibits, Financial Statement Schedules52SIGNATURES55INDEX TO CONSOLIDATED FINANCIAL STATEMENTSF-1In this annual report, “EPAM,” “EPAM Systems, Inc.,” the “Company,” “we,” “us” and “our” refer to EPAM Systems, Inc. and its consolidatedsubsidiaries.“EPAM” is a trademark of EPAM Systems, Inc. “CMMI” is a trademark of the Software Engineering Institute of Carnegie Mellon University. “ISO9001:2000” and “ISO 27001:2005” are trademarks of the International Organization for Standardization. All other trademarks and servicemarks used hereinare the property of their respective owners.Unless otherwise indicated, information contained in this annual report concerning our industry and the markets in which we operate, including ourgeneral expectations and market position, market opportunity and market share, is based on information from various sources (including industrypublications, surveys and forecasts and our internal research), on assumptions that we have made, which we believe are reasonable, based on such data andother similar sources and on our knowledge of the markets for our services. The projections, assumptions and estimates of our future performance and thefuture performance of the industry in which we operate, are subject to a high degree of uncertainty and risk due to a variety of factors, including thosedescribed under “Item 1A. Risk Factors” and elsewhere in this annual report. These and other factors could cause results to differ materially from thoseexpressed in the estimates included in this annual report.iSPECIAL NOTE REGARDING FORWARD-LOOKING STATEMENTSThis annual report on Form 10-K contains estimates and forward-looking statements, principally in “Item 1. Business,” “Item 1A. Risk Factors” and“Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations.” Our estimates and forward-looking statements are mainlybased on our current expectations and estimates of future events and trends, which affect or may affect our businesses and operations. Although we believethat these estimates and forward-looking statements are based upon reasonable assumptions, they are subject to several risks and uncertainties and are madein light of information currently available to us. Important factors, in addition to the factors described in this annual report, may adversely affect our results asindicated in forward-looking statements. You should read this annual report and the documents that we have filed as exhibits hereto completely and with theunderstanding that our actual future results may be materially different from what we expect.The words “may,” “will,” “should,” “could,” “expect,” “plan,” “anticipate,” “believe,” “estimate,” “predict,” “intend,” “potential,” “might,” “would,”“continue” or the negative of these terms or other comparable terminology and similar words are intended to identify estimates and forward-lookingstatements. Estimates and forward-looking statements speak only as of the date they were made, and, except to the extent required by law, we undertake noobligation to update, to revise or to review any estimate and/or forward-looking statement because of new information, future events or other factors.Estimates and forward-looking statements involve risks and uncertainties and are not guarantees of future performance. As a result of the risks anduncertainties described above, the estimates and forward-looking statements discussed in this annual report might not occur and our future results, level ofactivity, performance or achievements may differ materially from those expressed in these forward-looking statements due to, including, but not limited to,the factors mentioned above, and the differences may be material and adverse. Because of these uncertainties, you should not place undue reliance on theseforward-looking statements. We undertake no obligation to update or revise any forward-looking statements, whether as a result of new information, futureevents, or otherwise, except as may be required under applicable law. GEOGRAPHICAL REFERENCESWe use the terms “CIS”, “CEE” and “APAC” to describe a portion of our geographic operations and assets. CIS, which stands for the Commonwealthof Independent States, is comprised of constituents of the former U.S.S.R., including Armenia, Azerbaijan, Belarus, Georgia, Kazakhstan, Kyrgyzstan,Moldova, Russia, Tajikistan, Turkmenistan, Ukraine and Uzbekistan. CEE, which stands for Central and Eastern Europe, includes Albania, Bosnia andHerzegovina, Bulgaria, Croatia, Czech Republic, Estonia, Hungary, Latvia, Lithuania, Poland, Republic of Macedonia, Romania, Serbia, Montenegro,Slovakia, and Slovenia. APAC, which stands for Asia Pacific, includes all of Asia (including India) and Australia.1PART IItem 1. BusinessCompany BackgroundWe are a leading global provider of software product engineering, technology consulting and digital expertise to clients located around the world,primarily in North America, Europe, Asia and the CIS region. With a strong focus on innovative and scalable software solutions, and a continually evolvingmix of advanced capabilities, we leverage industry standard and custom developed technology, tools and platforms to deliver results for the most complexbusiness challenges. We focus on building long-term partnerships with clients in industries such as software and high technology, financial services, mediaand entertainment, travel and hospitality, retail, energy, life sciences, healthcare, telecommunications, and government.Since our inception in 1993, we have focused on software product development services for major independent software vendors (ISVs) andtechnology companies and refined this core competency through ongoing multi-year engagements. These companies produce advanced technology productsthat demand sophisticated software engineering talent, tools, methodologies and infrastructure. As a result, we have developed a culture of innovation,technology leadership and process excellence, which helps us maintain a strong reputation for technical proficiency and high-quality project delivery.Our work with global leaders in enterprise software platforms and emerging technology companies exposes us to strategic business challenges invarious industries, allowing us to develop vertical-specific domain expertise. Unlike custom application development tailored to specific businessrequirements, ISVs’ software products must be designed with a higher level of product configurability and operational performance to address the needs of adiverse set of end-users operating in a variety of deployment environments. This in-depth understanding of how vertically-oriented ISVs and technologycompanies solve their clients’ challenges allows us to focus and grow our business in multiple industry verticals, predominantly Financial Services, Mediaand Entertainment, and Travel and Consumer.Our historical core competency is full lifecycle software development and product engineering services including design and prototyping, productdevelopment and testing, component design and integration, product deployment, performance tuning, porting and cross-platform migration. Thisexperience created a foundation for the evolution of our other offerings, which include advanced technology software solutions, intelligent enterpriseservices and digital engagement.Our strategic acquisitions allowed us to further expand our global footprint and service offering portfolio. Our 2014 acquisitions of Netsoft Holdings,LLC, Joint Technology Development Limited, GGA Software Services, LLC and Great Fridays Ltd. expanded our capabilities in the healthcare, financialservices and digital design areas. Our 2015 acquisitions of NavigationArts, Inc and Alliance Consulting Global Holdings, Inc. enhanced our abilities indigital strategy, consulting and test automation, increasing our reach in many of our existing verticals as well as establishing our presence in India. Weexpect these strategic acquisitions will enable us to offer a broader range of services to our clients from a wider variety of locations.Our ServicesOur service offerings cover the full software product development lifecycle from digital strategy and customer experience design to enterpriseapplication platforms implementation and program management services and from complex software development services to maintenance, support, customapplication development, application testing, and infrastructure management. Our key service offerings include:Software Product Development ServicesWe provide a comprehensive set of software product development services including product research, customer experience design and prototyping,program management, component design and integration, full lifecycle software testing, product deployment and end-user customization, performancetuning, product support and maintenance, managed services, as well as porting and cross-platform migration. We focus on software products covering a widerange of business applications as well as product development for multiple mobile platforms and embedded software product services.2Table of ContentsCustom Application Development ServicesWe offer complete custom application development services to meet the requirements of businesses with sophisticated application development needsnot adequately supported by packaged applications or by existing custom solutions. Our custom application development services leverage our experiencein software product development as well as our industry expertise, prebuilt application solution frameworks and specific software product assets. Our range ofservices includes business and technical requirements analysis, user experience design, solution architecture creation and validation, development,component design and integration, quality assurance and testing, deployment, performance tuning, support and maintenance, legacy applications re-engineering/refactoring, porting and cross-platform migration and documentation.Application Testing ServicesWe maintain a dedicated group of testing and quality assurance professionals with experience across a wide range of technology platforms andindustry verticals. Our Quality Management System complies with global quality standards such as ISO 9001:2008 and we employ industry-recognized andproprietary defect tracking tools to deliver a comprehensive range of testing services. Our application testing services include: (i) software applicationtesting, including test automation tools and frameworks; (ii) testing for enterprise IT, including test management, automation, functional and non-functionaltesting, as well as defect management; and (iii) consulting services focused on helping clients improve their existing software testing and quality assurancepractices.Enterprise Application PlatformsAs a proven provider of software product development services to major ISVs, we have participated in the development of industry standardtechnology and business application platforms and their components in such specific areas as customer relationship management and sales automation,enterprise resource planning, enterprise content management, business intelligence, e-commerce, mobile, Software-as-a-Service and cloud deployment. Ourexperience in such areas allows us to offer services around Enterprise Application Platforms, which include requirements analysis and platform selection,deep and complex customization, cross-platform migration, implementation and integration, as well as support and maintenance. We use our experience,custom tools and specialized knowledge to integrate our clients’ chosen application platforms with their internal systems and processes and to create customsolutions filling the gaps in their platforms’ functionality necessary to address the needs of the clients’ users and customers.Application Maintenance and SupportWe deliver application maintenance and support services through a dedicated team of IT professionals. Our application maintenance and supportofferings meet rigorous CMMI and ISAE 3402 Type 2 requirements. Our clients benefit from our proprietary distributed project management processes andtools, which reduce the time and costs related to maintenance, enhancement and support activities. Our services include incident management, faultinvestigation diagnosis, work-around provision, application bug fixes, release management, application enhancements and third-party maintenance.Infrastructure Management ServicesGiven the increased need for tighter enterprise integration between software development, testing and maintenance with private, public and mobileinfrastructures, our service offerings also cover infrastructure management services. We have significant expertise in implementing large infrastructuremonitoring solutions, providing real-time notification and control from the low-level infrastructure up to and including applications. Our ISAE 3402 Type 2,ISO/IEC 27001:2005 and ISO 9001:2008 certifications provide our clients with third-party verification of our information security policies. Our solutionscover the full lifecycle of infrastructure management including application, database, network, server, storage and systems operations management, as well asincident notification and resolution.We also work closely with leading companies in other industries to enable our clients to better leverage technology and address simultaneouspressures of driving value for the consumer and offering a more engaging experience. Our digital strategy and experience design practice provides strategy,design, creative, and program management services for clients looking to improve their customer experience. In 2014 and 2015, we expanded our digitaldesign capabilities through strategic acquisitions in the U.K. and U.S. We also offer deep expertise across several domains including business-to-business andbusiness-to-consumer e-commerce, customer/partner self-service, employee portals, online merchandising and sales, web content management, mobilesolutions and billing.3Table of ContentsOur Vertical MarketsStrong vertical-specific knowledge, backed by extensive experience merging technology with the business processes of our clients, allows us todeliver tailored solutions to various industry verticals. We have categorized our customers into five main industry verticals and a group of emerging verticals.Financial Services. We have significant experience working with global investment banks, firms, and brokerages; commercial and retail banks, creditcard companies, depositories, corporate treasuries, pension funds, and market data providers. We assist these clients with challenges stemming from newregulations, compliance requirements, and risk management. We have established a Capital Markets Competency Center, which facilitates knowledgeexchange, education and collaboration across our organization and develops new software products, frameworks and components to further enhance ourfinancial services solutions and services.Travel and Consumer. Our capabilities span a range of platforms, applications and solutions that businesses in travel and hospitality use to serve theircustomers, capture management efficiencies, control operating expenses and grow revenues. Many of the world’s leading airlines, hotel providers and travelagencies rely on our knowledge in creating the best tools for operating and managing their business.Software and Hi-Tech. Our core competency is in providing complex software product development services to meet ISVs and technology companies’constant need for innovation and rapid time-to-market. Through our experience with many industry leaders, we have developed proprietary internalprocesses, methodologies and IT infrastructure. Our services span the complete software development lifecycle for software product development using ourcomprehensive development methodologies, testing and performance tuning, deployment and maintenance and support.Media and Entertainment. We have established long-term relationships with leading media and entertainment companies, which enable us to bringsustainable value creation and enhanced return-on-content for organizations within this vertical. Our solutions help clients develop new revenue sources,accelerate the creation, collection, packaging and management of content and reach broader audiences. We serve clients in a range of media sub-sectors,including entertainment media, news providers, broadcasting companies, financial information providers, content distributors and advertising networks. OurBusiness Information Competency Center enables us to provide our clients with solutions that help them overcome challenges related to operating legacysystems, manage varied content formats, rationalize their online assets and lower their cost of delivery. In addition, we provide knowledge discovery platformservices through our InfoNgen business, which combines custom taxonomy development with web crawling, internal file and e-mail classification, newsletterand feed publication and content trend analysis.Life Sciences and Healthcare. We help our customers in the Life Sciences and Healthcare industry address ever changing market conditions andregulatory environments. Our professionals deliver end-to-end experience that includes strategy, architecture, build and managed services to clients rangingfrom the traditional healthcare providers to innovative startups. We work with global Life Sciences companies to deliver sophisticated scientific informaticsand innovative enterprise technology solutions. We offer a combination of deep scientific and mathematical knowledge providing global coverage for broad-based initiatives. Our solutions enable clients to speed research, discovery, and time-to-market while improving collaboration, knowledge management, andoperational excellence.We also serve the diverse technology needs of clients in the energy, telecommunications, automotive, manufacturing, insurance, retail industries andthe government. These industries represent our Emerging verticals.Our revenues by vertical for the periods presented are as follows: Year Ended December 31, 2015 2014 2013Financial Services$248,526 27.2% $215,425 29.5% $156,340 28.2%Travel and Consumer215,303 23.6 157,756 21.6 117,248 21.1Software & Hi-Tech192,989 21.1 157,944 21.6 134,970 24.3Media & Entertainment120,616 13.2 91,726 12.6 75,677 13.6Life Sciences and Healthcare73,327 8.0 42,428 5.8 14,079 2.5Emerging Verticals53,856 5.9 56,338 7.7 49,177 8.9Reimbursable expenses and other revenues9,511 1.0 8,410 1.2 7,626 1.4Revenues$914,128 100.0% $730,027 100.0% $555,117 100.0%4Table of ContentsClientsOur clients primarily consist of Forbes Global 2000 corporations located in North America, Europe, Asia and the CIS. We maintain a geographicallydiverse client base with 53.1% of our 2015 revenues from clients located in North America, 38.6% from clients in Europe, 4.7% from clients in the CIS and2.6% from our clients in APAC. We typically enter into master services agreements with our clients, which provide a framework for services that is thensupplemented by statements of work, which specify the particulars of each individual engagement, including the services to be performed, pricing terms andperformance criteria.Our focus on delivering quality to our clients is reflected by an average of 95.1% and 84.3% of our revenues in 2015 coming from clients that had usedour services for at least one and two years, respectively. In addition, we have significantly grown the size of existing accounts as majority of our top clientmix remains consistent over the years. The annual revenue from our top five clients increased from $65.9 million in 2010 to $298.1 million in 2015 and theannual revenue from our top ten clients increased from $94.5 million in 2010 to $400.3 million in 2015.During 2015 and 2014, one customer, UBS AG, accounted for over 10% of our revenues. No customer accounted for over 10% of our revenues in 2013.The following table presents the percentage of our revenues by client location: % of Revenues for Year Ended December 31, Client location2015 2014 2013North America53.1% 50.4% 50.8%Europe38.6 39.0 36.1CIS4.7 7.6 11.7APAC2.6 1.8 —Reimbursable expenses and other revenues1.0 1.2 1.4Revenues100.0% 100.0% 100.0%Revenues by client location above differ from our segment information. Our operations consist of four reportable segments: North America, Europe,Russia and Other. This determination is based on the unique business practices and market specifics of each region and that each region engages in businessactivities from which it earns revenues and incurs expenses. Our reportable segments are based on managerial responsibility for a particular client. Becausemanagerial responsibility for a particular client relationship generally correlates with the client’s geographic location, there is a high degree of similaritybetween client locations and the geographic boundaries of our reportable segments. In some specific cases, however, managerial responsibility for a particularclient is assigned to a management team in another region, usually based on the strength of the relationship between client executives and particularmembers of our senior management team. In such a case, the client’s activity would be reported through the management team’s reportable segment.Particularly, our acquired clients in the APAC region are reported as part of the Europe segment based on the managerial responsibility for those clients. Thefollowing table presents the percentage of our revenues by reportable segment: % of Segment Revenues for Year Ended December 31, Segment2015 2014 2013North America51.5% 51.3% 51.3%Europe43.8 41.0 36.8Russia4.2 6.9 10.0Other0.5 0.8 1.9Segment Revenues100.0% 100.0% 100.0%See “Item 7. Management’s Discussion and Analysis of Financial Condition and Results of Operations” in Part II of this annual report for additionalinformation regarding segments.5Table of ContentsThe following table shows the distribution of our clients by revenues for the periods presented: Year Ended December 31,Revenues Greater Than or Equal To2015 2014 2013$0.1 million365 306 263$0.5 million211 181 147$1 million136 116 95$5 million33 24 22$10 million14 12 12$20 million7 6 4See Note 17 in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding total assets, operatingresults and other financial information regarding our operating segments.Sales and MarketingOur sales and marketing efforts support our business strategy to increase our revenues from new and existing clients through our senior management,sales and business development staff, account managers, and technical specialists. We maintain a dedicated sales force and a marketing team, whichcoordinates corporate-level branding efforts such as sponsorship of programming competitions to participation in and hosting of industry conferences andevents.Given our focus on providing technical solutions to our clients’ complex challenges, our IT professionals play an integral role in engaging with clientson potential business opportunities. Our account managers maintain direct client relationships and are tasked with identifying new business opportunitiesand responding to requests-for-proposals, or RFPs. Account managers typically engage technical and other specialists when pursuing opportunities. Thissales model has been effective in promoting repeated business and growth from within our existing client base.In addition to effective client management, we believe that our reputation as a premium provider of software engineering solutions and informationtechnology services drives additional business from inbound requests, referrals and RFPs. We enjoy published recognition from third-party industryobservers, such as Forrester Research, Forbes Research, Everest Group, Zinnov, CIO Magazine, Information Week, and Software Magazine.Human CapitalAttracting and retaining employees is a key factor in our ability to grow our revenues and meet our clients’ needs. We have dedicated full-timeemployees that oversee all aspects of our human capital management process. We effectively plan our short-term and long-term recruitment needs and deploythe necessary personnel and processes to optimize utilization and to quickly satisfy the demands of our clients. As our business grows, we also focus onhiring and retaining individuals with appropriate skills to fill our executive, finance, legal, HR and other key management positions.At December 31, 2015, 2014 and 2013, we had a total of 18,354, 14,109 and 11,056 employees, respectively. Of these employees, as of December 31,2015, 2014 and 2013, respectively, 16,078, 11,824 and 9,340 were revenue generating IT professionals.In our competitive industry, the ability to hire and retain highly-skilled information technology professionals is critical to our success. We believe thequality of our employees serves as a key point of differentiation in how we deliver a superior value proposition to our clients. To attract, retain and motivateour IT professionals, we offer a challenging work environment, ongoing skills development initiatives, attractive career advancement and promotionopportunities thus providing an environment and culture that rewards entrepreneurial initiative and performance.Historically, we have developed our base of IT professionals by hiring highly-qualified, experienced IT professionals from the CIS and CEE region andby recruiting students from leading universities there. The quality and academic prestige of the CIS and CEE educational system is renowned worldwide. Wehave strong relationships with the leading institutions in these geographies, such as the Belarusian State University, Belarusian State University ofInformatics and Radioelectronics, the Saint Petersburg State University of Information Technologies, Mechanics and Optics, the Moscow State University,the Moscow Institute of Physics & Technology, the Moscow State University of Instrument Engineering and Computer Sciences and the National TechnicalUniversity of Ukraine. The participants from these universities are frequent and consistent winners in the ACM International Collegiate Programming Contest(“ICPC”), the oldest, largest, and most prestigious programming contest in6Table of Contentsthe world. In the 2015 ACM International Collegiate Programming Contest, the two top winning spots were awarded to the CIS schools and a highly regardedBelarusian university finished in the top 15.We have established EPAM delivery centers near many of these university campuses. Our ongoing involvement with these universities includessupporting EPAM-branded research labs, developing training courses, providing teaching equipment, actively supporting curriculum development andengaging students to identify their talents and interests. Our relationships with these technical institutions provide us access to a highly-qualified talent poolof programmers, and allow us to consistently attract highly-skilled students from these institutions. We also conduct lateral hiring through a dedicated ITprofessional talent acquisition team whose objective is to locate and attract qualified and experienced IT professionals within the region and other EPAMlocations.We believe that we maintain a good working relationship with our employees and our employees have not entered into any collective bargainingagreements or engaged in any labor disputes.7Table of ContentsOur Delivery ModelWe have delivery centers located in Belarus, Ukraine, Russia, Hungary, Kazakhstan, Bulgaria, Armenia, Poland, China, Mexico, Austria, CzechRepublic and India. We have client management locations in the United States, Canada, United Kingdom, Germany, Sweden, Switzerland, Netherlands,Russia, Kazakhstan, Singapore, Hong Kong and Australia. We believe the development of a robust global delivery model creates a key competitiveadvantage, enabling us to better understand and meet our clients’ diverse needs and provide a compelling value proposition. We continuously grow ourdelivery platform both organically and through acquired delivery centers and client management locations. Our total headcount of revenue generatingpersonnel was 16,078 as of December 31, 2015.Our primary delivery centers are located in Belarus, where we have 5,207 IT professionals as of December 31, 2015. The majority of these ITprofessionals are located in Minsk, the capital of Belarus, which is well-positioned to serve as a prime IT outsourcing destination given its strong industrialbase, good educational infrastructure and legacy as the center of computer science for the former Soviet Union. Furthermore, the IT industry in Belarus hasbeen strongly supported by the government, which has taken steps to encourage investment in the IT sector through long-term tax incentives.Our delivery centers in Ukraine have 3,734 IT professionals as of December 31, 2015. Our delivery centers in Russia have 2,235 IT professionals as ofDecember 31, 2015. Our locations in Ukraine and Russia offer many of the same benefits as Belarus, including educational infrastructure, availability ofqualified software engineers and government support of the IT industry. We believe our locations in Ukraine and Russia, along with our delivery centers inBelarus, offer a strong and diversified delivery platform across Europe. Our business has not been materially affected by the political and economicuncertainty in Russian or Ukraine to date.Our other significant delivery centers are in the United States with 1,016 IT professionals, Hungary with 1,151 IT professionals and India with 1,031 ITprofessionals as of December 31, 2015. These delivery centers are located strategically to serve clients in North America, Europe and Asia. The deliverycenter in India has been established through our business combination with Alliance Consulting Global Holdings, Inc.Training and DevelopmentWe dedicate significant resources to the training and development of our IT professionals. We believe in the importance of supporting educationalinitiatives and we sponsor employees’ participation in internal and external training and certifications. Furthermore, we actively pursue partner engagementswith technical institutions in CEE.We provide training, continuing education and career development programs for both entry-level and experienced IT professionals. Entry-level ITprofessionals undergo a rigorous training program that consists of approximately three to six months of classroom training, as well as numerous hours ofhands-on training through actual engagements. This comprehensive program results in employees who are highly proficient and possess deep technicalexpertise that enables them to immediately serve our clients’ needs. For our mid-level and senior IT professionals, we offer continuing education programsaimed at helping them advance in their careers. We also provide mentoring opportunities, management and soft skills training, intensive workshops andmanagement and technical advancement programs. We are committed to systematically identifying and nurturing the development of middle and seniormanagement through formal leadership training, evaluation, development and promotion.Quality and Process ManagementOver the years we have invested significant resources into developing a proprietary suite of internal applications and tools to manage all aspects of ourdelivery process. These applications and tools are effective in reducing costs and security risks, while providing control and visibility across all projectlifecycle stages both internally and to our clients. In addition, these applications, tools, methodologies and infrastructure allow us to seamlessly deliverservices and solutions to global clients, further strengthening our relationships with them.Our proprietary ISO 9001:2008 and CMMI-certified Quality Management System has been documented, implemented and maintained to ensure thetimely delivery of software development services to our clients. We have also developed sophisticated project management techniques facilitated throughour Project Management Center, a web-based collaborative environment for software development, which we consider critical to meeting or exceeding theservice levels required by our clients.8Table of ContentsOur Quality Management System ensures that we provide timely delivery of software development services to enhance client satisfaction by enabling:•objective valuation of the performed process, work products and services against the client’s process descriptions, standards and procedures;•identification, documentation and timely resolution of noncompliance issues;•feedback to the client’s project staff and managers on the results of quality assurance activities;•monitoring and improvement of the software development process to ensure adopted standards and procedures are implemented and flaws aredetected and resolved in a timely manner; and•execution of planned and systematic problem prevention activities.Our proprietary Project Management Center supports our software development delivery model. Our Project Management Center is effective inreducing risks and providing control and visibility across all project lifecycle stages based on the following features:•multi-site, multi-project capabilities;•activity-based software development lifecycle, which fully tracks the software development activities through the project documentation;•project, role-based access control, which can be available to us, clients and third parties;•fully configurable workflow engine with built-in notification and messaging;•extensive reporting capabilities and tracking of key performance indicators; and•integration with Microsoft Project and Outlook.The transparency and visibility into software development project deliverables, resource management, team messaging and project-related documentsand files provided by our Project Management Center promotes collaboration and strengthens our relationships with our clients. Improved traceabilityenables significant time savings and cost reductions for business users and IT management during change management for the software developmentlifecycle. The combination of our Project Management Center with our other proprietary internal applications enhances our offering by reducing errors,increasing quality, effectiveness and oversight, and improving maintenance time.Based on our analysis of publicly available information of IT services providers, we are the only ISAE 3402 Type 2 certified IT services provider withmultiple delivery centers in CEE. This certification is a widely recognized auditing standard developed by the American Institute of Certified PublicAccountants, or AICPA, and it serves as additional assurance to our clients regarding the control environment and the security of their sensitive data.Furthermore, this is an important certification for firms in data and information-intensive industries, as well as any organization that is subject to the internalcontrols certification requirements of the Sarbanes-Oxley Act of 2002, as amended, or the Sarbanes-Oxley Act. Our ISAE 3402 Type 2 certification, inaddition to our multiple ISO/IEC 27001:2005 and ISO 9001:2008 attestations, underscores our focus on establishing stringent security standards and internalcontrols.CompetitionThe markets in which we compete are changing rapidly and we face competition from both global technology solutions providers as well as thosebased primarily in specific geographies with lower cost labor such as CEE, India and China. We believe that the principal competitive factors in our businessinclude technical expertise and industry knowledge, end-to-end solution offerings, reputation and track record for high-quality and on-time delivery of work,effective employee recruiting, training and retention, responsiveness to clients’ business needs, scale, financial stability and price.We face competition primarily from:•India-based technology outsourcing IT services providers, such as Cognizant Technology Solutions (NASDAQ:CTSH), GlobalLogic, HCLTechnologies, Infosys Technologies (NASDAQ:INFY), Mindtree, Symphony Technology Group, Tata Consultancy Services and Wipro(NASDAQ:WIT);•Local CEE technology outsourcing IT services providers such as Luxoft Holding, Inc. (NYSE:LXFT);•Large global consulting and outsourcing firms, such as Accenture, Atos Origin, Capgemini, CSC and IBM;•China-based technology outsourcing IT services providers such as Camelot Information Services, and Pactera; and•In-house IT departments of our clients and potential clients.We believe that our focus on complex software product development solutions, our technical employee base, and the development and continuousimprovement in process methodologies, applications and tools position us well to compete9Table of Contentseffectively in the future. Our present and potential competitors may have substantially greater financial, marketing or technical resources; may be able torespond more quickly to new technologies or processes and changes in client demands; may be able to devote greater resources towards the development,promotion and sale of their services than we can; and may also make strategic acquisitions or establish cooperative relationships among themselves or withthird parties that increase their ability to address the needs of our clients.Intellectual PropertyProtecting our intellectual property rights is critical to our business. We have invested, and will continue to invest, in research and development toenhance our domain knowledge and create complex, specialized solutions for our clients. We rely on a combination of intellectual property laws, tradesecrets, confidentiality procedures and contractual provisions to protect our intellectual property. We require our employees, vendors and independentcontractors to enter into written agreements upon the commencement of their relationships with us, which assign to us all intellectual property and workproduct made, developed or conceived by them in connection with their employment with us. These agreements also provide that any confidential orproprietary information disclosed or otherwise made available by us remains confidential.We also enter into confidentiality and non-disclosure agreements with our clients. These customary agreements cover our use of the clients’ softwaresystems and platforms as our clients usually own the intellectual property in the products we develop for them. Furthermore, we usually grant a perpetual,worldwide, royalty-free, nonexclusive, transferable and non-revocable license to our clients to use our preexisting intellectual property, but only to the extentnecessary in order to use the software or systems we developed for them.Long-lived AssetsOur long lived-assets disclosed in the table below consist of property and equipment. The table below presents the locations of our long-lived assets: Year Ended December 31, 2015 2014 2013Belarus$44,879 $41,652 $38,697Ukraine4,487 4,392 5,525Hungary2,485 2,773 2,644Russia2,084 2,196 3,414United States1,969 2,001 2,217India1,099 — —Poland1,088 747 4Other2,408 1,373 814Total$60,499 $55,134 $53,315AcquisitionsWe have acquired a number of companies in order to expand our vertical-specific domain expertise, geographic footprint, service portfolio, client baseand management proficiency.On July 10, 2015, we acquired all of the outstanding equity of NavigationArts, Inc. and its subsidiary, NavigationArts, LLC (collectively“NavigationArts”). The U.S.-based NavigationArts provides digital consulting, architecture and content solutions and is regarded as a leading user-experience agency. The acquisition of NavigationArts added approximately 90 design consultants to our headcount.On November 16, 2015, we acquired all of the outstanding equity of Alliance Consulting Global Holdings, Inc. including its wholly-owned direct andindirect subsidiaries Alliance Global Services, Inc., Alliance Global Services, LLC, companies organized under the laws of USA, and Alliance Global ServicesIT India, a company organized under the laws of India (collectively, “AGS”). AGS provides software product development services and test automationsolutions and has multiple locations in the United States and India. The acquisition of AGS added 1,151 IT professionals to our headcount in the UnitedStates and India.10Table of ContentsRegulationsDue to the industry and geographic diversity of our operations and services, our operations are subject to a variety of rules and regulations. Severalforeign and U.S. federal and state agencies regulate various aspects of our business. See “Item 1A. Risk Factors — Risks Relating to Our Business — We aresubject to laws and regulations in the United States and other countries in which we operate, including export restrictions, economic sanctions and theForeign Corrupt Practices Act, or FCPA, and similar anti-corruption laws. If we are not in compliance with applicable legal requirements, we may be subjectto civil or criminal penalties and other remedial measures.”Corporate InformationEPAM Systems, Inc. was incorporated in the State of Delaware on December 18, 2002. Our predecessor entity was founded in 1993. Our principalexecutive offices are located at 41 University Drive, Suite 202, Newtown, Pennsylvania 18940 and our telephone number is 267-759-9000. We maintain awebsite at http://www.epam.com. Our website and the information accessible through our website are not incorporated into this annual report.We make certain filings with the Securities and Exchange Commission (“SEC”), including our annual report on Form 10-K, quarterly reports on Form10-Q, current reports on Form 8-K, and all amendments and exhibits to those reports. We make such filings available free of charge through the InvestorRelations section of our website, http://investors.epam.com, as soon as reasonably practicable after they are filed with the SEC. The filings are also availablethrough the SEC at the SEC’s Public Reference Room at 100 F Street, N.E., Washington, D.C. 20549 or by calling 1-800-SEC-0330. In addition, these filingsare available on the internet at http://www.sec.gov. Our press releases and recent analyst presentations are also available on our website. The information onour website does not constitute a part of this annual report.Item 1A. Risk FactorsRisk factors, which could cause actual results to differ from our expectations and which could negatively impact our financial condition and results ofoperations, are discussed below and elsewhere in this annual report. The risks and uncertainties described below are not the only ones we face. If any of therisks or uncertainties described below or any additional risks and uncertainties actually occur, our business, results of operations and financial conditioncould be materially and adversely affected. In particular, forward-looking statements are inherently subject to risks and uncertainties, some of which cannotbe predicted or quantified. See “Special Note Regarding Forward-Looking Statements”.Risks Relating to Our BusinessWe may be unable to effectively manage our rapid growth or achieve anticipated growth, which could place significant strain on our managementpersonnel, systems and resources.We have experienced rapid growth and significantly expanded our business over the past several years, both organically and through acquisitions. Wehave also grown our support function headcount, including finance, legal and other areas. Our rapid growth has placed and will continue to place significantdemands on our management and our administrative, operational and financial infrastructure. Continued expansion increases the challenges we face in:•recruiting, training and retaining sufficiently skilled IT professionals and management personnel;•adhering to and further improving our high-quality and process execution standards and maintaining high levels of client satisfaction;•managing a larger number of clients in a greater number of industries and locations;•maintaining effective oversight of personnel and delivery centers;•coordinating effectively across geographies and business units to execute our strategic plan; and•developing and improving our internal administrative infrastructure, particularly our financial, operational, communications and other internalsystems.Moreover, we intend to continue our expansion for the foreseeable future to pursue existing and potential market opportunities. As we introduce newservices or enter into new markets, we may face new market, technological, operational, compliance and administrative risks and challenges, and we may notbe able to mitigate these risks and challenges to successfully grow those services or markets. As a result of these problems associated with expansion, we maynot be able to achieve our anticipated growth and our business, prospects, financial condition and results of operations could be materially adverselyaffected.11Table of ContentsOur failure to successfully attract, train and retain new IT professionals with the qualifications necessary to fulfill the needs of our existing andfuture clients could materially adversely affect our ability to provide high quality services to those clients.The ability to hire and retain highly-skilled information technology professionals is critical to our success. To maintain and renew existingengagements and obtain new business, we must attract, train and retain skilled IT professionals, including experienced management IT professionals.Competition for IT professionals can be intense in the markets where we operate and, accordingly, we may not be able to hire or retain all of the ITprofessionals necessary to meet our ongoing and future business needs. Consequently, we may have to forgo projects due to lack of resources or inability tostaff projects optimally.A significant increase in the attrition rate among IT professionals with specialized skills could decrease our operating efficiency and productivity andcould lead to a decline in demand for our services. In addition, any reductions in headcount for economic or business reasons, however temporary, couldnegatively affect our reputation as an employer and our ability to hire IT professionals to meet our business requirements.Increases in wages for our IT professionals and other compensation expense could prevent us from sustaining our competitive advantage and resultin dilution to our stockholders.Wage costs for IT professionals in CIS, CEE and APAC, and certain other geographies in which we operate are lower than comparable wage costs inmore developed countries. However, wage costs in the service industry in these countries may increase at a faster rate than in the past, which ultimately maymake us less competitive unless we are able to increase the efficiency and productivity of our IT professionals as well as the prices we can charge for ourservices. Increases in wage costs may reduce our profitability.Additionally, we have granted certain equity-based awards under our stock incentive plans and entered into certain other stock-based compensationarrangements in the past, and expect to continue this practice. The expenses associated with stock-based compensation may reduce the attractiveness to us ofissuing equity awards under our equity incentive plan. However, if we do not grant equity awards, or if we reduce the value of equity awards we grant, we maynot be able to attract and retain key personnel. If we grant more equity awards to attract and retain key personnel, the expenses associated with suchadditional equity awards could materially adversely affect our results of operations. The issuance of equity-based compensation would also result inadditional dilution to our stockholders.Our success depends substantially on the continuing efforts of our senior executives and other key personnel, and our business may be severelydisrupted if we lose their services.Our future success heavily depends upon the continued services of our senior executives and other key employees. If one or more of our seniorexecutives or key employees are unable or unwilling to continue in their present positions, it could disrupt our business operations, and we may not be ableto replace them easily or at all. In addition, competition for senior executives and key personnel in our industry is intense, and we may be unable to retain oursenior executives and key personnel or attract and retain new senior executives and key personnel in the future, in which case our business may be severelydisrupted.If any of our senior executives or key personnel, such as business development managers, joins a competitor or forms a competing company, we maylose clients, suppliers, know-how and key IT professionals and staff members to them. Additionally, there could be unauthorized disclosure or use of ourtechnical knowledge, practices or procedures by such personnel. If any dispute arises between our senior executives or key personnel and us, any non-competition, non-solicitation and non-disclosure agreements we have with our senior executives or key personnel might not provide effective protection tous, especially in CIS and CEE countries where some of our senior executives and key employees reside, in light of uncertainties with legal systems in CIS andCEE countries.Our global business exposes us to operational and economic risks.We are a global company with substantial international operations. Our revenues from clients outside North America represented 45.9%, 48.5% and47.8% of our revenues excluding reimbursable expenses for 2015, 2014 and 2013. The majority of our employees, along with our development and deliverycenters, are located in the CIS and CEE. The global nature of our business creates operational and economic risks.Risks inherent in conducting international operations include:•foreign exchange fluctuations;•application and imposition of protective legislation and regulations relating to import or export;•difficulties in enforcing intellectual property and/or contractual rights;12Table of Contents•complying with a wide variety of foreign laws;•potentially adverse tax consequences;•tariffs, quotas and other trade protection measures;•competition from companies with more experience in a particular country or with international operations;•potential difficulties in collecting accounts receivable;•overall foreign policy and variability of foreign economic conditions.We earn our revenues and incur our expenses in multiple currencies, which exposes us to foreign exchange risks relating to revenues, receivables,compensation, purchases and capital expenditures. Currency exchange volatility caused by political or economic instability or other factors, could materiallyimpact our results. See “Item 7A. Quantitative and Qualitative Disclosures about Market Risk.” The IT services industry is particularly sensitive to theeconomic environment and the industry tends to decline during general economic downturns. Given our significant revenues from North America andEurope, if those economies further weaken or slow, pricing for our services may be depressed and our clients may reduce or postpone their technologyspending significantly, which may in turn lower the demand for our services and negatively affect our revenues and profitability.War, terrorism, other acts of violence or natural or manmade disasters may affect the markets in which we operate, our clients, and our servicedelivery.Our business may be negatively affected by instability, disruption or destruction in a geographic region in which we operate, regardless of cause,including war, terrorism, riot, civil insurrection or social unrest; and natural or manmade disasters, including famine, flood, fire, earthquake, storm or disease.Such events may cause clients to delay their decisions on spending for IT services and give rise to sudden significant changes in regional and globaleconomic conditions and cycles. These events also pose significant risks to our people and to physical facilities and operations around the world, whether thefacilities are ours or those of our clients, which could materially adversely affect our financial results. By disrupting communications and travel, giving rise totravel restrictions, and increasing the difficulty of obtaining and retaining highly-skilled and qualified IT professionals, these events could make it difficultor impossible for us to deliver services to some or all of our clients. Travel restrictions could cause us to incur additional unexpected labor costs and expensesor could restrain our ability to retain the skilled IT professionals we need for our operations. In addition, any extended disruptions of electricity, other publicutilities or network services at our facilities, as well as system failures at, or security breaches in, our facilities or systems, could also adversely affect ourability to serve our clients.Emerging markets are subject to greater risks than more developed markets, including significant legal, economic, tax and political risks.We have significant operations in CIS and CEE countries, India and other Asian countries, which are generally considered to be emerging markets.Investors in emerging markets should be aware that these markets are vulnerable to market downturns and economic slowdowns elsewhere in the world andare subject to greater risks than more developed markets, including foreign laws and regulations and the potential imposition of trade or foreign exchangerestrictions or sanctions, tax increases, fluctuations in exchange rates, inflation and unstable political and military situations, and labor issues. The economiesof certain countries where we operate have experienced periods of considerable instability and have been subject to abrupt downturns. Moreover, emergingmarkets have less established legal systems, which can be characterized by gaps in regulatory structures, selective enforcement of laws, and limited judicialand administrative guidance on legislation, among other limitations. Financial problems or an increase in the perceived risks associated with investing inemerging economies could dampen foreign investment in these markets and materially adversely affect their economies. Such economic instability and anyfuture deterioration in the international economic situation could materially adversely affect our business, financial condition and results of operations.13Table of ContentsOur operations may be adversely affected by ongoing conflict in Ukraine.Continuing military activities in Ukraine have combined with Ukraine’s weak economic conditions to fuel ongoing uncertainty in Ukraine, Russiaand other markets. In response to the actions in Ukraine, the EU, United States, Canada, Japan, Switzerland and other nations have imposed, and maycontinue imposing further, economic sanctions, including specific sanctions on certain Russian entities (specifically in the energy, defense and financialsectors). Restored stability of Ukraine’s political and economic conditions may not occur for some time and there could be increased violence or economicdistress in Ukraine or other areas in the region.We have delivery centers in the Ukraine employing approximately 3,734 IT professionals, none of which are located in the most volatile regions ofEastern Ukraine. We also have delivery centers in Russia, employing approximately 2,235 IT professionals located in various cities including Moscow andSt. Petersburg. To date we have not experienced any interruption in our office infrastructure, utility supply or Internet connectivity needed to support ourclients. We continue to monitor the situation closely. Our contingency plans include relocating work or personnel to other locations and adding newlocations, as appropriate. We have no way to predict the progress or outcome of the situation, as the political and civil unrest and reported military activitiesare fluid and beyond our control. Prolonged political instability in Ukraine, sanctions against Russia and Russia’s potential response to such sanctions couldhave a material adverse effect on our operations.We do not have long-term commitments from our clients, and our clients may terminate contracts before completion or choose not to renewcontracts. A loss of business from significant clients could materially affect our results of operations.Our ability to maintain close relationships with our major clients is essential to the growth and profitability of our business. However, the volume ofwork performed for any specific client is likely to vary from year to year, especially since we generally are not our clients’ exclusive IT services provider andwe do not have long-term commitments from any clients to purchase our services. The ability of our clients to terminate master services agreements and workorders with or without cause makes our future revenues uncertain, as our clients are generally not obligated for any long-term commitments to us. Although asubstantial majority of our revenues are generated from clients who also contributed to our revenues during the prior year, our engagements with our clientsare typically for projects that are singular in nature. Therefore, we must seek to obtain new engagements when our current engagements end. Our failure toperform or observe any contractual obligations could also result in termination or non-renewal of a contract, as could a change of control of our company.There are a number of factors relating to our clients that are outside of our control, which might lead them to terminate a contract or project with us,including a client’s:•financial difficulties;•corporate restructuring, or mergers and acquisitions activity;•change in strategic priorities, resulting in elimination of the impetus for the project or a reduced level of technology spending;•change in outsourcing strategy resulting in moving more work to the client’s in-house technology departments or to our competitors; and•replacement of existing software with packaged software supported by licensors.Termination or non-renewal of a customer contract could cause us to experience a higher than expected number of unassigned employees and anincrease in our cost of revenues as a percentage of revenues, until we are able to reduce or reallocate our headcount. The loss of any of our major clients, or asignificant decrease in the volume of work they outsource to us or the price at which we sell our services to them, if not replaced by new client engagements,could materially adversely affect our revenues and thus our results of operations.14Table of ContentsOur revenues are highly dependent on a limited number of industries, and any decrease in demand for outsourced services in these industries couldreduce our revenues and adversely affect our results of operations.A substantial portion of our clients is concentrated in five specific industry verticals: Financial Services; Software and Hi-Tech; Media andEntertainment; Travel and Consumer; and Life Sciences and Healthcare. Our business growth largely depends on continued demand for our services fromclients in these five industry verticals and other industries that we may target in the future, as well as on trends in these industries to outsource IT services.A downturn in any of our targeted industries, a slowdown or reversal of the trend to outsource IT services in any of these industries or the introductionof regulations that restrict or discourage companies from outsourcing could result in a decrease in the demand for our services and materially adversely affectour business, financial condition and results of operations. For example, a worsening of economic conditions in the financial services industry, or significantconsolidation in any of these industries may reduce the demand for our services and negatively affect our revenues and profitability. Other developments inthe industries in which we operate may also lead to a decline in the demand for our services, and we may not be able to successfully anticipate and prepare forany such changes. Decreased demand for our services, or increased pricing pressure on us from our clients in these key industries could adversely affect ourresults of operations.If our pricing structures are based on inaccurate expectations and assumptions regarding the cost and complexity of performing our work, or if weare not able to maintain favorable pricing for our services, then our contracts could be unprofitable.We negotiate pricing terms with our clients utilizing a range of pricing structures and conditions. We face a number of risks when pricing our contracts.Our pricing is highly dependent on our internal forecasts, assumptions and predictions about our projects, the marketplace and global economic conditions(including foreign exchange volatility). Many of our projects entail the coordination of operations and personnel in multiple locations with different skillsets and competencies. Our pricing and cost estimates for the work that we perform may include anticipated long-term cost savings from transformational andother initiatives that we expect to achieve and sustain over the life of the contract. Because of these inherent uncertainties, we may underprice our projects(particularly with fixed-price contracts), fail to accurately estimate the costs of performing the work or fail to accurately assess the risks associated withpotential contracts. Any increased or unexpected costs, delays or failures to achieve anticipated cost savings, or unexpected risks we encounter in connectionwith the performance of this work, including those caused by factors outside our control, could make these contracts less profitable or unprofitable.Moreover, if we are not able to pass on to our clients increases in compensation cost (whether driven by competition for talent or ordinary-course payincreases) or charge premium prices when justified by market demand or the type of service, our profitability may suffer.In addition, a number of our contracts contain pricing terms that condition a portion of the payment of fees by the client on our ability to meet definedperformance goals, service levels and completion schedules set forth in the contracts. Our failure to meet such performance goals, service levels or completionschedules or our failure to meet client expectations in such contracts may result in less profitable or unprofitable engagements.Our profitability will suffer if we are not able to maintain our resource utilization levels and productivity levels.Our profitability is significantly impacted by our utilization levels of fixed-cost resources, including human resources as well as other resources suchas computers and office space, and our ability to increase our productivity levels. We have expanded our operations significantly in recent years, which hasmaterially increased both our headcount and fixed overhead costs. Some of our IT professionals are specially trained to work for specific clients or on specificprojects and some of our offshore development centers are dedicated to specific clients or specific projects. Our ability to manage our utilization levelsdepends significantly on our ability to hire and train high-performing IT professionals and to staff projects appropriately, and on the general economy and itseffect on our clients and their business decisions regarding the use of our services. If we experience a slowdown or stoppage of work for any client or on anyproject for which we have dedicated IT professionals or facilities, we may not be able to reallocate these IT professionals and facilities to other clients andprojects to keep their utilization and productivity levels high. If we are not able to maintain optimal resource utilization levels without corresponding costreductions or price increases, our profitability will suffer.If we are not successful in managing increasingly large and complex projects, we may not achieve our financial goals and our results of operationscould be adversely affected.To successfully perform larger and more complex projects, we need to establish and maintain effective, close relationships with our clients, continuehigh levels of client satisfaction and develop a thorough understanding of our clients’ operations. In addition, we may face a number of challenges managinglarger and more complex projects, including:•maintaining high-quality control and process execution standards;15Table of Contents•maintaining planned resource utilization rates on a consistent basis and using an efficient mix of onsite and offshore staffing;•maintaining productivity levels and implementing necessary process improvements; and•controlling costs.Our ability to successfully manage large and complex projects depends significantly on the skills of our management personnel and IT professionals,some of whom do not have experience managing large-scale or complex projects. In addition, large and complex projects may involve multiple engagementsor stages, and there is a risk that a client may choose not to retain us for additional stages or may cancel or delay additional planned engagements. Suchcancellations or delays may make it difficult to plan our project resource requirements. If we fail to successfully obtain engagements for large and complexprojects, we may not achieve our revenue growth and other financial goals. Even if we are successful in obtaining such engagements, a failure by us toeffectively manage these large and complex projects could damage our reputation, cause us to lose business, compress our margins and adversely affect ourbusiness and results of operations.We face risks associated with having a long selling and implementation cycle for our services that require us to make significant resourcecommitments prior to realizing revenues for those services.We have a long selling cycle for our IT services, which requires significant investment of human resources and time by both our clients and us. Beforecommitting to use our services, potential clients require us to expend substantial time and resources educating them on the value of our services and ourability to meet their requirements. Therefore, our selling cycle is subject to many risks and delays over which we have little or no control, including ourclients’ decision to choose alternatives to our services (such as other IT services providers or in-house resources) and the timing of our clients’ budget cyclesand approval processes. If our sales cycle unexpectedly lengthens for one or more large projects, it would negatively affect the timing of our revenues andhinder our revenue growth. For certain clients, we may begin work and incur costs prior to executing a contract. A delay in our ability to obtain a signedagreement or other persuasive evidence of an arrangement, or to complete certain contract requirements in a particular quarter, could reduce our revenues inthat quarter.Implementing our services also involves a significant commitment of resources over an extended period of time from both our clients and us. Ourclients may experience delays in obtaining internal approvals or delays associated with technology, thereby further delaying the implementation process.Our current and future clients may not be willing or able to invest the time and resources necessary to implement our services, and we may fail to close saleswith potential clients to whom we have devoted significant time and resources. Any significant failure to generate revenues or delays in recognizing revenuesafter incurring costs related to our sales or services process could materially adversely affect our business.If we are unable to collect our receivables from, or bill our unbilled services to, our clients, our results of operations and cash flows could bematerially adversely affected.Our business depends on our ability to successfully obtain payment from our clients of the amounts they owe us for work performed. We usually billand collect on relatively short cycles. We maintain allowances against receivables. Actual losses on client balances could differ from those that we currentlyanticipate and, as a result, we might need to adjust our allowances. There is no guarantee that we will accurately assess the creditworthiness of our clients.Weak or volatile macroeconomic and global financial system conditions could also result in financial difficulties for our clients, and, as a result, could causeclients to delay payments to us, request modifications to their payment arrangements that could increase our receivables balance, or default on their paymentobligations to us. Timely collection of client balances also depends on our ability to complete our contractual commitments and bill and collect ourcontracted revenues. If we are unable to meet our contractual requirements, we might experience delays in collection of and/or be unable to collect our clientbalances, and if this occurs, our results of operations and cash flows could be materially adversely affected. Moreover, in the event of delays in payment fromour governmental and quasi-governmental clients, we may have difficulty collecting on receivables owed.We face intense competition for clients and opportunities from onshore and offshore IT services companies, and increased competition, our inabilityto compete successfully against competitors, pricing pressures or loss of market share could materially adversely affect our business.The market for IT services is highly competitive, and we expect competition to persist and intensify. We face competition from offshore IT servicesproviders in other outsourcing destinations with low wage costs such as India and China, as well as competition from large, global consulting andoutsourcing firms and in-house IT departments of large corporations. Clients tend to engage multiple IT services providers instead of using an exclusive ITservices provider, which could reduce our revenues to the extent that clients obtain services from other competing IT services providers. Clients may prefer ITservices providers that have more locations or that are based in countries more cost-competitive or more stable than some of the emerging markets in whichwe operate.16Table of ContentsCurrent or prospective clients may elect to perform certain services themselves or may be discouraged from transferring services from onshore tooffshore IT services providers to avoid negative perceptions that may be associated with using an offshore IT services provider. This shift away from offshoreoutsourcing would seriously harm our ability to compete effectively with competitors that provide services from within the countries in which our clientsoperate.Some of our present and potential competitors may have substantially greater financial, marketing or technical resources than EPAM. Client buyingpatterns can change if clients become more price sensitive and accepting of low-cost suppliers with less emphasis on quality. Therefore, we cannot assure youthat we will be able to retain our clients while competing against such competitors. Increased competition, our inability to compete successfully, pricingpressures or loss of market share could materially adversely affect our business.Our ability to generate and retain business depends on our reputation in the marketplace.Our services are marketed to clients and prospective clients based on a number of factors. Since many of our specific client engagements involveunique services and solutions, our corporate reputation is a significant factor in our clients’ evaluation of whether to engage our service, and our clients’perception of our ability to add value through our services is critical to the profitability of our engagements. We believe the EPAM brand name and ourreputation are important corporate assets that help distinguish our services from those of our competitors and contribute to our efforts to recruit and retaintalented employees.However, our corporate reputation is potentially susceptible to damage by actions or statements made by current or former clients, competitors,vendors, adversaries in legal proceedings, government regulators, as well as members of the investment community and the media. There is a risk thatnegative information about our company, even if based on false rumor or misunderstanding, could adversely affect our business. In particular, damage to ourreputation could be difficult and time-consuming to repair, could make potential or existing clients reluctant to select us for new engagements, resulting in aloss of business, and could adversely affect our recruitment and retention efforts. Damage to our reputation could also reduce the value and effectiveness ofthe EPAM brand name and could reduce investor confidence in us.If we are unable to adapt to rapidly changing technologies, methodologies and evolving industry standards we may lose clients and our businesscould be materially adversely affected.Rapidly changing technologies, methodologies and evolving industry standards are inherent in the market for our services. Our future success willdepend in part upon our ability to anticipate developments in IT services, enhance our existing services and to develop and introduce new services to keeppace with such changes and developments and to meet changing client needs. The process of developing our client solutions is extremely complex and isexpected to become increasingly complex and expensive in the future due to the introduction of new platforms, operating systems, technologies andmethodologies. Our ability to keep pace with, anticipate or respond to changes in technology, methodology and business is subject to a number of risks,including that:•we may find it difficult or costly to update our services, applications, tools and software and to develop new services quickly enough to meet ourclients’ needs;•we may find it difficult or costly to make some features of our software work effectively and securely over the Internet or with new or changedoperating systems;•we may find it difficult or costly to update our software and services to keep pace with business, evolving industry standards, methodologies,regulatory and other developments in the industries where our clients operate; and•we may find it difficult to maintain a high level of quality in implementing new technologies and methodologies.We may not be successful in anticipating or responding to these developments in a timely manner, or if we do respond, the services, technologies ormethodologies we develop or implement may not be successful in the marketplace. Further, services, technologies or methodologies that are developed byour competitors may render our services non-competitive or obsolete. Our failure to enhance our existing services and to develop and introduce new servicesto promptly address the needs of our clients could cause us to lose clients and materially adversely affect our business.17Table of ContentsUndetected software design defects, errors or failures may result in loss of or delay in market acceptance of our services or in liabilities that couldmaterially adversely affect our business.Our software development solutions involve a high degree of technological complexity, have unique specifications and could contain design defectsor software errors that are difficult to detect and correct. Errors or defects may result in the loss of current clients and loss of, or delay in, revenues, loss ofmarket share, loss of client data, a failure to attract new clients or achieve market acceptance, diversion of development resources and increased support orservice costs. We cannot provide assurance that, despite testing by our clients and us, errors will not be found in new software product development solutions,which could result in litigation, other claims for damages against us, as well as reputational harm and thus could materially adversely affect our business.Security breaches and other disruptions to network security could compromise our information and expose us to liability, which would cause ourbusiness and reputation to suffer.In the ordinary course of business, we have access to, collect, store, process and transmit sensitive or confidential data, including intellectual property,our proprietary business information and that of our clients, and personally identifiable information of our clients and employees, in our data centers and onour networks. The secure processing, maintenance and transmission of this information is critical to our operations and business strategy. Despite our securitymeasures, our information technology and infrastructure may be vulnerable to attacks by hackers or breached due to human error, malfeasance or otherdisruptions. Any such breach could compromise our networks and the information stored there could be accessed, publicly disclosed, misappropriated, lost orstolen. Any such access, disclosure or other loss of information could result in legal claims or proceedings, liability under applicable laws and regulatorypenalties. Such a breach or disruption could also disrupt our operations and the services we provide to customers, damage our reputation, and cause a loss ofconfidence in our products and services, as well as require us to expend significant resources to protect against further breaches and to rectify problemscaused by such a breach or disruption. Any of these results could adversely affect our business, revenues and competitive position.A significant failure in our telecommunications or IT infrastructure or systems could harm our service model, which could result in a reduction ofour revenue and otherwise disrupt our business.Part of our service model is to maintain active voice and data communications, financial control, accounting, customer service and other dataprocessing systems between our clients’ offices, our delivery centers and our client management locations. Moreover, many of our key systems for corporateoperations are internally-developed applications. Our business activities may be materially disrupted in the event of a partial or complete failure of any ofthese internet, IT or communication systems, which could be caused by, among other things, software malfunction, computer virus attacks, conversion errorsdue to system upgrading, damage from fire, earthquake, power loss, telecommunications failure, unauthorized entry, demands placed on internetinfrastructure by growing numbers of users and time spent online or increased bandwidth requirements or other events beyond our control. Internally-developed systems may not possess the same level of control, security or support that traditional third-party systems and applications do. Loss of all or part ofthe infrastructure or systems for a period of time could hinder our performance or our ability to complete client projects on time which, in turn, could lead to areduction of our revenue or otherwise materially adversely affect our business and business reputation.We may be liable to our clients for damages caused by the disclosure of confidential information, system failures or errors.If any person, including any of our personnel, misappropriates sensitive or confidential client information, including personally identifiableinformation, we could be subject to significant liability from our clients or from our clients’ customers for breaching contractual confidentiality provisions orprivacy laws. Some of our client agreements do not limit our potential liability for certain occurrences, including breaches of confidentiality andinfringement indemnity. Furthermore, breaches of confidentiality may entitle the aggrieved party to equitable remedies, including injunctive relief. Any suchbreach or misappropriation resulting in unauthorized disclosure of sensitive or confidential client information, or a violation of intellectual property rights,whether through employee misconduct, breach of our computer systems, systems failure or otherwise, may subject us to liabilities, damage our reputation andcause us to lose clients.18Table of ContentsIf we cause disruptions to our clients’ businesses or provide inadequate service, our clients may have claims for substantial damages against us,which could cause us to lose clients, have a negative effect on our reputation and adversely affect our results of operations.If our IT professionals make errors in the course of delivering services to our clients or fail to consistently meet service requirements of a client, theseerrors or failures could disrupt the client’s business, which could result in a reduction in our revenues or a claim for substantial damages against us.Furthermore, any errors by our employees in the performance of services for a client, or poor execution of such services, could result in a client terminatingour engagement and seeking damages from us. In addition, a failure or inability to meet a contractual requirement could seriously damage our reputation andaffect our ability to attract new business. Any failure in a client’s system or breach of security relating to the services we provide to the client could damageour reputation or result in a claim for substantial damages against us, regardless of our responsibility for such failure. The successful assertion of one or morelarge claims against us, whether or not successful could materially adversely affect our reputation, business, financial condition and results of operations.From time to time we may invest substantial cash in new facilities and physical infrastructure, and our profitability could be reduced if our businessdoes not grow proportionately.As our business grows, we may invest in new facilities and physical infrastructure. We may encounter cost overruns or project delays in connectionwith new facilities. These expansions will likely increase our fixed costs and if we are unable to grow our business and revenues proportionately, ourprofitability may be reduced.If we fail to integrate or manage acquired companies efficiently, or if the acquired companies do not perform to our expectations, our overallprofitability and growth plans could be materially adversely affected.Part of our expansion strategy includes strategic acquisitions. These transactions involve significant challenges, including that the risk that anacquisition does not advance our business strategy, that we do not achieve a satisfactory return on our investment, that we are unable to successfully integratean acquired company’s employees, client relationships and operations, and that the transactions divert significant management attention and financialresources from our ongoing business.The primary value of many potential acquisition targets in the IT services industry lies in their skilled IT professionals and established clientrelationships. Transitioning these types of assets to our business can be particularly difficult due to different corporate cultures and values, geographicdistance and other intangible factors. These challenges could disrupt our ongoing business, distract our management and employees and increase ourexpenses, including causing us to incur significant one-time expenses and write-offs, and make it more difficult and complex for our management toeffectively manage our operations. If we are not able to successfully integrate an acquired entity and its operations and to realize the benefits envisioned forsuch acquisition, our overall growth and profitability plans may be adversely affected.Our effective tax rate could be materially adversely affected by several factors.We conduct business globally and file income tax returns in multiple jurisdictions. Our effective tax rate could be materially adversely affected byseveral factors, including changes in the amount of income taxed by or allocated to the various jurisdictions in which we operate that have differing statutorytax rates; changing tax laws, regulations and interpretations of such tax laws in multiple jurisdictions; and the resolution of issues arising from tax audits orexaminations and any related interest or penalties.The determination of our provision for income taxes and other tax liabilities requires estimation, judgment and calculations where the ultimate taxdetermination may not be certain. Our determination of tax liability is always subject to review or examination by authorities in various jurisdictions.If a tax authority in any jurisdiction reviews any of our tax returns and proposes an adjustment, including as a result of a determination that the transferprices and terms we have applied are not appropriate, such an adjustment could have a negative impact on our business.19Table of ContentsOur earnings could be adversely affected if we change our intent not to repatriate earnings in the CIS and CEE or such earnings become subject toU.S. tax on a current basis.We do not accrue incremental U.S. taxes on all CIS and CEE earnings as these earnings (as well as other foreign earnings for all periods) are consideredto be indefinitely reinvested outside of the United States. While we have no plans to do so, events may occur in the future that could effectively force us tochange our intent not to repatriate our foreign earnings. If we change our intent and repatriate such earnings, we will have to accrue the applicable amount oftaxes associated with such earnings and pay taxes at a substantially higher rate than our effective income tax rate in 2015. These increased taxes couldmaterially adversely affect our financial condition and results of operations.Our operating results may be negatively impacted by the loss of certain tax benefits provided by the governments of Belarus and other countries tocompanies in our industry.Our subsidiary in Belarus is a member of the Belarus Hi-Tech Park, in which member technology companies are 100% exempt from Belarusian incometax (which as of the date of this annual report was 18%) and from the value added tax for a period of 15 consecutive years effective July 1, 2006 and levied ata reduced rate on a variety of taxes. Our subsidiary in Russia benefits from a substantially reduced rate on social contributions and an exemption on valueadded tax in certain circumstances, which is a benefit to qualified IT companies in Russia. If these tax benefits are changed, terminated, not extended orcomparable new tax incentives are not introduced, we expect that our effective income tax rate and/or our operating expenses would increase significantly,which could materially adversely affect our financial condition and results of operations. See “Item 7. Management’s Discussion and Analysis of FinancialCondition and Results of Operations — Provision for Income Taxes.”There may be adverse tax and employment law consequences if the independent contractor status of our IT professionals or the exempt status of ouremployees is successfully challenged.Some of our IT professionals are retained as independent contractors. Although we believe that we have properly classified these individuals asindependent contractors, there is nevertheless a risk that the IRS or another federal, state, provincial or foreign authority will take a different view.Furthermore, the tests governing the determination of whether an individual is considered an independent contractor or an employee are typically factsensitive and vary from jurisdiction to jurisdiction, as can the interpretation of the applicable laws. If a government authority or court enacts legislation oradopts regulations that change these classification tests or makes any adverse determination with respect to some or all of our independent contractors, wecould incur significant costs, including for prior periods, in respect of tax withholding, social security taxes or payments, workers’ compensation andunemployment contributions, and recordkeeping, or we may be required to modify our business model, any of which could materially adversely affect ourbusiness, financial condition and results of operations. There is also a risk that we may be subject to significant monetary liabilities arising from fines orjudgments as a result of any such actual or alleged non-compliance with applicable laws in this area. Further, if it were determined that any of ourindependent contractors should be treated as employees, we could possibly incur additional liabilities under our applicable employee benefit plans.In addition, we have classified nearly all of our U.S. employees as “exempt” under the Federal Labor Standards Act, or the FLSA. If it were determinedthat any of our U.S. employees should be classified as “non-exempt” under the FLSA, we may incur costs and liabilities for back wages, unpaid overtime,fines or penalties and/or be subject to employee litigation.Our insurance coverage may be inadequate to protect us against losses.Although we maintain some insurance coverage, including professional liability insurance, property insurance coverage for certain of our facilities andequipment and business interruption insurance coverage for certain of our operations, we do not insure for all risks in our operations. If any claims for injuryare brought against us, or if we experience any business disruption, litigation or natural disaster, we might incur substantial costs and diversion of resources.Most of the agreements we have entered into with our clients require us to purchase and maintain specified insurance coverage during the terms of theagreements, including commercial general insurance or public liability insurance, umbrella insurance, product liability insurance, and workers’compensation insurance. Some of these types of insurance are not available on reasonable terms or at all in some countries in which we operate. Although todate no client has brought any claims against us for such failure, our clients have the right to terminate these agreements as a result of such failure.20Table of ContentsThe banking and financial systems in less developed markets where we hold funds remain less developed than those in some more developedmarkets, and a banking crisis could place liquidity constraints on our business and materially adversely affect our business and financial condition.Banking and other financial systems in the CIS are less developed and regulated than in some more developed markets, and legislation relating tobanks and bank accounts is subject to varying interpretations and inconsistent application. Banks in the CIS generally do not meet the banking standards ofmore developed markets, and the transparency of the banking sector lags behind international standards. Furthermore, in Russia, Belarus and other CIScountries, bank deposits made by corporate entities generally are not insured. As a result, the banking sector remains subject to periodic instability. Anotherbanking crisis, or the bankruptcy or insolvency of banks through which we receive or with which we hold funds, particularly in Belarus, may result in the lossof our deposits or adversely affect our ability to complete banking transactions in that region, which could materially adversely affect our business andfinancial condition.Our business could be negatively affected if we incur legal liability, including with respect to our indemnification obligations, in connection withproviding our solutions and services.If we fail to meet our contractual obligations or otherwise breach obligations to our clients, we could be subject to legal liability. We may enter intonon-standard agreements because we perceive an important economic opportunity or because our personnel did not adequately adhere to our guidelines. Inaddition, the contracting practices of our competitors may cause contract terms and conditions that are unfavorable to us to become standard in themarketplace. If we cannot or do not perform our obligations, we could face legal liability and our contracts might not always protect us adequately throughlimitations on the scope and/or amount of our potential liability. As a result, we might face significant legal liability and payment obligations, and ourfinancial condition and results of operations could be materially adversely affected.We may not be able to prevent unauthorized use of our intellectual property, and our intellectual property rights may not be adequate to protect ourbusiness and competitive position.We rely on a combination of copyright, trademark, unfair competition and trade secret laws, as well as intellectual property assignment andconfidentiality agreements and other methods to protect our intellectual property rights. Protection of intellectual property rights and confidentiality in somecountries in which we operate may not be as effective as that in the United States or other countries with more mature legal systems.We require our employees and independent contractors to enter into written agreements with us upon the commencement of their relationship with us,which assign to EPAM all intellectual property and work product made, developed or conceived by them in connection with their employment orengagement with us. These agreements also provide that any confidential or proprietary information disclosed or otherwise made available by us be keptconfidential. We also enter into confidentiality and non-disclosure agreements with our clients and vendors. These agreements may not provide meaningfulprotection for trade secrets, know-how or other proprietary information in the event of any unauthorized use, misappropriation or disclosure of such tradesecrets, know-how or other proprietary information. The steps we have taken may be inadequate to prevent the misappropriation of our and our clients’proprietary technology. Reverse engineering, unauthorized copying or other misappropriation of our and our clients’ proprietary technologies, tools andapplications could enable third parties to benefit from our or our clients’ technologies, tools and applications without paying us for doing so, and our clientsmay hold us liable for that act and seek damages and compensation from us, which could harm our business and competitive position.We rely on our trademarks, trade names, service marks and brand names to distinguish our services and solutions from the services of our competitors,and have registered or applied to register many of these trademarks. We cannot assure you that our trademark applications will be approved. Third partiesmay oppose our trademark applications, or otherwise challenge our use of our trademarks. In the event that our trademarks are successfully challenged, wecould be forced to rebrand our services and solutions, which could result in loss of brand recognition, and could require us to devote resources to advertisingand marketing new brands. Further, we cannot assure you that competitors will not infringe our trademarks, or that we will have adequate resources to enforceour trademarks.We may need to enforce our intellectual property rights through litigation. Litigation relating to our intellectual property may not prove successfuland might result in substantial costs and diversion of resources and management attention.In addition, we rely on certain third-party software to conduct our business. If we lose the licenses which permit us to use such software, they may bedifficult to replace and it may be costly to do so.21Table of ContentsWe may face intellectual property infringement claims that could be time-consuming and costly to defend. If we fail to defend ourselves against suchclaims, we may lose significant intellectual property rights and may be unable to continue providing our existing services.Our success largely depends on our ability to use and develop our technology, tools, code, methodologies and services without infringing theintellectual property rights of third parties, including patents, copyrights, trade secrets and trademarks. We may be subject to litigation involving claims ofpatent infringement or violation of other intellectual property rights of third parties.We typically indemnify clients who purchase our services and solutions against potential infringement of intellectual property rights, which subjectsus to the risk of indemnification claims. These claims may require us to initiate or defend protracted and costly litigation on behalf of our clients, regardlessof the merits of these claims and are often not subject to liability limits or exclusion of consequential, indirect or punitive damages. If any of these claimssucceed, we may be forced to pay damages on behalf of our clients, redesign or cease offering our allegedly infringing services or solutions, or obtain licensesfor the intellectual property such services or solutions allegedly infringe. If we cannot obtain all necessary licenses on commercially reasonable terms, ourclients may be forced to stop using our services or solutions.The holders of patents and other intellectual property rights potentially relevant to our service offerings may make it difficult for us to acquire alicense on commercially acceptable terms. In addition, we may be unaware of intellectual property registrations or applications relating to our services thatmay give rise to potential infringement claims against us. There may also be technologies licensed to and relied on by us that are subject to infringement orother corresponding allegations or claims by third parties, which may damage our ability to rely on such technologies.Further, our current and former employees and/or subcontractors could challenge our exclusive rights in the software they have developed in thecourse of their employment. In Russia and certain other countries in which we operate, an employer is deemed to own the copyright in works created by itsemployees during the course, and within the scope, of their employment, but the employer may be required to satisfy additional legal requirements in order tomake further use and dispose of such works. While we believe that we have complied with all such requirements, and have fulfilled all requirements necessaryto acquire all rights in software developed by our independent contractors and/or subcontractors, these requirements are often ambiguously defined andenforced. As a result, we cannot assure that we would be successful in defending against any claim by our current or former employees, independentcontractors and/or subcontractors challenging our exclusive rights over the use and transfer of works those employees, independent contractors and/orsubcontractors created or requesting additional compensation for such works.Parties making infringement claims may be able to obtain an injunction to prevent us from delivering our services or using technology involving theallegedly infringing intellectual property. Intellectual property litigation is expensive, time-consuming and could divert management’s attention from ourbusiness. A successful infringement claim against us, whether with or without merit, could, among others things, require us to pay substantial damages,develop non-infringing technology, or rebrand our name or enter into royalty or license agreements that may not be available on acceptable terms, if at all,and would require us to cease making, licensing or using products that have infringed a third party’s intellectual property rights. Protracted litigation couldalso result in existing or potential clients deferring or limiting their purchase or use of our software product development services or solutions until resolutionof such litigation, or could require us to indemnify our clients against infringement claims in certain instances. Any of these actions, regardless of theoutcome of litigation or merits of the claim, could damage our reputation and materially adversely affect our business, financial condition and results ofoperations.We are subject to laws and regulations in the United States and other countries in which we operate, including export restrictions, economicsanctions and the Foreign Corrupt Practices Act, or FCPA, and similar anti-corruption laws. If we are not in compliance with applicable legalrequirements, we may be subject to civil or criminal penalties and other remedial measures.As a company with international operations, we are subject to many laws and regulations restricting our operations, including activities involvingrestricted countries, organizations, entities and persons that have been identified as unlawful actors or that are subject to U.S. sanctions imposed by the Officeof Foreign Assets Control, or OFAC, or other international sanctions that prohibit us from engaging in trade or financial transactions with certain countries,businesses, organizations and individuals. We are subject to the FCPA, which prohibits U.S. companies and their intermediaries from bribing foreign officialsfor the purpose of obtaining or keeping business or otherwise obtaining favorable treatment, and other laws concerning our international operations. TheFCPA’s foreign counterparts contain similar prohibitions, although varying in both scope and jurisdiction and not limited to transactions with governmentofficials. We operate in many parts of the world that have experienced governmental corruption to some degree, and, in certain circumstances, strictcompliance with anti-bribery laws may conflict with local customs and practices.22Table of ContentsWe have a compliance program with controls and procedures designed to ensure our compliance with the FCPA, OFAC sanctions, and similarsanctions, laws and regulations. The continuing implementation and ongoing development and monitoring of such program may be time consuming andexpensive, and could result in the discovery of issues or violations with respect to the foregoing by us or our employees, independent contractors,subcontractors or agents of which we were previously unaware.Any violations of these or other laws, regulations and procedures by our employees, independent contractors, subcontractors and agents could exposeus to administrative, civil or criminal penalties, fines or business restrictions and would adversely affect our reputation and the market for shares of ourcommon stock and may require certain of our investors to disclose their investment in our company under certain state laws.Anti-outsourcing legislation and restrictions on immigration, if adopted, may affect our ability to compete for and provide services to clients in theUnited States or other countries, which could hamper our growth and cause our revenues to decline.The majority of our employees are nationals of CIS and CEE countries, and in 2015, we added significant headcount in India. Some of our projectsrequire a portion of the work to be undertaken at our clients’ facilities, which are sometimes located outside the CIS, CEE and India. The ability of ouremployees to work in necessary locations around the world depends on their ability to obtain the required visas and work permits, and this process can belengthy and difficult. Immigration laws are subject to legislative change, as well as to variations in standards of application and enforcement due to politicalforces and economic conditions.In addition, the issue of companies outsourcing services to organizations operating in other countries is a topic of political discussion in manycountries, including the United States, which is our largest source of revenues. Many organizations and public figures in the United States and Europe havepublicly expressed concern about a perceived association between offshore outsourcing IT services providers and the loss of jobs in their home countries, andthere are legislative measures under consideration in the U.S. Congress and in various state legislatures to address this concern. It is possible that pendinglegislation in the United States may impose restrictions on our ability to deploy employees holding U.S. work visas to client locations, which couldadversely impact our business. It is generally difficult to predict the political and economic events that could affect immigration laws, or the restrictiveimpact they could have on obtaining or maintaining business visas for our employees. However, if enacted, such measures may broaden restrictions onoutsourcing by federal and state government agencies and on government contracts with firms that outsource services directly or indirectly, impact privateindustry with measures such as tax disincentives or intellectual property transfer restrictions, and/or restrict the use of certain work visas.Our reliance on visas for a number of employees makes us vulnerable to such changes and variations as it affects our ability to staff projects withemployees who are not citizens of the country where the work is to be performed. We may not be able to obtain a sufficient number of visas for our employeesor we may encounter delays or additional costs in obtaining or maintaining such visas, in which case we may not be able to provide services to our clients ona timely and cost-effective basis or manage our sales and delivery centers as efficiently as we otherwise could, any of which could hamper our growth andcause our revenues to decline.Similarly, legislation enacted in certain European jurisdictions and any future legislation in European jurisdictions or any other country in which wehave clients restricting the performance of services from an offshore location could also materially adversely affect our business, financial condition andresults of operations. For example, legislation enacted in the United Kingdom, based on the 1977 EC Acquired Rights Directive, has been adopted in someform by many European Union countries, and provides that if a company outsources all or part of its business to an IT services provider or changes its currentIT services provider, the affected employees of the company or of the previous IT services provider are entitled to become employees of the new IT servicesprovider, generally on the same terms and conditions as their original employment. In addition, dismissals of employees who were employed by the companyor the previous IT services provider immediately prior to that transfer are automatically considered unfair dismissals that entitle such employees tocompensation. As a result, in order to avoid unfair dismissal claims, we may have to offer, and become liable for, voluntary redundancy payments to theemployees of our clients who outsource business to us in the United Kingdom and other European Union countries who have adopted similar laws. Thislegislation could materially affect our ability to obtain new business from companies in the United Kingdom and European Union and to provide outsourcedservices to companies in the United Kingdom and European Union in a cost-effective manner.23Table of ContentsOur CIS subsidiaries can be forced into liquidation on the basis of formal noncompliance with certain legal requirements.We operate in CIS countries primarily through locally organized subsidiaries. Certain provisions of Russian law and the laws of other CIS countriesmay allow a court to order liquidation of a locally organized legal entity on the basis of its formal noncompliance with certain requirements duringformation, reorganization or during its operations. If the company fails to comply with certain requirements including those relating to minimum net assets,governmental or local authorities can seek the involuntary liquidation of such company in court, and the company’s creditors will have the right toaccelerate their claims or demand early performance of the company’s obligations as well as demand compensation of any damages. If involuntaryliquidation of any of our subsidiaries were to occur, such liquidation could materially adversely affect our financial condition and results of operations.We may need additional capital, and a failure by us to raise additional capital on terms favorable to us, or at all, could limit our ability to grow ourbusiness and develop or enhance our service offerings to respond to market demand or competitive challenges.We believe that our current cash, cash flow from operations and revolving line of credit are sufficient to meet our anticipated cash needs for at least thenext 12 months. We may, however, require additional cash resources due to changed business conditions or other future developments, including anyinvestments or acquisitions we may decide to pursue. If these resources are insufficient to satisfy our cash requirements, we may seek to sell additional equityor debt securities or obtain another credit facility. The sale of additional equity securities could result in dilution to our stockholders. The incurrence ofindebtedness would result in increased debt service obligations and could require us to agree to operating and financing covenants that would restrict ouroperations. Our ability to obtain additional capital on acceptable terms is subject to a variety of uncertainties, including:•investors’ perception of, and demand for, securities of IT services companies;•conditions of the United States and other capital markets in which we may seek to raise funds;•our future results of operations and financial condition;•government regulation of foreign investment in the CIS and CEE and other countries in which we operate or in which we plan to expand; and•economic, political and other conditions both globally and in emerging markets.Our stock price is volatile.Our common stock has at times experienced substantial price volatility as a result of variations between our actual and anticipated financial results,announcements by our competitors and us, projections or speculation about our business or that of our competitors by the media or investment analysts oruncertainty about current global economic conditions. The stock market, as a whole, also has experienced extreme price and volume fluctuations that haveaffected the market price of many technology companies in ways that may have been unrelated to these companies’ operating performance. Furthermore, webelieve our stock price should reflect future growth and profitability expectations and, if we fail to meet these expectations, our stock price may significantlydecline.Compliance with changing regulation of corporate governance and public disclosure may result in additional expense and affect our operations.Changing laws, regulations and standards relating to corporate governance and public disclosure, including the Dodd-Frank Wall Street Reform andConsumer Protection Act, SEC regulations and New York Stock Exchange, or NYSE, rules, are creating uncertainty for companies such as ours. These new orchanged laws, regulations and standards are subject to varying interpretations in many cases due to their lack of specificity, and as a result, their applicationin practice may evolve over time as new guidance is provided by regulatory and governing bodies, which could result in continuing uncertainty regardingcompliance matters and higher costs necessitated by ongoing revisions to disclosure and corporate governance practices. As a result, our efforts to complywith evolving laws, regulations and standards have resulted in, and are likely to continue to result in, increased general and administrative expenses and adiversion of management time and attention from revenue-generating activities to compliance activities. If our efforts to comply with new or changed laws,regulations and standards differ from the activities intended by regulatory or governing bodies due to ambiguities related to practice, our reputation may beharmed.Item 1B. Unresolved Staff CommentsNone.Item 2. Properties24Table of ContentsWe are incorporated in Delaware with headquarters in Newtown, PA, with multiple delivery centers located in Belarus, Ukraine, Russia, Hungary,Kazakhstan, Bulgaria, China, Armenia, Poland, Czech Republic, Mexico, Austria and India, and client management locations in the United States, Canada,the United Kingdom, Germany, Sweden, Switzerland, Netherlands, Russia, Kazakhstan, Singapore, Hong Kong and Australia.The table below sets forth our principal properties:Location Square MetersLeased Square MetersOwned Total SquareMeters Delivery Centers and Client Management Locations: Belarus 37,287 21,669 58,956Ukraine 32,452 — 32,452Russia 20,399 — 20,399Hungary 16,560 — 16,560India 11,529 — 11,529United States 6,868 — 6,868China 5,889 — 5,889Poland 4,990 — 4,990Kazakhstan 2,735 — 2,735Mexico 2,007 — 2,007Bulgaria 1,850 — 1,850Czech Republic 1,757 — 1,757United Kingdom 1,090 — 1,090Canada 810 — 810Armenia 408 — 408Sweden 322 — 322Switzerland 112 — 112Germany 28 — 28Total 147,093 21,669 168,762Executive Office: Newtown, PA, United States 1,050 — 1,050Our facilities are used interchangeably among all of our segments. We believe that our existing facilities are adequate to meet our current requirements,and that suitable additional or substitute space will be available, if necessary.Item 3. Legal ProceedingsFrom time to time, we are involved in litigation and claims arising out of our operations in the normal course of business. We are not currently a partyto any material legal proceeding. In addition, we are not aware of any material legal or governmental proceedings against us, or contemplated to be broughtagainst us.Item 4. Mine Safety DisclosuresNone.PART IIItem 5. Market for Registrant’s Common Equity, Related Stockholder Matters and Issuer Purchases of Equity SecuritiesMarket InformationOur common stock is traded on the New York Stock Exchange (NYSE) under the symbol “EPAM.”Our shares have been publicly traded since February 8, 2012. The price range per share of common stock presented below represents the highest and lowestintraday sales prices for the Company’s common stock on the NYSE during each quarter of25Table of Contentsthe two most recent years.2015 Quarter Ended High Low December 31 $84.41 $67.29September 30 $76.69 $63.37June 30 $74.49 $57.58March 31 $63.50 $45.272014 Quarter Ended High Low December 31 $52.89 $40.42September 30 $44.36 $36.81June 30 $45.99 $29.44March 31 $46.70 $31.34As of February 10, 2016, we had approximately 36 stockholders of record of our common stock. The number of record holders does not include holdersof shares in “street name” or persons, partnerships, associations, corporations or other entities identified in security position listings maintained bydepositories.Dividend PolicyWe have not declared or paid any cash dividends on our common stock and currently do not anticipate paying any cash dividends in the foreseeablefuture. Instead, we intend to retain all available funds and any future earnings for use in the operation and expansion of our business. Any futuredetermination relating to dividend policy will be made at the discretion of our board of directors and will depend on our future earnings, capitalrequirements, financial condition, future prospects, applicable Delaware law, which provides that dividends are only payable out of surplus or current netprofits, and other factors that our board of directors deems relevant. In addition, our credit facility restricts our ability to make or pay dividends (other thancertain intercompany dividends) unless no potential or actual event of default has occurred or would be triggered.Equity Compensation Plan InformationSee “Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters” in Part III of this annual report forour equity compensation plan information.Performance GraphThe following graph compares the cumulative total stockholder return on our common stock with the cumulative total return on the S&P 500 Indexand a Peer Group Index (capitalization weighted) for the period beginning February 8, 2012, which is the date of our initial public offering, and ending onthe last day of our last completed fiscal year. The stock performance shown on the graph below is not indicative of future price performance. The followingperformance graph and related information shall not be deemed “soliciting material” or to be “filed” with the SEC, nor shall information be incorporated byreference into any future filing under the Securities Act of 1933 or Securities Exchange Act of 1934, each as amended, except to the extent that wespecifically incorporate it by reference into such filing.26Table of ContentsCOMPARISON OF CUMULATIVE TOTAL RETURN (1)(2) Among EPAM, the S&P 500 Index and a Peer Group Index(3) (Capitalization Weighted) Company / Index Base Period EPAM Systems,Inc. S&P 500Index Peer GroupIndex 12/31/2015 $561.57 $151.41 $140.479/30/2015 $532.29 $142.23 $151.746/30/2015 $508.79 $152.83 $139.893/31/2015 $437.79 $153.18 $148.8912/31/2014 $341.07 $152.52 $127.749/30/2014 $312.79 $146.10 $120.556/30/2014 $312.50 $145.21 $118.413/31/2014 $235.00 $138.70 $124.7612/31/2013 $249.57 $136.92 $124.189/30/2013 $246.43 $124.56 $103.036/30/2013 $194.14 $118.99 $80.393/31/2013 $165.93 $116.24 $99.8912/31/2012 $129.29 $105.65 $85.869/30/2012 $135.29 $106.72 $89.486/30/2012 $121.36 $100.90 $83.913/31/2012 $146.57 $104.33 $102.942/8/2012 $100 $100 $100 (1)Graph assumes $100 invested on February 8, 2012, in our common stock, the S&P 500 Index, and the Peer Group Index (capitalization weighted).(2)Cumulative total return assumes reinvestment of dividends.(3)We have constructed a Peer Group Index of other information technology consulting firms consisting of Virtusa Corporation (NASDAQ:VRTU), Cognizant TechnologySolutions Corp. (NASDAQ:CTSH), Infosys Ltd ADR (NYSE:INFY), Syntel, Inc. (NASDAQ:SYNT) and Wipro Ltd. (ADR) (NYSE:WIT).27Table of ContentsUnregistered Sales of Equity SecuritiesThere were no unregistered sales of equity securities by the Company during the year ended December 31, 2015.Purchases of Equity Securities by the Issuer and Affiliated PurchasersThere were no purchases of equity securities by the issuer and affiliated purchasers during the quarterly period ended December 31, 2015.Item 6. Selected Financial DataThe following table represents the selected financial data for each of the last five fiscal years. Our historical results are not necessarily indicative of theresults to be expected for any future period. The following selected financial data should be read in conjunction with “Item 7. Management’s Discussion andAnalysis of Financial Condition and Results of Operations” and our consolidated financial statements and related notes included elsewhere in this annualreport. Year Ended December 31, 2015 2014 2013 2012 2011 (in thousands, except per share data)Consolidated Income Statement Data: Revenues$914,128 $730,027 $555,117 $433,799 $334,528Operating expenses: Cost of revenues (exclusive of depreciation andamortization)566,913 456,530 347,650 270,361 205,336Selling, general and administrative expenses222,759 163,666 116,497 85,868 64,930Depreciation and amortization expense17,395 17,483 15,120 10,882 7,538Goodwill impairment loss— 2,241 — — 1,697Other operating expenses/(income), net1,094 3,924 (643) 682 19Income from operations105,967 86,183 76,493 66,006 55,008Interest and other income, net4,731 4,769 3,077 1,941 1,422Change in fair value of contingent consideration— (1,924) — — —Foreign exchange loss(4,628) (2,075) (2,800) (2,084) (3,638)Income before provision for income taxes106,070 86,953 76,770 65,863 52,792Provision for income taxes21,614 17,312 14,776 11,379 8,439Net income$84,456 $69,641 $61,994 $54,484 $44,353Net income per share of common stock(1): Basic$1.73 $1.48 $1.35 $1.27 $0.69Diluted$1.62 $1.40 $1.28 $1.17 $0.63Shares used in calculation of net income per share of commonstock: Basic48,721 47,189 45,754 40,190 17,094Diluted51,986 49,734 48,358 43,821 20,473 (1)In connection with the completion of our initial public offering, we effected an 8-for-1 common stock split as of January 19, 2012. All historical common stock and pershare information has been changed to reflect the common stock split.28Table of Contents As of December 31, 2015 2014 2013 2012 2011 (in thousands)Consolidated Balance Sheet Data: Cash and cash equivalents $199,449 $220,534 $169,207 $118,112 $88,796Time deposits 30,181 — — — —Accounts receivable, net 174,617 124,483 95,431 78,906 59,472Unbilled revenues 95,808 55,851 43,108 33,414 24,475Property and equipment, net 60,499 55,134 53,315 53,135 35,482Total assets 778,536 594,026 432,877 350,814 235,613Accrued expenses and other liabilities 60,384 32,203 20,175 19,814 24,782Deferred revenue 3,047 3,220 5,076 7,632 6,949Total liabilities 165,313 129,976 56,776 64,534 54,614Total stockholders’ equity 613,223 464,050 376,101 286,280 95,059Item 7. Management’s Discussion and Analysis of Financial Condition and Results of OperationsYou should read the following discussion and analysis of our financial condition and results of operations together with our audited consolidatedfinancial statements and the related notes included elsewhere in this annual report. In addition to historical information, this discussion contains forward-looking statements that involve risks, uncertainties and assumptions that could cause actual results to differ materially from management’s expectations.Factors that could cause such differences are discussed in the sections entitled “Special Note Regarding Forward-Looking Statements” and “Item 1A. RiskFactors.” We assume no obligation to update any of these forward-looking statements.Executive SummaryWe are a leading global provider of product development and software engineering solutions offering specialized technological consulting to many ofthe world’s leading organizations. Our clients depend on us to solve their complex technical challenges and rely on our expertise in core engineering,advanced technology, digital engagement and intelligent enterprise development. We are continuously venturing into new industries to expand our coreindustry client base in software and technology, financial services, media and entertainment, travel and hospitality, retail and distribution and life sciencesand healthcare. Our teams of developers, architects, strategists, engineers, designers, and product experts have the capabilities and skill sets to deliverbusiness results.Our global delivery model and centralized support functions, combined with the benefits of scale from the shared use of fixed-cost resources enhanceour productivity levels and enable us to better manage the efficiency of our global operations. As a result, we have created a delivery base whereby ourapplications, tools, methodologies and infrastructure allow us to seamlessly deliver services and solutions from our delivery centers to global clients acrossall geographies, further strengthening our relationships with them.Through increased specialization in focused verticals and a continued emphasis on strategic partnerships, we are leveraging our roots in softwareengineering to grow as a recognized brand in software development and end-to-end digital transformation services for our clients.Overview of 2015During the year ended December 31, 2015, total revenues were $914.1 million, an increase of approximately 25.2% over $730.0 million reported forthe same period a year ago. Our revenue grew in North America, Europe and APAC geographies both organically and through acquisitions. Our performanceremained strong across our key verticals, with the Life Sciences and Healthcare vertical emerging rapidly and showing growth of 72.8% during the yearended December 31, 2015, compared to the year ended December 31, 2014.We remain committed to maintaining and improving a well-balanced portfolio of clients and seek to grow revenues from our existing clients bycontinually expanding the scope and size of our engagements, as well as by growing our key client base through business development efforts and strategicacquisitions. During 2015, we made progress in this strategy and increased the reach of our offerings, both geographically and across industry verticals.During 2015, our top five and top ten customers accounted for 32.6% and 43.8% of consolidated revenues, respectively.29Table of ContentsWe continued our growth through strategic acquisitions in 2015. Through the July 2015 acquisition of NavigationArts we added approximately 90U.S.-based design consultants to EPAM’s headcount. The addition of NavigationArts enhances our digital consulting, architecture and content solutionspractice. In November 2015, we acquired AGS, establishing EPAM’s presence in India with over 1,000 IT professionals to enhance our software productdevelopment services and test automation services offerings. We expect these investments in EPAM’s strategic growth to result in expanded service offeringsand abilities for our clients.Summary of Results of Operations and Non-GAAP Financial MeasuresThe following table presents a summary of our results of operations for the years ended December 31, 2015, 2014 and 2013: Year Ended December 31, 2015 2014 2013 (in millions, except percentages) Revenues$914.1 100.0% $730.0 100.0% $555.1 100.0%Income from operations106.0 11.6 86.2 11.8 76.5 13.8Net income84.5 9.2 69.6 9.5 62.0 11.2For 2015, we reported results of operations consistent with the continued execution of our strategy. During 2015, our operating expenses increased inline with our increase in revenues as we continue to invest in our people, processes and infrastructure to support our goal to deliver high-quality offeringsthat meet the needs of our customers, differentiate our value proposition from that of our competition, and drive scale and growth.The key highlights of our consolidated results for 2015 were as follows:•The European segment continued its strong performance, generating revenue growth of $101.2 million during the year ended December 31, 2015, or33.8% over 2014;•Revenue increased in all our key verticals in 2015 as compared to 2014, specifically within the Software and Hi-Tech and Travel and Consumerverticals, which grew $35.0 million and $57.5 million respectively.•Income from operations grew 23.0% during the year ended December 31, 2015, over 2014, while income from operations as a percentage of revenuesdecreased by 0.2%. The slight decrease was due to a combination of factors, including an increase of $21.2 million in stock-based compensationexpense driven by increases in headcount and acquisitions.•Net income increased by 21.3% during 2015 compared with 2014. Expressed as a percentage of revenues, net income remained consistent despitethe adverse effect of a higher effective tax rate and significant foreign exchange rate changes in 2015 as compared to 2014.•Our organic growth was complemented by two strategic acquisitions completed during 2015, which expanded our highly skilled employee base,geographic footprint and service capabilities. Through acquisitions, we added capabilities in digital design as well as a delivery center in India.The operating results in any period are not necessarily indicative of the results that may be expected for any future period.We have significant international operations, and we earn revenues and incur expenses in multiple currencies. When important to management’sanalysis, operating results are compared in “constant currency terms”, a non-GAAP financial measure that excludes the effect of foreign currency exchangerate fluctuations. The effect of rate fluctuations is excluded by translating the current period’s revenues and expenses into U.S. dollars at the weightedaverage exchange rates of the prior period of comparison. See Item 7A, “Quantitative and Qualitative Disclosures About Market Risk” of this report for adiscussion of our exposure to exchange rates.30Table of ContentsEffects of InflationEconomies in CIS countries, particularly Belarus, Russia, Kazakhstan and Ukraine, have periodically experienced high rates of inflation. Periods ofhigher inflation may slow economic growth in those countries and as a result decrease demand for our services and negatively impact the business of ourexisting clients. Inflation is likely to increase some of our expenses, which may reduce our profitability, as we may not be able to pass these increases on toour clients. Generally, our largest expense that could be impacted by inflation is wages. We do not rely on borrowed funds for operations in those locations;therefore, increases in interest rates typical for inflationary environments do not currently pose a risk to our business.Ukraine has been experiencing political and economic turmoil with no improvement as of the date of this report, severely impacting the Ukrainianeconomy. The Ukrainian currency has been weakened and the negative outlook in the Ukrainian economy continues. We have not seen a significant impactfrom the inflation in Ukraine. Additionally, we do not have clients located in Ukraine.Inflation in Russia increased late in 2014 due to weakening of the Russian ruble and decreasing oil prices. During 2015, inflation in Russia remainedsteady with some decline observed in recent months. Our operations in Russia have not been affected directly by local inflation; however, we have notedsome decline in demand for our services by our clients in Russia.Belarus has been experiencing hyperinflation over the last several years. The measures currently used by the Belarusian government to control thisrecent inflation include monetary policy and pricing instruments, including increasing interest rates and the use of anti-monopoly laws to prevent theincrease in pricing of goods, as well as privatization and using foreign borrowings to replenish the budget and stabilize the local currency. Inflation,government actions to combat inflation and public speculation about possible additional actions have also contributed to economic uncertainty in Belarus.Belarus may experience high levels of inflation in the future. We have not seen a significant impact from the inflation in Belarus as our largest expense there,wages, is denominated in U.S. dollars in order to provide stability in our business and for our employees. Additionally, we do not have significant clientslocated in Belarus and for the year ended December 31, 2015, we had approximately $1.5, or 0.2%, of our revenues denominated in Belarusian rubles. Thefunctional currency for financial reporting purposes in Belarus is US dollars.Other locations where we have clients or perform services are not experiencing significant inflation and our business is not materially impacted byinflation in those locations.Periods of higher inflation may slow economic growth in those countries. Inflation also is likely to increase some of our costs and expenses, which wemay not be able to pass on to our clients and, as a result, may reduce our profitability. Inflationary pressures could also affect our ability to access financialmarkets and lead to counter-inflationary measures that may harm our financial condition, results of operations or adversely affect the market price of oursecurities.31Table of ContentsResults of OperationsThe following table sets forth a summary of our consolidated results of operations for the periods indicated. This information should be read togetherwith our consolidated financial statements and related notes included elsewhere in this annual report. The operating results in any period are not necessarilyindicative of the results that may be expected for any future period. Year Ended December 31, 2015 2014 2013 (in thousands, except percentages)Revenues$914,128 100.0 % $730,027 100.0 % $555,117 100.0 %Operating expenses: Cost of revenues (exclusive of depreciation andamortization)(1)566,913 62.0 456,530 62.5 347,650 62.6Selling, general and administrative expenses(2)222,759 24.4 163,666 22.4 116,497 21.0Depreciation and amortization expense17,395 1.9 17,483 2.4 15,120 2.7Goodwill impairment loss— — 2,241 0.3 — —Other operating expenses, net1,094 0.1 3,924 0.6 (643) (0.1)Income from operations105,967 11.6 86,183 11.8 76,493 13.8Interest and other income, net4,731 0.5 4,769 0.7 3,077 0.5Change in fair value of contingent consideration— — (1,924) (0.3) — —Foreign exchange loss(4,628) (0.5) (2,075) (0.3) (2,800) (0.5)Income before provision for income taxes106,070 11.6 86,953 11.9 76,770 13.8Provision for income taxes21,614 2.4 17,312 2.4 14,776 2.6Net income$84,456 9.2 % $69,641 9.5 % $61,994 11.2 % (1)Included $13,695, $8,648 and $4,823 of stock-based compensation expense for the years ended December 31, 2015, 2014 and 2013, respectively;(2)Included $32,138, $15,972 and $8,327 of stock-based compensation expense for the years ended December 31, 2015, 2014 and 2013, respectively.RevenuesOur revenues are derived primarily from providing software development services to our clients. We discuss below the breakdown of our revenue byservice offering, vertical, client location, contract type and client concentration. Revenues include revenue from services as well as reimbursable expensesand other revenues, which primarily consist of travel and entertainment costs that are chargeable to clients.Revenues by Service OfferingSoftware development includes software product development, custom application development services and enterprise application platforms services, andrepresents our core competency and a substantial majority of our business. The following table sets forth revenues by service offering by amount and as apercentage of our revenues for the periods indicated: Year Ended December 31, 2015 2014 2013Software development$644,732 70.6% $504,590 69.1% $374,426 67.4%Application testing services174,259 19.1 140,363 19.2 109,222 19.7Application maintenance and support70,551 7.7 58,840 8.1 45,971 8.3Infrastructure services11,311 1.2 14,198 1.9 14,433 2.6Licensing3,764 0.4 3,626 0.5 3,439 0.6Reimbursable expenses and other revenues9,511 1.0 8,410 1.2 7,626 1.4Revenues$914,128 100.0% $730,027 100.0% $555,117 100.0%32Table of ContentsRevenues by VerticalWe analyze our revenue by separating our clients into five main industry sectors or verticals as detailed in the following table. Also, we serve clients inother industries such as oil and gas, telecommunications, retail, insurance and several others, which are currently reported in aggregate under EmergingVerticals. The following table sets forth revenues by vertical by amount and as a percentage of our revenues for the periods indicated: Year Ended December 31, 2015 2014 2013Financial Services$248,526 27.2% $215,425 29.5% $156,340 28.2%Travel and Consumer215,303 23.6 157,756 21.6 117,248 21.1Software & Hi-Tech192,989 21.1 157,944 21.6 134,970 24.3Media & Entertainment120,616 13.2 91,726 12.6 75,677 13.6Life Sciences and Healthcare73,327 8.0 42,428 5.8 14,079 2.5Emerging Verticals53,856 5.9 56,338 7.7 49,177 8.9Reimbursable expenses and other revenues9,511 1.0 8,410 1.2 7,626 1.4Revenues$914,128 100.0% $730,027 100.0% $555,117 100.0%Revenues by Client LocationOur revenues are sourced from four geographic markets: North America, Europe, CIS and APAC, which we established as a new geographic market in2014 as a result of an acquisition. We present and discuss our revenues by client location based on the location of the specific client site that we serve,irrespective of the location of the headquarters of the client or the location of the delivery center where the work is performed. Revenue by client location isdifferent from the revenue by reportable segment in our consolidated financial statements included elsewhere in this annual report. Segments are not based onthe geographic location of the clients but are rather based on the geography of the management responsible for a particular client regardless of the client’sphysical location. The following table sets forth revenues by client location by amount and as a percentage of our revenues for the periods indicated: Year Ended December 31, 2015 2014 2013North America$485,075 53.1% $367,498 50.4% $281,738 50.8%Europe352,489 38.6 284,853 39.0 200,137 36.1United Kingdom164,301 18.0 141,366 19.4 108,892 19.6Switzerland111,353 12.2 87,111 11.9 51,941 9.4Other76,835 8.4 56,376 7.7 39,304 7.1CIS43,043 4.7 55,807 7.6 65,616 11.7Russia36,506 4.0 48,945 6.7 53,328 9.6Other6,537 0.7 6,862 0.9 12,288 2.1APAC24,010 2.6 13,459 1.8 — —Reimbursable expenses and other revenues9,511 1.0 8,410 1.2 7,626 1.4Revenues$914,128 100.0% $730,027 100.0% $555,117 100.0%Revenues by Contract TypeOur services are performed under both time-and-material and fixed-price arrangements. Our engagement models depend on the type of servicesprovided to a client, the mix and locations of professionals involved and the business outcomes our clients are looking to achieve. Historically, the vastmajority of our revenues have been generated under time-and-material contracts. Under time-and-material contracts, we are compensated for actual timeincurred by our IT professionals at negotiated hourly, daily or monthly rates. Fixed-price contracts require us to perform services throughout the contractualperiod and we are paid in installments on pre-agreed intervals. We expect time-and-material arrangements to continue to comprise the majority of ourrevenues in the future.33Table of ContentsThe following table sets forth revenues by contract type by amount and as a percentage of our revenues for the periods indicated: Year Ended December 31, 2015 2014 2013Time-and-material$784,153 85.8% $618,725 84.7% $456,938 82.3%Fixed-price116,700 12.8 99,266 13.6 87,114 15.7Licensing3,764 0.4 3,626 0.5 3,439 0.6Reimbursable expenses and other revenues9,511 1.0 8,410 1.2 7,626 1.4Revenues$914,128 100.0% $730,027 100.0% $555,117 100.0%Revenues by Client ConcentrationWe have grown our revenues from our clients by continually expanding the scope and size of our engagements, and we have grown our key client basethrough internal business development efforts and several strategic acquisitions.Our focus on delivering quality to our clients is reflected by an average of 95.1% and 84.3% of our revenues in 2015 coming from clients that had usedour services for at least one and two years, respectively. In addition, we have significantly grown the size of existing accounts including growth in our topfive and top ten clients. The following table sets forth revenues contributed by our top one, top five and top ten clients by amount and as a percentage of ourrevenues for the periods indicated: Year Ended December 31, 2015 2014 2013Top client$129,818 14.2% $97,639 13.4% $53,136 9.6%Top five clients298,063 32.6 239,396 32.8 169,987 30.6Top ten clients400,250 43.8 320,126 43.9 234,955 42.3Operating ExpensesCost of Revenues (Exclusive of Depreciation and Amortization)The principal components of our cost of revenues (exclusive of depreciation and amortization) are salaries, employee benefits, stock compensationexpense, travel costs and subcontractor fees for IT professionals and subcontractors that are assigned to client projects. Salaries and other compensationexpenses of our IT professionals are reported as cost of revenue regardless of whether the employees are actually performing client services during a givenperiod.We manage the utilization levels of our professionals through hiring and training high-performing IT professionals and efficient staffing of projects.Our staff utilization also depends on the general economy and its effect on our clients and their business decisions regarding the use of our services. Some ofour IT professionals are specifically hired and trained to work for specific clients or on specific projects, and some of our offshore development centers arededicated to specific clients or projects.Selling, General and Administrative ExpensesSelling, general and administrative expenses represent expenses associated with promoting and selling our services and general administrativefunctions of our business. These expenses include senior management, administrative personnel and sales and marketing personnel salaries; stockcompensation expense, related fringe benefits, commissions and travel costs for those employees; legal and audit expenses, insurance, operating leaseexpenses, and the cost of advertising and other promotional activities. In addition, we pay a membership fee of 1% of revenues collected in Belarus to theadministrative organization of the Belarus Hi-Tech Park.Our selling, general and administrative expenses have increased primarily as a result of our expanding operations, acquisitions, and the hiring of anumber of senior managers to support our growth. We expect our selling, general and administrative expenses to continue to increase in absolute terms as ourbusiness expands but will generally remain steady or slightly decrease as a percentage of our revenues.34Table of ContentsProvision for Income TaxesDetermining the consolidated provision for income tax expense, deferred income tax assets and liabilities and related valuation allowance, if any,involves judgment. As a global company, we are required to calculate and provide for income taxes in each of the jurisdictions in which we operate. During2015, 2014 and 2013, we had $113.8 million, $94.2 million, $69.8 million, respectively, in income before provision for income taxes attributed to ourforeign jurisdictions. The statutory tax rate in our foreign jurisdictions is lower than the statutory U.S. tax rate. Additionally, we have secured special taxbenefits in Belarus as described below. As a result, our provision for income taxes is low in comparison to income before taxes because of the benefit receivedfrom increased income earned in low tax jurisdictions. The foreign tax rate differential represents this significant reduction. Changes in the geographic mix orestimated level of annual pre-tax income can also affect our overall effective income tax rate.Our provision for income taxes also includes the impact of provisions established for uncertain income tax positions, as well as the related net interest.Tax exposures can involve complex issues and may require an extended period to resolve. Although we believe we have adequately reserved for ouruncertain tax positions, we cannot assure you that the final tax outcome of these matters will not be different from our current estimates. We adjust thesereserves in light of changing facts and circumstances, such as the closing of a tax audit, statute of limitation lapse or the refinement of an estimate. To theextent that the final tax outcome of these matters differs from the amounts recorded, such differences will impact the provision for income taxes in the periodin which such determination is made.Our subsidiary in Belarus is a member of the Belarus Hi-Tech Park, in which member technology companies are 100% exempt from the currentBelarusian income tax rate of 18%. The “On High-Technologies Park” Decree, which created the Belarus Hi-Tech Park, is in effect for a period of 15 yearsfrom July 1, 2006.2015 Compared to 2014During 2015, our revenues grew 25.2% over 2014, from $730.0 million to a record $914.1 million. The increase was attributable to a combination offactors, including deeper penetration to existing customers and attainment of new customers, both organically and through acquisitions. In 2015, revenuefrom new customers was $45.7 million, primarily resulting from our acquisitions in 2015, and does not include new clients that are affiliates of existingcustomers whom we consider an expansion of existing business. In addition, total revenues in 2015 and 2014 included $9.5 million and $8.4 million ofreimbursable expenses and other revenues, respectively, which increased by 13.1% in 2015 as compared to 2014, but remained relatively flat as a percentageof revenues.During the year ended December 31, 2015, revenues in our largest geography, North America, grew $117.6 million, or 32.0%, as compared with theyear ended December 31, 2014. Expressed as a percentage of consolidated revenues, the North America geography accounted for 53.1% in 2015, whichrepresented an increase of 2.7% over 2014. The increase was primarily a result of growth in business from several of our top clients as well as new revenuefrom the acquisition of NavigationArts.Revenues from all major verticals in North America grew during the year ended December 31, 2015 as compared with the year ended December 31,2014. The largest contributor to revenue growth in North America, was Travel and Consumer vertical, which increased $32.9 million, or 48.6%, as comparedwith the year ended December 31, 2014. The increase in this vertical was primarily driven by the rapid expansion of our strategic relationship with a largeretail chain, a relationship we acquired in 2012.Our Life Sciences and Healthcare vertical in North America continued its impressive growth since we acquired new clients in the healthcare, insuranceand life sciences industries in one of our 2014 acquisitions and created synergies with existing customers in those markets. During the year endedDecember 31, 2015 combined revenue growth from customers in this vertical accounted for $29.0 million, representing the largest percentage growth of allNorth America's verticals at 75.9% growth over prior year.During the year ended December 31, 2015, revenues from the Media and Entertainment vertical in North America increased by $25.3 million, or36.2%, as compared with the year ended December 31, 2014. The growth in this vertical in 2015 was attributable to resumed growth in revenues from certainlong-time major customers who had decreased demand for our services in prior years.North America’s largest vertical, Software and Hi-Tech, experienced growth of $24.5 million or 17.2% during the year ended December 31, 2015 ascompared with the year ended December 31, 2014.35Table of ContentsDuring the year ended December 31, 2015, our Financial Services vertical remained our dominant vertical in the European geography. In 2015revenues from the Financial Services vertical increased by $28.3 million, or 19.0%, respectively, over the corresponding period of 2014. Continued solidperformance of the Financial Services vertical was attributable to an increased demand for our services and ongoing relationships with existing top customerslocated in Europe. We experienced increased business from our top customer located in Switzerland, who was responsible for majority of the revenue growthin the Financial Services vertical during 2015 as compared with the year ended December 31, 2014. Furthermore, we continue to see growing demand for ourservices from European-based customers within the Travel and Consumer vertical. During the year ended December 31, 2015 revenues from this verticalincreased by $24.0 million as compared with the year ended December 31, 2014 and accounted for 35.5% of total growth in this geography during periodindicated. Europe’s Software and Hi-Tech vertical experienced a significant increase of 66.5% in 2015 compared to 2014, in part due to business from a newsignificant customer in Germany engaged in 2015.Revenues in the CIS geography showed a decrease of $12.8 million or 22.9% on a year-to-date bases compared to 2014. The decrease in revenues wasprimarily attributable to a decline in the Financial Services vertical, which is significantly impacted by the microeconomic situation in the region.Additionally, significant foreign currency fluctuations in Russia and CIS countries had a material negative impact on the revenues from those locations.Cost of Revenues (Exclusive of Depreciation and Amortization)During the years ended December 31, 2015 and 2014, cost of revenues (exclusive of depreciation and amortization) was $566.9 million and $456.5million, respectively, representing an increase of 24.2% for the year ended December 31, 2015 over the corresponding period of 2014, mainly due to anincrease in headcount of revenue producing personnel. As a percentage of revenues, cost of revenues (exclusive of depreciation and amortization), decreased0.5% over the corresponding period of 2014, to 62.0% of consolidated revenues.The increase in cost of revenues (exclusive of depreciation and amortization) in 2015 was primarily driven by an increase $107.1 million incompensation costs for revenue producing personnel, including an increase in stock-based compensation expense of $5.0 million. The increases in all ofthese costs were the result of organic increase in headcount as well as personnel additions from acquisitions.Selling, General and Administrative ExpensesWe continued to invest in key areas including sales, infrastructure, industry expertise, and other functions supporting global operations and ourgrowth. During the year ended December 31, 2015, selling, general and administrative expenses totaled $222.8 million, representing an increase of 36.1%from $163.7 million during 2014. As a percentage of revenue, selling, general and administrative expenses represent 24.4% of consolidated revenues, anincrease of 2.0% over last year. The increase in selling, general and administrative expenses in 2015 was primarily driven by a $48.5 million increase inpersonnel-related costs, which includes salaries and stock-based compensation expenses. Of these personnel-related costs, stock-based compensationexpenses increased $16.2 million during the year ended December 31, 2015. Our selling, general and administrative expenses have increased primarily as aresult of our expanding operations, acquisitions, and the hiring of a number of senior managers to support our growth.In addition, we have issued stock to the sellers and/or personnel in connection with our business acquisitions and have been recognizing stock-basedcompensation expense in the periods after the closing of these acquisitions as part of the selling, general and administrative expenses. Such stock basedcompensation expenses related to acquisitions comprised 58.2% of total selling, general and administrative stock-based compensation expense for the yearended December 31, 2015 compared to the same period in 2014.Depreciation and Amortization ExpenseDepreciation and amortization expense was $17.4 million in 2015, representing a decrease of $0.1 million over 2014. Expressed as a percentage ofrevenues, depreciation and amortization expense totaled 1.9% and decreased 0.5% compared with 2014. Expense includes amortization of acquiredintangible assets, all of which have finite useful lives.Other Operating Expenses, NetDuring the year ended December 31, 2015, other operating expenses decreased $2.8 million since 2014 to $1.1 million.36Table of ContentsInterest and Other Income, NetNet interest and other income was $4.7 million in 2015, representing a slight decrease of 0.8% from $4.8 million received in 2014. The incomeconsists primarily of interest received on cash accounts in Belarus and, to a lesser extent, interest earned on employee housing loans.Provision for Income TaxesThe Company’s provision for income taxes was $21.6 million in 2015 and $17.3 million in 2014. The effective tax rate increased to 20.4% in 2015from 19.9% in 2014 primarily due to changes in the geographic mix of our current year earnings and discrete tax benefits recorded in 2014 as well as due toelimination of certain income tax holiday benefits in Hungary in 2015.2014 Compared to 2013During 2014, our revenues grew in excess of 30.0% over 2013, from $555.1 million to a record $730.0 million. The increase was attributable to acombination of factors, including deeper penetration to existing customers and attainment of new customers, both organically and through acquisitions. In2014, revenue from new customers was $49.7 million, primarily resulting from our 2014 acquisitions, and does not include new clients that are affiliates ofexisting customers. Our 2014 acquisitions increased our total revenues by $39.8 million, however, some of the acquired clients are affiliated with our existingclients and, therefore, we consider them an expansion of existing business. In addition, total revenues in 2014 and 2013 included $8.4 million and $7.6million of reimbursable expenses and other revenues, respectively, which increased by 10.3% in 2014 as compared to 2013, but remained relatively flat as apercentage of revenues.During the year ended December 31, 2014, revenues in our largest geography, North America, grew $85.8 million, or 30.4%, as compared with the yearended December 31, 2013. Expressed as a percentage of consolidated revenues, the North America geography accounted for 50.4% in 2014, whichrepresented a decrease of 0.4% over 2013. The slight decrease was primarily a result of accelerated growth in the European geography.Revenues from all verticals in North America grew during the year ended December 31, 2014 as compared with the year ended December 31, 2013.The largest growth was in North America’s Other vertical due to acquiring new clients in the healthcare, insurance and life sciences industries through a 2014acquisition as well as creating synergies with existing customers in those markets. During the year ended December 31, 2014 combined revenue growth fromcustomers in the Other vertical accounted for $33.8 million, representing a 94.3%, growth over prior year.Our Travel and Consumer vertical in North America geography increased by $15.0 million, or 28.4%, as compared with the year ended December 31,2013. The increase in this vertical was primarily driven by the rapid expansion of our strategic relationship with a large retail chain, a relationship weacquired in 2012. During the year ended December 31, 2014, revenues from the Business Information and Media vertical in North America increased by$12.5 million, or 21.8%, as compared with the year ended December 31, 2013. The growth in this vertical in 2014 was attributable to resumed growth inrevenues from certain long-time major customers who had decreased demand for our services in 2013. North America’s largest vertical, ISVs and Technology,experienced growth of $19.8 million or 16.2% during the year ended December 31, 2014 as compared with the year ended December 31, 2013.During the year ended December 31, 2014, our Banking and Financial Services vertical remained our dominant vertical in Europe geography. In 2014revenues from the Banking and Financial Services vertical increased by $42.5 million, or 39.9%, respectively, over the corresponding periods of 2013.Continued solid performance of the Banking and Financial Services vertical was attributable to an increased demand for our services and ongoingrelationships with existing top customers located in Europe. We experienced increased business from our top customer located in Switzerland, nearlydoubling the revenue during 2014 as compared with the year ended December 31, 2013. Furthermore, we continue to see growing demand for our servicesfrom European-based customers within the Travel and Consumer and Business Information and Media verticals. During the year ended December 31, 2014combined revenues from these verticals increased by $30.9 million, respectively, year ended December 31, 2014 and accounted for 36.4% of total growth inthis geography during periods indicated. Europe’s Other vertical grew 65.0% or $8.0 million in 2014, mainly due to addition of new clients through our 2014acquisitions.37Table of ContentsRevenues in the CIS geography showed a decrease of $9.8 million or 14.9% on a year-to-date bases compared to 2013. The decrease in revenues wasprimarily attributable to budgetary delays with certain customers located in Russia, as well as a decline in business from one of our largest customers inKazakhstan. Additionally, significant foreign currency fluctuations in Russia and CIS countries had a material negative impact on the revenues from thoselocations.Cost of Revenues (Exclusive of Depreciation and Amortization)During the years ended December 31, 2014 and 2013, cost of revenues (exclusive of depreciation and amortization) was $456.5 million and $347.7million, respectively, representing an increase of 31.3% for the year ended December 31, 2014 over the corresponding period of 2013, mainly due to increasein hiring of revenue generating professionals. As a percentage of revenues, cost of revenues (exclusive of depreciation and amortization), decreased 0.1%over the corresponding period of 2013, to 62.5% of consolidated revenues.The increase in cost of revenues (exclusive of depreciation and amortization) in 2014 was primarily driven by a $107.9 million increase in personnel-related costs, the main component of cost of revenue, as well as an increase in stock-based compensation expense for our revenue generating IT professionalsof $3.8 million. The increases in all of these costs were the result of organic increase in headcount as well as personnel additions from acquisitions.Selling, General and Administrative ExpensesWe continued to invest in key areas, including sales, infrastructure, industry expertise, and other functions supporting global operations.During the year ended December 31, 2014, selling, general and administrative expenses totaled $163.7 million, representing an increase of 40.5% from$116.5 million during 2013. As a percentage of revenue, selling, general and administrative expenses represent 22.4% of consolidated revenues, an increaseof 1.4% over last year. The increase in selling, general and administrative expenses in 2014 was primarily driven by a $30.2 million increase in totalpersonnel-related costs, which include stock based compensation relating to the non-production personnel impact of the four 2014 acquisitions. During theyear ended December 31, 2014, we incurred $13.4 million of selling, general and administrative costs related to our 2014 acquisitions, including $4.1million of stock-based compensation expense, which resulted in a 1.8% increase in selling, general and administrative expenses expressed as a percentage ofrevenues.Depreciation and Amortization ExpenseDepreciation and amortization expense was $17.5 million in 2014, representing an increase of $2.4 million over 2013. Expressed as a percentage ofrevenues, depreciation and amortization expense totaled 2.4% and remained at the same level compared with 2013.Goodwill Impairment LossWe performed an annual goodwill impairment test as of October 31, 2014 in accordance with prescribed guidance. In assessing impairment bothqualitatively and quantitatively based on the total of the expected future discounted cash flows directly related to the reporting unit, the Companydetermined that the fair value of the Russia reporting unit was below the carrying value of the reporting unit. The Company completed the second step of thegoodwill impairment test, resulting in an impairment charge of $2.2 million as of December 31, 2014. All assets that related to the Russia segment, excludinggoodwill and including any unrecognized intangible assets, were assessed by management and deemed to not be impaired.Other Operating Expenses, NetDuring the year ended December 31, 2014, we recorded a $2.6 million write-down in prepaid assets and a $1.1 million write-down of capitalized costsrelated to the construction of our corporate facilities in Belarus. Please see Note 16 in the notes to our consolidated financial statements in the 2014 AnnualReport on Form 10-K for further information.Interest and Other Income, NetNet interest and other income was $4.8 million in 2014, representing an increase of 55.0% from $3.1 million received in 2013. The increase wasprimarily driven by interest received on cash accounts in Belarus and, to a lesser extent, interest earned on employee housing loans.38Table of ContentsProvision for Income TaxesThe Company’s effective tax rate was 19.9% and 19.2% in 2014 and 2013, respectively. The primary factors that caused this increase in the rate for theabove-mentioned periods are: (a) the four acquisitions completed during 2014, which added other tax jurisdictions into the Company’s worldwide effectivetax rate analysis; (b) a larger portion of the Company’s pre-tax profits attributable to tax jurisdictions with relatively higher effective tax rates (as compared toeffective tax rates within the CIS region) were seen in 2014 and (c) a relative shift in offshore services that were performed in Belarus to other countries in theCIS region (specifically Ukraine and, to a lesser extent, Russia). Both of those locations have higher income tax rates than Belarus, where the Company iscurrently entitled to a 100% exemption from Belarusian income tax.Results by Business SegmentOur operations consist of four reportable segments: North America, Europe, Russia and Other. The segments represent components of EPAM for whichseparate financial information is available that is used on a regular basis by our chief executive officer, who is also our chief operating decision maker(“CODM”), in determining how to allocate resources and evaluate performance. This determination is based on the unique business practices and marketspecifics of each region and that each region engages in business activities from which it earns revenues and incurs expenses. Our reportable segments arebased on managerial responsibility for a particular client. Because managerial responsibility for a particular client relationship generally correlates with theclient’s geographic location, there is a high degree of similarity between client locations and the geographic boundaries of our reportable segments. In somespecific cases, however, managerial responsibility for a particular client is assigned to a management team in another region, usually based on the strength ofthe relationship between client executives and particular members of our senior management team. In a case like this, the client’s activity would be reportedthrough the management team’s reportable segment. Our CODM evaluates the Company’s performance and allocates resources based on segment revenuesand operating profit.Segment operating profit is defined as income from operations before unallocated costs. Generally, operating expenses for each operating segmenthave similar characteristics and are subject to similar factors, pressures and challenges. Expenses included in segment operating profit consist principally ofdirect selling and delivery costs as well as an allocation of certain shared services expenses. We use globally integrated support organizations to realizeeconomies of scale and efficient use of resources. As a result, a majority of our expenses is shared by all segments. These shared expenses include Delivery,Recruitment and Development, Sales and Marketing, and support functions such as IT, Finance, Legal, and Human Resources. Generally, shared expenses areallocated based on measurable drivers of expense, e.g., recorded hours or headcount. However, certain expenses are not specifically allocated to specificsegments, as management does not believe it is practical to allocate such costs to individual segments because they are not directly attributable to anyspecific segment. Further, stock based compensation expense is not allocated to individual segments in internal management reports used by the chiefoperating decision maker. Accordingly, these expenses are separately disclosed as “unallocated” and adjusted only against our total income from operations.Revenues from external clients and segment operating profit, before unallocated expenses, for the North America, Europe, Russia and Other reportablesegments for the fiscal years ended December 31, 2015, 2014 and 2013 were as follows: Year Ended December 31, 2015 2014 2013 (in thousands) Total segment revenues: North America$471,603 $374,509 $284,636Europe400,460 299,279 204,150Russia37,992 50,663 55,764Other4,911 5,552 10,493Total segment revenues$914,966 $730,003 $555,043Segment operating profit: North America$112,312 $90,616 $66,814Europe68,717 50,189 34,573Russia5,198 7,034 7,077Other(94) (3,220) 844Total segment operating profit$186,133 $144,619 $109,30839Table of Contents2015 Compared to 2014North America SegmentDuring the years ended December 31, 2015 and 2014 revenues from our North America segment were 51.5% and 51.3% of total revenues representingan increase of $97.1 million, or 25.9%, over the corresponding period in 2014. The North America segment’s operating profits increased by $21.7 million, or23.9%, as compared to the same period of 2014, to $112.3 million net operating profit. North America remains our most profitable segment with operatingprofit composing 23.8% of revenues.The increase in revenues during the year ended December 31, 2015, was primarily driven by continued expansion of existing top customerrelationships, as well as our recent acquisitions. Operating results of the North America operating segment benefited from our 2014 acquisitions in the LifeSciences and Healthcare industry as well as acquisitions of NavigationArts and AGS during 2015.Europe SegmentDuring the years ended December 31, 2015 and 2014, revenues from our Europe segment were 43.8% and 41.0% of total segment revenues,respectively, representing an increase of $101.2 million, or 33.8%, in 2015 over the 2014 results. During 2015, the Europe segment’s operating profitsincreased by $18.5 million, or 36.9%, as compared to the corresponding period of 2014, to $68.7 million net profit from the segment’s operations.Europe continues to be a growing segment in our portfolio as our business model continues to gain considerable traction with European-based clientsprimarily in the Financial Services and Travel and Consumer verticals. Furthermore, our Europe segment benefited from the continued growth of Jointech, acompany we acquired in 2014, with locations in South-East Asia. This extended reach into a new geography created additional options for our existingcustomers within the Financial Services vertical, particularly in the areas of investment banking and wealth and asset management. We expect that our newand existing customers will use our services in that fast-growing region resulting in possible revenue and operating profit increases to the Europe segment.Russia and Other SegmentsDuring the years ended December 31, 2015, revenues from the Russia and the Other operating segments decreased by $12.7 million and $0.6 million,respectively, over corresponding period of 2014. Operating profits of the Russia segment decreased $1.8 million and the operating losses of the Othersegment decreased $3.1 million when compared with the operating profits/ (losses) of these segments in the corresponding period of 2014.Revenues and operating profits in the Russia and Other segments are subject to volatility resulting from revenue recognition delays related tofinalizing budgets for certain arrangements with major customers in those segments causing instability between revenues and associated profits.Additionally, strong foreign currency fluctuations in 2014 further destabilized the economic situation in the regions that are included in these segments andnegatively impacted our business in Russia and CIS countries during 2015. Since 2014, the United States and the European Union have imposed sanctionstargeting Russian government and government-controlled interests and certain government officials. While this has not directly impacted our business inRussia, the sanctions aggravated the overall Russian economy and negatively influenced the business of our major clients in the region, decreasing demandfor our services.2014 Compared to 2013North America SegmentDuring the years ended December 31, 2014 and 2013, revenues from our North America segment were 51.3% and 51.3% of total revenues representingan increase of $89.9 million, or 31.6%, over the corresponding period in 2013. The North America segment’s operating profits increased by $23.8 million, or35.6%, as compared to the same period of 2013, to $90.6 million net operating profit.The increase in revenues during the year ended December 31, 2014, was primarily driven by continued expansion of existing customer relationships,as well, as our recent acquisitions. The largest growth was in the Other vertical due to acquiring new clients in the healthcare, insurance and life sciencesindustries through a 2014 acquisition as well as creating synergies with existing customers in those markets. During the year ended December 31, 2014,combined revenue growth from customers in the Other vertical accounted for $34.8 million, representing a 97.4% growth over prior year.40Table of ContentsAll other verticals in the North America segment experienced revenue growth and increases in operating profit in 2014 as compared to 2013, mainlydue to increased business from our long-term clients with some contribution from the clients acquired in connection with acquisitions. The largest vertical,the ISVs and Technology, grew revenues by $22.1 million, or 18.6%, in 2014 as compared to the corresponding period of 2013. Revenues from our Traveland Consumer vertical in 2014 increased by $14.6 million, or 26.7%, as compared to the corresponding period in 2013. Banking and Financial Services hadan increase in revenue of $5.9 million or 45.4%, and operating profit increased by 104.9% in this vertical in 2014 compared with the year ended December31, 2013. Business Information and Media grew in revenue $12.5 million or 20% for the year ended December 31, 2014 as compared to the same period in2013.Europe SegmentDuring the years ended December 31, 2014 and 2013, revenues from our Europe segment were 41.0% and 36.8% of total segment revenues,respectively, representing an increase of $95.1 million, or 46.6%, in 2014 over the 2013 results. During 2014, the Europe segment’s operating profitsincreased by $15.6 million, or 45.2%, as compared to the corresponding period of 2013, to $50.2 million net profit from the segment’s operations.Europe continues to be a rapidly growing segment in our portfolio, given our nearshore delivery capabilities, and our value proposition in deliveringquality software engineering solutions and services. Our business model continues to gain considerable traction with European-based clients primarily in theBanking and Financial Services and Travel and Consumer verticals. Furthermore, our Europe segment benefited from the acquisition of Jointech, a companywith locations in South-East Asia, which created a new value proposition for our existing customers within the Banking and Financial Services vertical,particularly in the areas of investment banking, wealth and asset management, and extended our reach into new geography. We expect that many of our newand existing customers in other business verticals will use our services in that fast-growing region resulting in possible revenue and operating profit increasesto the Europe segment.Russia and Other SegmentsDuring the years ended December 31, 2014, revenues from the Russia and Other operating segments decreased by $5.1 million and $4.9 million,respectively, over corresponding period of 2013. Operating profits of the Russia segment showed no changes when compared with the operating profits ofthis segment in 2013, while profits of Other segments decreased $4.1 million compared to 2013.Revenues and operating profits in the Russia and Other segments are subject to volatility resulting from revenue recognition delays related tofinalizing budgets for certain arrangements with major customers in those segments. As a result, we recorded the cost related to the performance of services in2014 with no associated revenues recognized in the period that services were rendered. These business arrangements were further exacerbated by strongforeign currency fluctuations in the fourth quarter of 2014, negatively impacting our business in Russia and CIS countries.41Table of ContentsLiquidity and Capital ResourcesCapital ResourcesAt December 31, 2015, our principal sources of liquidity were cash and cash equivalents totaling $199.4 million, a one-year time deposit maturing inMarch 2016 in the amount of $30.0 million and $65.0 million of available borrowings under our revolving line of credit. As of that date, $181.9 million ofour total cash and cash equivalents was held outside the United States. Of this amount, $79.3 million was held in U.S. dollar denominated accounts inBelarus, including deposits that accrued interest at an average interest rate of 4.8% during 2015.In 2014 we repatriated $75.8 million U.S. dollars from Belarus into our Cyprus entity’s bank in the United Kingdom. In March 2015, $30.0 million ofthis amount has been placed into a one-year interest bearing time deposit within the same bank. As of December 31, 2015, the remaining unrestricted balanceof $28.7 million U.S. dollars is kept in a savings account in our Cyprus entity’s bank in the United Kingdom.Our subsidiaries in the CIS or APAC regions do not maintain significant balances denominated in currencies other than U.S. dollars.The cash and cash equivalents held at locations outside of the United States are for future operating expenses and we have no intention of repatriatingthose funds. However, as a result of various factors such as any global or regional instability or changes in tax laws in place for a specific time period, we maylater decide to repatriate some or all of our funds to the United States. If we decide to remit funds to the United States in the form of dividends, $212.1 millionwould be subject to foreign withholding taxes, of which $184.0 million would also be subject to U.S. corporate income tax. We believe that our availablecash and cash equivalents held in the United States and cash flow to be generated from domestic operations will be adequate to satisfy our domestic liquidityneeds in the foreseeable future. Our ability to expand and grow our business in accordance with current plans and to meet our long-term capital requirementswill depend on many factors, including the rate, if any, at which our cash flows increase, our continued intent not to repatriate earnings from outside of theU.S. and the availability of public and private debt and equity financing. To the extent we pursue one or more significant strategic acquisitions, we may incurdebt or sell additional equity to finance those acquisitions.On September 12, 2014, we established a revolving credit facility with PNC Bank, National Association; Santander Bank, N.A; and Silicon ValleyBank. This credit facility consists of a $100.0 million revolving line of credit, with a maturity date of September 12, 2019. There is potential to increase thecredit facility up to $200.0 million if certain conditions are met. Borrowings under the 2014 Credit Facility may be denominated in United States dollars or,up to a maximum of $50.0 million in British pounds sterling, Canadian dollars, euros or Swiss francs (or other currencies as may be approved by the lenders).At December 31, 2015, we had outstanding debt of $35.0 million with the balance of the credit limit of $65.0 million remaining available for use.Cash FlowsThe following table summarizes our cash flows for the periods indicated: Year EndedDecember 31, 2015 2014 2013 (in thousands)Consolidated Statements of Cash Flow Data: Net cash provided by operating activities$76,393 $104,874 $58,225Net cash used in investing activities(125,494) (52,929) (21,820)Net cash provided by financing activities33,764 10,347 15,501Effect of exchange rate changes on cash and cash equivalents(5,748) (10,965) (811)Net increase/(decrease) in cash and cash equivalents$(21,085) $51,327 $51,095Cash and cash equivalents, beginning of period220,534 169,207 118,112Cash and cash equivalents, end of period$199,449 $220,534 $169,20742Table of ContentsOperating ActivitiesNet cash provided by operations during the year ended December 31, 2015 decreased $28.5 million to $76.4 million, as compared to $104.9 millionnet cash provided by operations in 2014. During 2015, operating cash flows were impacted by increases in billed and unbilled accounts receivable andgreater accrued expenses, which were mostly impacted by increases in bonus compensation. During 2015 we have recorded more accounts receivable andunbilled revenue as compared to the same period in 2014. The increases in billed and unbilled receivables are consistent with our growth in revenue and themajority of unbilled receivables are current with nearly 60% recorded in December 2015 and over 90% recorded during the fourth quarter of 2015.Net cash provided by operations during the year ended December 31, 2014 increased $46.6 million to $104.9 million, as compared to $58.2 millionnet cash provided by operations in 2013. During 2014, operating cash flows benefited, in part, from our strong focus on improving working capitalefficiencies during the latter part of 2013, including focus on reducing days outstanding for our billed and unbilled receivables. This emphasis more thanoffset the higher working capital requirements associated with increased revenues, including growth in total compensation and benefits of our ITprofessionals, overhead expenses, and higher tax payments.Investing ActivitiesNet cash used in investing activities during the year ended December 31, 2015 was $125.5 million and consisted primarily of a $30.0 million interestbearing time deposit set up by our Cyprus entity in the United Kingdom in March 2015 and $76.9 million net cash used in the business combinations withNavigationArts and AGS. The cash spent on acquisitions of businesses in 2015 increased $39.8 million compared to 2014.Net cash used in investing activities during the year ended December 31, 2014 increased $31.1 million to $52.9 million as compared to $21.8 millionused in investing activities during the corresponding period of 2013. The increase was primarily attributable to $37.1 million spent on acquisitions ofbusinesses, partially offset by a net $6.2 million decrease in loans issued under the Employee Housing Program compared to the corresponding period lastyear.Financing ActivitiesNet cash provided by financing activities during the year ended December 31, 2015 was $33.8 million, a decrease of $23.4 million from the sameperiod in 2014 primarily due to payment of deferred consideration in the amount of $30 million as well as a decrease in excess tax benefit on stock-basedcompensation plans, partly offset by higher proceeds from stock option exercises.Net cash provided by financing activities during the year ended December 31, 2014 was $10.3 million, a decrease of $5.2 million from the same periodin 2013 primarily due to payment of deferred consideration in the amount of $4 million as well as a decrease in excess tax benefit on stock-basedcompensation plans, partly offset by higher proceeds from stock option exercises.Contractual Obligations and Future Capital RequirementsContractual ObligationsSet forth below is information concerning our fixed and determinable contractual obligations as of December 31, 2015. Total Less than 1Year 1-3 Years 3-5 Years More than 5Years (in thousands)Operating lease obligations$49,616 $17,606 $23,400 $5,946 $2,664Long-term debt obligation$65,000 $— $— $65,000 $— $114,616 $17,606 $23,400 $70,946 $2,664During the year ended December 31, 2015, the Company completed construction of the office building within the High Technologies Park in Minsk,Belarus, and, therefore, no future capital requirements exist related to this construction. See Note 15 in the notes to our consolidated financial statements inthis Annual Report on Form 10-K for further information.Future Capital Requirements43Table of ContentsWe believe that our existing cash and cash equivalents combined with our expected cash flow from operations will be sufficient to meet our projectedoperating and capital expenditure requirements for at least the next twelve months and that we possess the financial flexibility to execute our strategicobjectives, including the ability to make acquisitions and strategic investments in the foreseeable future. Our ability to generate cash, however, is subject toour performance, general economic conditions, industry trends and other factors. To the extent that existing cash and cash equivalents and operating cashflow are insufficient to fund our future activities and requirements, we may need to raise additional funds through public or private equity or debt financing.If we issue equity securities in order to raise additional funds, substantial dilution to existing stockholders may occur. If we raise cash through the issuance ofadditional indebtedness, we may be subject to additional contractual restrictions on our business. There is no assurance that we would be able to raiseadditional funds on favorable terms or at all.Off-Balance Sheet Commitments and ArrangementsWe do not have any obligations under guarantee contracts or other contractual arrangements other than as disclosed in Note 15 in the notes to ourconsolidated financial statements in this Annual Report on Form 10-K. We have not entered into any transactions with unconsolidated entities where wehave financial guarantees, subordinated retained interests, derivative instruments, or other contingent arrangements that expose us to material continuingrisks, contingent liabilities, or any other obligation under a variable interest in an unconsolidated entity that provides financing, liquidity, market risk, orcredit risk support to us, or engages in leasing, hedging, or research and development services with us.44Table of ContentsCritical Accounting PoliciesWe prepare our consolidated financial statements in accordance with U.S. generally accepted accounting principles (GAAP), which require us to makejudgments, estimates and assumptions that affect: (i) the reported amounts of assets and liabilities, (ii) disclosure of contingent assets and liabilities at the endof each reporting period and (iii) the reported amounts of revenues and expenses during each reporting period. We evaluate these estimates and assumptionsbased on historical experience, knowledge and assessment of current business and other conditions, and expectations regarding the future based on availableinformation and reasonable assumptions, which together form a basis for making judgments about matters not readily apparent from other sources. Since theuse of estimates is an integral component of the financial reporting process, actual results could differ from those estimates. Some of our accounting policiesrequire higher degrees of judgment than others in their application. When reviewing our audited consolidated financial statements, you should consider (i)our selection of critical accounting policies, (ii) the judgment and other uncertainties affecting the application of such policies and (iii) the sensitivity ofreported results to changes in conditions and assumptions. We consider the policies discussed below to be critical to an understanding of our consolidatedfinancial statements as their application places significant demands on the judgment of our management.An accounting policy is considered to be critical if it requires an accounting estimate to be made based on assumptions about matters that are highlyuncertain at the time the estimate is made, and if different estimates that reasonably could have been used, or changes in the accounting estimates that arereasonably likely to occur periodically, could materially impact the consolidated financial statements. We believe that the following critical accountingpolicies are the most sensitive and require more significant estimates and assumptions used in the preparation of our consolidated financial statements. Youshould read the following descriptions of critical accounting policies, judgments and estimates in conjunction with our audited consolidated financialstatements and other disclosures included in this annual report.Revenue Recognition — We recognize revenue when realized or realizable and earned, which is when the following criteria are met: persuasiveevidence of an arrangement exists; delivery has occurred; the sales price is fixed or determinable; and collectability is reasonably assured. Determiningwhether and when some of these criteria have been satisfied often involves assumptions and judgments that can have a significant impact on the timing andamount of revenue we report. If there is an uncertainty about the project completion or receipt of payment for the consulting services, revenues are deferreduntil the uncertainty is sufficiently resolved. At the time revenues are recognized, we provide for any contractual deductions and reduce revenuesaccordingly. We defer amounts billed to our clients for revenues not yet earned. Such amounts are anticipated to be recorded as revenues as services areperformed in subsequent periods. Unbilled revenues represent services provided which are billed subsequent to the period end in accordance with thecontract terms.We derive our revenues from a variety of service offerings, which represent specific competencies of our IT professionals. Contracts for these serviceshave different terms and conditions based on the scope, deliverables, and complexity of the engagement, which require management to make judgments andestimates in determining appropriate revenue recognition pattern. Fees for these contracts may be in the form of time-and-materials or fixed-pricearrangements.The majority of our revenues (85.8% of revenues in 2015, 84.7% in 2014 and 82.3% in 2013) are generated under time-and-material contracts wherebyrevenues are recognized as services are performed with the corresponding cost of providing those services reflected as cost of revenues when incurred. Themajority of such revenues are billed on an hourly, daily or monthly basis whereby actual time is charged directly to the client.Revenues from fixed-price contracts (12.8% of revenues in 2015, 13.6% in 2014 and 15.7% in 2013) are determined using the proportionalperformance method. In instances where final acceptance of the product, system, or solution is specified by the client, revenue is deferred until all acceptancecriteria have been met. In absence of a sufficient basis to measure progress towards completion, revenue is recognized upon receipt of final acceptance fromthe client. In order to estimate the amount of revenue for the period under the proportional performance method, we determine the percentage of actual laborhours incurred as compared to estimated total labor hours and apply that percentage to the consideration allocated to the deliverable. The complexity of theestimation process and factors relating to the assumptions, risks and uncertainties inherent with the application of the proportional performance method ofaccounting affects the amounts of revenues and related expenses reported in our consolidated financial statements. A number of internal and external factorscan affect such estimates, including labor hours and specification and testing requirement changes. The cumulative impact of any revision in estimates isreflected in the financial reporting period in which the change in estimate becomes known. No significant revisions occurred in each of the three years endedDecember 31, 2015, 2014 and 2013. Our fixed price contracts are generally recognized over a period of 12 months or less.We report gross reimbursable “out-of-pocket” expenses incurred as both revenues and cost of revenues in the consolidated statements of income andcomprehensive income as these expenses are billable to our clients.45Table of ContentsBusiness Combinations — We account for our business combinations using the acquisition accounting method, which requires us to determine thefair value of net assets acquired and the related goodwill and other intangible assets in accordance with the FASB ASC Topic 805, “Business Combinations.”We identify and attribute fair values and estimated lives to the intangible assets acquired and allocate the total cost of an acquisition to the underlying netassets based on their respective estimated fair values. Determining the fair value of assets acquired and liabilities assumed requires management’s judgmentand involves the use of significant estimates, including projections of future cash inflows and outflows, discount rates, asset lives and market multiples. Thereare different valuation models for each component, the selection of which requires considerable judgment. These determinations will affect the amount ofamortization expense recognized in future periods. We base our fair value estimates on assumptions we believe are reasonable, but recognize that theassumptions are inherently uncertain.If initial accounting for the business combination has not been completed by the end of the reporting period in which the business combination occurs,provisional amounts are reported for which the accounting is incomplete, with retrospective adjustment made to such provisional amounts during themeasurement period to present new information about facts and circumstances that existed as of the acquisition date. Once the measurement period ends, andin no case beyond one year from the acquisition date, revisions of the accounting for the business combination are recorded in earnings.All acquisition-related costs, other than the costs to issue debt or equity securities, are accounted for as expenses in the period in which they areincurred. Changes in fair value of contingent consideration arrangements that are not measurement period adjustments are recognized in earnings. Paymentsto settle contingent consideration, if any, are reflected in cash flows from financing activities and the changes in fair value are reflected in cash flows fromoperating activities in our consolidated statements of cash flows.The acquired assets typically consist of customer relationships, trade names, non-competition agreements, and workforce and as a result, a substantialportion of the purchase price is allocated to goodwill and other intangible assets.Goodwill and Other Intangible Assets — Goodwill and intangible assets that have indefinite useful lives are treated consistently with FASB ASC350, “Intangibles - Goodwill and Other.” We do not have any intangible assets with indefinite useful lives.We assess goodwill for impairment annually, and more frequently in certain circumstances. Events or circumstances that might require impairmenttesting of goodwill and other intangible assets include the loss of a significant client, the identification of other impaired assets within a reporting unit, lossof key personnel, the disposition of a significant portion of a reporting unit, significant decline in stock price or a significant adverse change in businessclimate or regulations. We initially perform a qualitative assessment of goodwill to test for impairment indicators. After applying the qualitative assessment,if we conclude that it is not more likely than not that the fair value of goodwill is less than the carrying amount; the two-step goodwill impairment test is notrequired.If we determine that it is more likely than not that the carrying amount exceeds the fair value, we perform a quantitative impairment test. If an indicatorof impairment is identified, the implied fair value of the reporting unit’s goodwill is compared to its carrying amount, and the impairment loss is measured bythe excess of the carrying value over the fair value. The fair values are estimated using a combination of the income approach, which incorporates the use ofthe discounted cash flow method, and the market approach, which incorporates the use of earnings multiples based on market data. These valuations areconsidered Level 3 measurements under FASB ASC Topic 820. We utilize estimates to determine the fair value of the reporting units such as future cashflows, growth rates, capital requirements, effective tax rates and projected margins, among other factors. Estimates utilized in the future evaluations ofgoodwill for impairment could differ from estimates used in the current period calculations. We are also required to assess the goodwill of its reporting unitsfor impairment between annual assessment dates as events or circumstances dictate. Based on our assessment, these operating segments are not at risk forimpairment.Intangible assets that have finite useful lives are amortized over their estimated useful lives on a straight-line basis. When facts and circumstancesindicate potential impairment of amortizable intangible assets, we evaluate the recoverability of the asset’s carrying value, using estimates of future cashflows that utilize a discount rate determined by the management to be commensurate with the risk inherent in our business model over the remaining assetlife. The estimates of future cash flows attributable to intangible assets require significant judgment based on our historical and anticipated results. Anyimpairment loss is measured by the excess of carrying value over fair value. All of our intangible assets have finite lives.Effective in the fourth quarter of 2013, we changed the annual goodwill impairment assessment date for all of our reporting units from December 31st toOctober 31st, which represented a voluntary change in the annual goodwill impairment testing date. 46Table of ContentsIncome Taxes — The provision for income taxes includes federal, state, local and foreign taxes. Deferred tax assets and liabilities are recognized forthe estimated future tax consequences of temporary differences between the consolidated financial statement carrying amounts and their respective tax bases.Deferred tax assets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences areexpected to be reversed. Changes to enacted tax rates would result in either increases or decreases in the provision for income taxes in the period of changes.We evaluate the realizability of deferred tax assets and recognize a valuation allowance when it is more likely than not that all or a portion of deferred taxassets will not be realized.The realization of deferred tax assets is primarily dependent on future earnings. Any reduction in estimated forecasted results may require that werecord valuation allowances against deferred tax assets. Once a valuation allowance has been established, it will be maintained until there is sufficientpositive evidence to conclude that it is more likely than not that the deferred tax assets will be realized. A pattern of sustained profitability will generally beconsidered as sufficient positive evidence to reverse a valuation allowance. If the allowance is reversed in a future period, the income tax provision will becorrespondingly reduced. Accordingly, the increase and decrease of valuation allowances could have a significant negative or positive impact on futureearnings.Stock-Based Compensation — Equity-based compensation cost relating to the issuance of share-based awards to employees is based on the fair valueof the award at the date of grant, which is expensed ratably over the requisite service period, net of estimated forfeitures. Over time, the forfeiture assumptionis adjusted to the actual forfeiture rate and such change may affect the timing of the total amount of expense recognized over the vesting period. Equity-based awards that do not require future service are expensed immediately. Equity-based awards that do not meet the criteria for equity classification arerecorded as liabilities and adjusted to fair value at the end of each reporting period.Recent Accounting PronouncementsSee Note 1 in the notes to our consolidated financial statements in this Annual Report on Form 10-K for information regarding the impact of certainrecent accounting pronouncements on our consolidated financial statements.Item 7A. Quantitative and Qualitative Disclosures About Market RiskWe are exposed to certain market risks in the ordinary course of our business. These risks result primarily from changes in foreign currency exchangerates and interest rates, and concentration of credit risks. In addition, our international operations are subject to risks related to differing economic conditions,changes in political climate, differing tax structures, and other regulations and restrictions.Concentration of Credit and Other Credit RisksFinancial instruments that potentially subject us to significant concentrations of credit risk consist primarily of employee loans receivable, cash andcash equivalents, trade accounts receivable and unbilled revenues.At December 31, 2015, outstanding loans issued to employees were $6.3 million, or 0.8%, of our total assets. These loans potentially expose us to arisk of non-payment and loss. Repayment of these loans is primarily dependent on the personal income of borrowers obtained through their employment withEPAM and may be adversely affected by macroeconomic changes, such as currency devaluation and inflation. Given a large demand for the program amongour employees and its advantages as compared to alternative methods of financing available on the market, we expect the borrowers to fulfill theirobligations, and we estimate the probability of voluntary termination of employment among the borrowers as de minimis. Additionally, housing loans arecapped at $50 thousand per loan and secured by real estate financed through the program. We establish a maximum loan-to-value ratio of 70% and expect adecrease in the ratio over the life of a housing loan due to on-going payments by employees.We maintain our cash and cash equivalents and short-term investments with financial institutions. We believe that our credit policies reflect normalindustry terms and business risk. We do not anticipate non-performance by the counterparties. We hold a significant balance of cash in banks in the CIScountries where banking and other financial systems generally do not meet the banking standards of more developed markets and bank deposits made bycorporate entities in the CIS region are not insured. As of December 31, 2015, $103.7 million of total cash was held in CIS countries, with $79.5 million ofthat in Belarus, and $10.5 million in Russia. The CIS banking sector remains subject to periodic instability and the transparency of the banking sector lagsbehind international standards. Particularly in Belarus, a banking crisis, bankruptcy or insolvency of banks that process or hold our funds, may result in theloss of our deposits or adversely affect our ability to complete banking transactions in the CIS region, which could materially adversely affect our businessand financial condition. Cash in other CIS locations is used for short-term operational needs and cash balances in those banks move with the needs of theentities.47Table of ContentsTrade accounts receivable and unbilled revenues are generally dispersed across our clients in proportion to their revenues. As of December 31, 2015,billed and unbilled trade receivables from one customer, UBS AG, individually exceeded 10% and accounted for 12.4% and 19.8% of our total billed andunbilled trade receivables, respectively.During the year ended December 31, 2015, our top five customers accounted for 32.6% of our total revenues, and our top ten customers accounted for43.8% of our total revenues, respectively. During the year ended December 31, 2014, our top five customers accounted for 32.8% of our total revenues, andour top ten customers accounted for 43.9% of our total revenues, respectively.During the years ended December 31, 2015 and 2014, the Company had one customer, UBS AG, with associated revenues of $129.8 million and $97.6million, respectively, which accounted for more than 10% of total revenues in the periods indicated.Historically, credit losses and write-offs of trade accounts receivable balances have not been material to our consolidated financial statements.Interest Rate RiskOur exposure to market risk is mainly influenced by the changes in interest rates received on our cash and cash equivalent deposits and paid on anyoutstanding balance on our revolving line of credit, which is subject to a variety of rates depending on the type and timing of funds borrowed.As of December 31, 2015, we have borrowed under the line of credit and have outstanding debt of $35.0 million. The interest rate for this debt is basedon LIBOR, which is set to change quarterly, according to the 2014 Credit Facility agreement. We do not believe we are exposed to material direct risksassociated with changes in interest rates related to this borrowing.We offer loans under the Employee Housing Program and these loans are designed to be a retention mechanism for our employees in Belarus. Theseloans are financed with available funds of our Belarusian subsidiary and we do not believe that employee loans issued by us under the Employee HousingProgram expose us to significant interest rate risks.We have not been exposed to material risks due to changes in market interest rates and we do not use derivative financial instruments to hedge our riskof interest rate volatility. However, our future interest expense may increase and interest income may fall due to changes in market interest rates.Foreign Exchange RiskOur consolidated financial statements are reported in U.S. dollars; however, our business is conducted in various currencies. Outside of the UnitedStates, we operate primarily through wholly-owned subsidiaries in Canada, Europe, Asia, and the CIS and CEE regions and generate a significant portion ofour revenues in currencies other than the U.S. dollar, principally, euros, British pounds sterling, Canadian dollars, Swiss francs and Russian rubles. We incurexpenditures in non-U.S. dollar currencies, principally in Hungarian forints, euros, Russian rubles, Polish zlotys, Mexican pesos, Hong Kong dollars andChina yuan renminbi (“CNY”) associated with our delivery centers located in the CEE, Europe, Mexico and APAC regions.Our international operations expose us to foreign currency exchange rate changes that could impact translations of foreign denominated assets andliabilities into U.S. dollars and future earnings and cash flows from transactions denominated in different currencies. We are exposed to fluctuations inforeign currency exchange rates primarily on accounts receivable and unbilled revenues from sales in these foreign currencies and cash outflows forexpenditures in foreign currencies. Our results of operations can be affected if any of the currencies, which we use materially in our business, appreciate ordepreciate against the U.S. dollar. Our exchange rate risk primarily arises from our foreign currency revenues and expenses. Our exposure to currencyexchange rate changes is naturally diversified due to the variety of countries and currencies in which we conduct business.Based on our results of operations for the year ended December 31, 2015, if currencies were not impacted by foreign exchange fluctuations and resultswere evaluated on the constant currency basis using rates from the year 2014 our consolidated revenue would have been higher by 5.7%. Revenue has beennegatively impacted by all currencies when compared on the constant currency basis to the year 2014 with main differences coming from the decline in theRussian ruble, euro, British pound sterling and Canadian dollar. If compared on the same constant currency basis, our net income would have been lower by1.5% as the impact from the currency declines also had some favorable impact on the expenses at our offshore delivery centers. Net income for the year 2015compared on the constant currency basis to the year 2014 was impacted positively by the Russian ruble, Hungarian forint and Polish zloty and was offsetmostly by the negative impact from the euro, British pounds sterling and Canadian dollar. Overall, the most significant impact on the 2015 results was fromthe euro, the Russian ruble and Canadian dollar fluctuations.48Table of ContentsTo the extent that we need to convert U.S. dollars into foreign currencies for our operations, appreciation of such foreign currencies against the U.S.dollar would adversely affect the amount of such foreign currencies we receive from the conversion. Changes in the currency exchange rates resulted in ourreporting a net transactional foreign currency exchange losses of $4.6 million and $2.2 million during the years ended December 31, 2015, and 2014,respectively. The increase in net foreign exchange loss for the year ended December 31, 2015 as compared to 2014 was primarily attributable to changes inexchange rates of Russian ruble, euro, British pound sterling and Canadian dollar against U.S. dollar in the periods indicated, including realized losses fromforeign currency conversions. These losses are included in our consolidated statements of income and comprehensive income.Additionally, foreign currency translation adjustments from translating financial statements of our foreign subsidiaries from functional currency to theU.S. dollars are recorded as a separate component of stockholders’ equity or included in the consolidated statements of income and comprehensive income iflocal currencies of our foreign subsidiaries differ from their functional currencies. As of December 31, 2015, approximately 23.6% of our total net assets weresubject to foreign currency translation exposure, as compared to 21.9% as of December 31, 2014. During the years ended December 31, 2015 and 2014, netincome generated by foreign subsidiaries for which the functional currency was not U.S. dollars was 37.0% and 35.1%, respectively. During the years endedDecember 31, 2015 and 2014, we recorded $13.1 million and $20.3 million of translation losses, respectively, within our consolidated statements of incomeand comprehensive income.Item 8. Financial Statements and Supplementary DataThe information required is included in this Annual Report on Form 10-K beginning on page F-1.Item 9. Changes In and Disagreements with Accountants on Accounting and Financial DisclosureNone.Item 9A. Controls and ProceduresConclusion Regarding the Effectiveness of Disclosure Controls and ProceduresBased on management’s evaluation, with the participation of our Chief Executive Officer (CEO) and Chief Financial Officer (CFO), as of the end of theperiod covered by this report, our CEO and CFO have concluded that our disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e)under the Securities Exchange Act of 1934, as amended (the Exchange Act) are effective to provide reasonable assurance that information required to bedisclosed by us in reports that we file or submit under the Exchange Act is recorded, processed, summarized and reported within the time periods specified inSEC rules and forms, and is accumulated and communicated to management, including our principal executive officer and principal financial officer, asappropriate, to allow timely decisions regarding required disclosure.Changes in Internal Control Over Financial ReportingThere were no changes in our internal control over financial reporting during the quarter ended December 31, 2015 that have materially affected, or arereasonably likely to materially affect, our internal control over financial reporting.Management’s Report on Internal Control Over Financial ReportingOur management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and15d-15(f) under the Exchange Act to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statementsfor external purposes in accordance with U.S. generally accepted accounting principles.Under the supervision and with the participation of our management, including our principal executive officer and principal financial officer, weconducted an evaluation of the effectiveness of our internal control over financial reporting based on the criteria established in Internal Control — IntegratedFramework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.Based on this assessment, management concluded that our internal control over financial reporting was effective as of December 31, 2015 to providereasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with U.S.generally accepted accounting principles.The effectiveness of our internal control over financial reporting as of December 31, 2015 has been audited by Deloitte & Touche LLP, an independentregistered public accounting firm, as stated in their report, which appears in Part IV. Item 15 of this Annual Report on Form 10-K.49Table of ContentsInherent Limitations on Effectiveness of ControlsOur management, including the CEO and CFO, does not expect that our disclosure controls or our internal control over financial reporting will preventor detect all errors and all fraud. A control system, no matter how well designed and operated, can provide only reasonable, not absolute, assurance that thecontrol system’s objectives will be met. The design of a control system must reflect the fact that there are resource constraints, and the benefits of controlsmust be considered relative to their costs. Further, because of the inherent limitations in all control systems, no evaluation of controls can provide absoluteassurance that misstatements due to error or fraud will not occur or that all control issues and instances of fraud, if any, have been detected. The design of anysystem of controls is based in part on certain assumptions about the likelihood of future events, and there can be no assurance that any design will succeed inachieving its stated goals under all potential future conditions. Projections of any evaluation of the effectiveness of controls to future periods are subject torisks. Over time, controls may become inadequate because of changes in conditions or deterioration in the degree of compliance with policies or procedures.Item 9B. Other InformationNone.50Table of ContentsPART IIIItem 10. Directors, Executive Officers and Corporate GovernanceWe incorporate by reference the information required by this Item from the information set forth under the captions “Board of Directors”, “CorporateGovernance”, “Our Executive Officers”, and “Section 16(a) Beneficial Ownership Reporting Compliance” in our definitive proxy statement for our 2016annual meeting of stockholders, to be filed within 120 days after the end of the year covered by this Annual Report on Form 10-K, pursuant to Regulation14A under the Securities Exchange Act of 1934, as amended ( our “2016 Proxy Statement”).Item 11. Executive CompensationWe incorporate by reference the information required by this Item from the information set forth under the captions “Executive Compensation” and“Compensation Committee Interlocks and Insider Participation” in our 2016 Proxy Statement.Item 12. Security Ownership of Certain Beneficial Owners and Management and Related Stockholder MattersWe incorporate by reference the information required by this Item from the information set forth under the caption “Security Ownership of CertainBeneficial Owners and Management” in our 2016 Proxy Statement.Equity Compensation Plan InformationThe following table sets forth information about awards outstanding as of December 31, 2015 and securities remaining available for issuance under our2015 Long-Term Incentive Plan (the “2015 Plan”), our 2012 Long-Term Incentive Plan (the “2012 Plan”), the Amended and Restated 2006 Stock OptionPlan (the “2006 Plan”) and the 2012 Non-Employee Directors Compensation Plan (the “2012 Directors Plan”) as of December 31, 2015.Plan Category Number of securitiesto be issued uponexercise of outstandingoptions, warrantsand rights Weighted averageexercise price ofoutstanding options,warrants and rights Number of securitiesremaining available forfuture issuance underequity compensationplans (excludingsecurities reflected incolumn (a)) Equity compensation plans approved by security holders: (1) 7,211,440 (4) Stock options 7,450,914 (2) $34.07 (3) Restricted stock unit awards 163,272 $— (5) — (5) Equity compensation plans not approved by security holders — $— — Total 7,614,186 $34.07 7,211,440 (1)This table includes the following stockholder approved plans: the 2015 Plan, 2012 Plan, the 2006 Plan and the 2012 Directors Plan.(2)Represents the number of underlying shares of common stock associated with outstanding options under our stockholder approved plans and is comprised of 134,025 sharesunderlying options granted under our 2015 Plan; 6,277,028 shares underlying options granted under our 2012 Plan; and 1,039,861 shares underlying options granted underour 2006 Plan.(3)Represents the weighted-average exercise price of stock options outstanding under the 2015 Plan, the 2012 Plan and the 2006 Plan.(4)Represents the number of shares available for future issuances under our stockholder approved equity compensation plans and is comprised of 7,450,914 shares available forfuture issuance under the 2015 Plan and 554,070 shares available for future issuances under the 2012 Directors Plan.(5)Not applicable.Item 13. Certain Relationships and Related Transactions, and Director IndependenceWe incorporate by reference the information required by this Item from the information set forth under the caption “Certain Relationships and RelatedTransactions and Director Independence” in our 2016 Proxy Statement.Item 14. Principal Accountant Fees and ServicesWe incorporate by reference the information required by this Item from the information set forth under the caption “Independent Registered PublicAccounting Firm” in our 2016 Proxy Statement.51Table of ContentsPART IVItem 15. Exhibits, Financial Statement Schedules(a) We have filed the following documents as part of this annual report:1. Audited Consolidated Financial Statements PageReport of Independent Registered Public Accounting FirmF-2Consolidated Balance Sheets as of December 31, 2015 and 2014F-4Consolidated Statements of Income and Comprehensive Income for Years Ended December 31, 2015, 2014 and 2013F-5Consolidated Statements of Changes in Redeemable Preferred Stock and Stockholders’ Equity for Years Ended December 31, 2015,2014 and 2013F-6Consolidated Statements of Cash Flows for Years Ended December 31, 2015, 2014 and 2013F-8Notes to Consolidated Financial Statements for Years Ended December 31, 2015, 2014 and 2013F-102. Financial Statement SchedulesNone. All schedules have been included in the consolidated financial statements or the notes thereto.3. ExhibitsA list of exhibits required to be filed as part of this Annual Report is set forth in the Exhibit Index.52Table of ContentsEXHIBIT INDEXExhibitNumber Description 3.1 Certificate of incorporation (incorporated herein by reference to Exhibit 3.1 to the Company’s Form 10-K for the fiscal year endedDecember 31, 2011, SEC File No. 001-35418, filed March 30, 2012 (the “2011 Form 10-K”))3.2 Bylaws (incorporated herein by reference to Exhibit 3.2 to the 2011 Form 10-K)4.1 Form of Common Stock Certificate (incorporated herein by reference to Exhibit 4.1 to Amendment No. 6 to Form S-1, SEC File No. 333-174827, filed January 23, 2012 (“Amendment No. 6”))4.2 Amended and Restated Registration Rights Agreement dated February 19, 2008 (incorporated herein by reference to Exhibit 4.2 to FormS-1, SEC File No. 333-174827, filed June 10, 2011 (the “Registration Statement”))4.3 Registration Rights Agreement dated April 26, 2010 (incorporated herein by reference to Exhibit 4.3 to the Registration Statement)10.1† EPAM Systems, Inc. Amended and Restated 2006 Stock Option Plan (incorporated herein by reference to Exhibit 10.6 to Amendment No.6)10.2† Form of EPAM Systems, Inc. 2006 Stock Option Plan Award Agreement (under the EPAM Systems, Inc. Amended and Restated 2006Stock Option Plan) (incorporated herein by reference to Exhibit 10.7 to Amendment No. 6)10.3† EPAM Systems, Inc. 2012 Long-Term Incentive Plan (incorporated herein by reference to Exhibit 10.12 to Amendment No. 6)10.4† Form of Senior Management Non-Qualified Stock Option Award Agreement (under the EPAM Systems, Inc. 2012 Long-Term IncentivePlan) (incorporated herein by reference to Exhibit 10.13 to Amendment No. 6)10.5† Restricted Stock Award Agreement by and between Karl Robb and EPAM Systems, Inc. dated January 16, 2012 (incorporated herein byreference to Exhibit 10.14 to Amendment No. 6)10.6† Form of Chief Executive Officer Restricted Stock Unit Award Agreement (under the EPAM Systems, Inc. 2012 Long-Term Incentive Plan)(incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2014, SECFile No. 001-35418, filed May 7, 2014 (the “Q1 2014 Form 10-Q”)10.7† Form of Senior Management Restricted Stock Unit Award Agreement (under the EPAM Systems, Inc. 2012 Long-Term Incentive Plan)(incorporated by reference to Exhibit 10.2 to the Q1 2014 Form 10-Q)10.8† Form of Chief Executive Officer Non-Qualified Stock Option Award Agreement (under the EPAM Systems, Inc. 2012 Long-TermIncentive Plan) (incorporated by reference to Exhibit 10.3 to the Q1 2014 Form 10-Q)10.9† Form of Chief Executive Officer Restricted Stock Unit Award Agreement (under the EPAM Systems, Inc. 2012 Long-Term Incentive Plan)(incorporated by reference to Exhibit 10.1 to the Company’s Quarterly Report on Form 10-Q for the quarter ended March 31, 2015, SECFile No. 001-35418, filed May 7, 2015 (the “Q1 2015 Form 10-Q”)10.10† Form of Senior Management Restricted Stock Unit Award Agreement (under the EPAM Systems, Inc. 2012 Long-Term Incentive Plan)(incorporated by reference to Exhibit 10.2 to the Q1 2015 Form 10-Q)10.11† EPAM Systems, Inc. 2015 Long-Term Incentive Plan (incorporated by reference to Exhibit 10.1 to the Company’s Current Report onForm 8-K, SEC File No. 001-35418, filed June 15, 2015)10.12†* Form of Chief Executive Officer Non-Qualified Stock Option Award Agreement (under the EPAM Systems, Inc. 2015 Long-TermIncentive Plan)10.13†* Form of Chief Executive Officer Restricted Stock Unit Award Agreement (under the EPAM Systems, Inc. 2015 Long-Term Incentive Plan)10.14†* Form of Senior Management Non-Qualified Stock Option Award Agreement (under the EPAM Systems, Inc. 2015 Long-Term IncentivePlan)10.15†* Form of Senior Management Restricted Stock Unit Award Agreement (under the EPAM Systems, Inc. 2015 Long-Term Incentive Plan)10.16† Amended and Restated EPAM Systems, Inc. Non-Employee Directors Compensation Plan (incorporated herein by reference to Exhibit10.3 to the Q1 2015 Form 10-Q)10.17† Form of Non-Employee Director Restricted Stock Award Agreement (under the EPAM Systems, Inc. 2012 Non-Employee DirectorsCompensation Plan) (incorporated herein by reference to Exhibit 10.16 to Amendment No. 6)10.18† Amended and Restated Non-Employee Director Compensation Policy (incorporated herein by reference to Exhibit 10.4 to the Q1 2015Form 10-Q)53Table of Contents10.19† Form of Director Offer Letter (incorporated herein by reference to Exhibit 10.18 to Amendment No. 6)10.20† Executive Employment Agreement by and between Arkadiy Dobkin and EPAM Systems, Inc. dated January 20, 2006 (expired exceptwith respect to Section 8) (incorporated herein by reference to Exhibit 10.19 to Amendment No. 6)10.21† Offer Letter by and between Ginger Mosier and EPAM Systems, Inc. dated February 24, 2010 (incorporated herein by reference to Exhibit10.20 to Amendment No. 6)10.22† Employment Contract by and between Balazs Fejes and EPAM Systems (Switzerland) GmbH. dated June 15, 2009 (incorporated hereinby reference to Exhibit 10.21 to Amendment No. 6)10.23† Consultancy Agreement by and between Landmark Business Development Limited, Balazs Fejes and EPAM Systems, Inc. dated January20, 2006 (expired except with respect to Section 8) (incorporated herein by reference to Exhibit 10.22 to Amendment No. 6)10.24† Consultancy Agreement by and between Landmark Business Development Limited, Karl Robb and EPAM Systems, Inc. dated January20, 2006 (expired except with respect to Section 8) (incorporated herein by reference to Exhibit 10.23 to Amendment No. 6)10.25† Form of nondisclosure, noncompete and nonsolicitation agreement (incorporated herein by reference to Exhibit 10.24 to Amendment No.6)10.26† Form of Indemnification Agreement (incorporated herein by reference to Exhibit 10.25 to Amendment No. 6)10.27 Credit Agreement dated as of September 12, 2014 by and among EPAM Systems, Inc. (as borrower), the lenders and guarantors partythereto, and PNC Bank, National Association, as Administrative Agent (incorporated hereby by reference to Exhibit 10.1 to theCompany’s Current Report on Form 8-K filed September 9, 2014, SEC File No. 001-35418)18.1 Letter re Changes in Accounting Principles (incorporated herein by reference to Exhibit 18.1 to the Company’s Annual Report on Form10-K for the fiscal year ended December 31, 2013, SEC File No. 001-35418, filed March 11, 2014).21.1* Subsidiaries of the Registrant23.1* Consent of Independent Registered Public Accounting Firm31.1* Certification of the Chief Executive Officer pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 193431.2* Certification of the Chief Financial Officer pursuant to Rule 13a-14(a)/15d-14(a) of the Securities Exchange Act of 193432.1* Certification of the Chief Executive Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 200232.2* Certification of the Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-OxleyAct of 2002101.INS** XBRL Instance Document101.SCH** XBRL Taxonomy Extension Schema Document101.CAL** XBRL Taxonomy Extension Calculation Linkbase Document101.DEF** XBRL Taxonomy Extension Definition Linkbase Document101.LAB** XBRL Taxonomy Extension Label Linkbase Document101.PRE** XBRL Taxonomy Extension Presentation Linkbase Document † Indicates management contracts or compensatory plans or arrangements* Exhibits filed herewith** As provided in Rule 406T of Regulation S-T, this information is furnished and not filed for purposes of Section 11 and 12 of theSecurities Act of 1933, as amended, and Section 18 of the Securities Exchange Act of 1934, as amended.54Table of ContentsSIGNATURESPursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed onits behalf by the undersigned thereunto duly authorized.Date: February 22, 2016 EPAM SYSTEMS, INC. By:/s/ Arkadiy Dobkin Name: Arkadiy Dobkin Title: Chairman, Chief Executive Officer and President(principal executive officer)Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of theregistrant and in the capacities and on the dates indicated.Signature Title Date /s/ Arkadiy Dobkin Chairman, Chief Executive Officer and President(principal executive officer) February 22, 2016Arkadiy Dobkin /s/ Anthony J. Conte Senior Vice President, Chief Financial Officer andTreasurer(principal financial officer and principal accountingofficer) February 22, 2016Anthony J. Conte /s/ Karl Robb Director February 22, 2016Karl Robb /s/ Peter Kuerpick Director February 22, 2016Peter Kuerpick /s/ Richard Michael Mayoras Director February 22, 2016Richard Michael Mayoras /s/ Robert E. Segert Director February 22, 2016Robert E. Segert /s/ Ronald P. Vargo Director February 22, 2016Ronald P. Vargo 55Table of ContentsEPAM SYSTEMS, INC.FORM 10-KFOR THE YEAR ENDED DECEMBER 31, 2015TABLE OF CONTENTSINDEX TO CONSOLIDATED FINANCIAL STATEMENTS PageAudited Consolidated Financial Statements Reports of Independent Registered Public Accounting FirmF-2Consolidated Balance Sheets as of December 31, 2015 and 2014F-4Consolidated Statements of Income and Comprehensive Income for Years Ended December 31, 2015, 2014 and 2013F-5Consolidated Statements of Changes in Stockholders’ Equity for Years Ended December 31, 2015, 2014 and 2013F-6Consolidated Statements of Cash Flows for Years Ended December 31, 2015, 2014 and 2013F-8Notes to Consolidated Financial Statements for Years Ended December 31, 2015, 2014 and 2013F-10F-1Table of ContentsREPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMTo the Board of Directors and Stockholders of EPAM Systems, Inc.We have audited the accompanying consolidated balance sheets of EPAM Systems, Inc. and subsidiaries (the "Company") as of December 31, 2015 and2014, and the related consolidated statements of income and comprehensive income, changes in stockholders' equity, and cash flows for each of the threeyears in the period ended December 31, 2015. These financial statements are the responsibility of the Company's management. Our responsibility is toexpress an opinion on the financial statements based on our audits.We conducted our audits in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require thatwe plan and perform the audit to obtain reasonable assurance about whether the financial statements are free of material misstatement. An audit includesexamining, on a test basis, evidence supporting the amounts and disclosures in the financial statements. An audit also includes assessing the accountingprinciples used and significant estimates made by management, as well as evaluating the overall financial statement presentation. We believe that ouraudits provide a reasonable basis for our opinion.In our opinion, such consolidated financial statements present fairly, in all material respects, the financial position of EPAM Systems, Inc. and subsidiariesas of December 31, 2015 and 2014, and the results of their operations and their cash flows for each of the three years in the period ended December 31,2015, in conformity with accounting principles generally accepted in the United States of America. Also, in our opinion, such financial statements taken asa whole, present fairly, in all material respects, the information set forth therein.We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the Company's internal controlover financial reporting as of December 31, 2015, based on the criteria established in Internal Control - Integrated Framework (2013) issued by theCommittee of Sponsoring Organizations of the Treadway Commission and our report dated February 22, 2016 expressed an unqualified opinion on theCompany's internal control over financial reporting./s/ DELOITTE & TOUCHE LLPPhiladelphia, PennsylvaniaFebruary 22, 2016F-2Table of ContentsREPORT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMTo the Board of Directors and Stockholders of EPAM Systems, Inc.We have audited the internal control over financial reporting of EPAM Systems, Inc. and subsidiaries (the "Company") as of December 31, 2015, based oncriteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.The Company's management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness ofinternal control over financial reporting, included in the accompanying the Management’s Report on Internal Control over Financial Reporting. Ourresponsibility is to express an opinion on the Company's internal control over financial reporting based on our audit.We conducted our audit in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require thatwe plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all materialrespects. Our audit included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, testingand evaluating the design and operating effectiveness of internal control based on the assessed risk, and performing such other procedures as we considerednecessary in the circumstances. We believe that our audit provides a reasonable basis for our opinion.A company's internal control over financial reporting is a process designed by, or under the supervision of, the company's principal executive and principalfinancial officers, or persons performing similar functions, and effected by the company's board of directors, management, and other personnel to providereasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance withgenerally accepted accounting principles. A company's internal control over financial reporting includes those policies and procedures that (1) pertain to themaintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (2) providereasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally acceptedaccounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management anddirectors of the company; and (3) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition ofthe company's assets that could have a material effect on the financial statements.Because of the inherent limitations of internal control over financial reporting, including the possibility of collusion or improper management override ofcontrols, material misstatements due to error or fraud may not be prevented or detected on a timely basis. Also, projections of any evaluation of theeffectiveness of the internal control over financial reporting to future periods are subject to the risk that the controls may become inadequate because ofchanges in conditions, or that the degree of compliance with the policies or procedures may deteriorate.In our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2015, based on thecriteria established in Internal Control - Integrated Framework (2013) issued by the Committee of Sponsoring Organizations of the Treadway Commission.We have also audited, in accordance with the standards of the Public Company Accounting Oversight Board (United States), the consolidated financialstatements as of and for the year ended December 31, 2015 of the Company and our report dated February 22, 2016 expressed an unqualified opinion onthose financial statements.DELOITTE & TOUCHE LLPPhiladelphia, PennsylvaniaFebruary 22, 2016 F-3Table of ContentsEPAM SYSTEMS INC. AND SUBSIDIARIESCONSOLIDATED BALANCE SHEETS(US Dollars in thousands, except share and per share data) As of December 31, 2015 As of December 31, 2014Assets Current assets Cash and cash equivalents$199,449 $220,534Time deposits30,181 —Accounts receivable, net of allowance of $1,729 and $2,181, respectively174,617 124,483Unbilled revenues95,808 55,851Prepaid and other current assets14,344 9,289Employee loans, net of allowance of $0 and $0, respectively, current2,689 2,434Deferred tax assets, current11,847 2,496Total current assets528,935 415,087Property and equipment, net60,499 55,134Restricted cash, long-term238 156Employee loans, net of allowance of $0 and $0, respectively, long-term3,649 4,081Intangible assets, net46,860 47,689Goodwill115,930 57,417Deferred tax assets, long-term18,312 11,094Other long-term assets4,113 3,368Total assets$778,536 $594,026 Liabilities Current liabilities Accounts payable$2,576 $4,641Accrued expenses and other liabilities60,384 32,203Deferred revenue, current3,047 3,220Due to employees32,067 24,518Taxes payable29,472 24,704Contingent consideration, current (Note 2 and 16)— 35,524Deferred tax liabilities, current365 603Total current liabilities127,911 125,413Long-term debt35,000 —Deferred tax liabilities, long-term2,402 4,563Total liabilities165,313 129,976Commitments and contingencies (Note 15) Stockholders’ equity Common stock, $0.001 par value; 160,000,000 authorized; 50,177,044 and 48,748,298 shares issued, 50,166,537and 48,303,811 shares outstanding at December 31, 2015 and December 31, 2014, respectively49 48Additional paid-in capital303,363 229,501Retained earnings345,054 260,598Treasury stock(93) (4,043)Accumulated other comprehensive loss(35,150) (22,054)Total stockholders’ equity613,223 464,050Total liabilities and stockholders’ equity$778,536 $594,026The accompanying notes are an integral part of the consolidated financial statements.F-4Table of ContentsEPAM SYSTEMS INC. AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME(US Dollars in thousands, except share and per share data) For the Years Ended December 31, 2015 2014 2013Revenues$914,128 $730,027 $555,117Operating expenses: Cost of revenues (exclusive of depreciation and amortization)566,913 456,530 347,650Selling, general and administrative expenses222,759 163,666 116,497Depreciation and amortization expense17,395 17,483 15,120Goodwill impairment loss— 2,241 —Other operating expenses/(income), net1,094 3,924 (643)Income from operations105,967 86,183 76,493Interest and other income, net4,731 4,769 3,077Change in fair value of contingent consideration— (1,924) —Foreign exchange loss(4,628) (2,075) (2,800)Income before provision for income taxes106,070 86,953 76,770Provision for income taxes21,614 17,312 14,776Net income$84,456 $69,641 $61,994Foreign currency translation adjustments(13,096) (20,251) (811)Comprehensive income$71,360 $49,390 $61,183 Net income per share: Basic$1.73 $1.48 $1.35Diluted$1.62 $1.40 $1.28Shares used in calculation of net income per share: Basic48,721 47,189 45,754Diluted51,986 49,734 48,358The accompanying notes are an integral part of the consolidated financial statements.F-5Table of ContentsEPAM SYSTEMS, INC. AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF CHANGES INSTOCKHOLDERS’ EQUITY(US Dollars in thousands, except share data) Common Stock AdditionalPaid-inCapital RetainedEarnings TreasuryStock AccumulatedOtherComprehensiveIncome TotalStockholders’Equity Shares Amount Balance, December 31, 201244,442,494 $44 $166,962 $128,992 $(8,697) $(1,021) $286,280Stock-based compensation expense— — 13,150 — — — 13,150Stock issued under the 2012 Non-Employee DirectorsCompensation Plan14,041 — — — — — —Stock issued in connection with acquisition of EmpathyLab1,483 — (13) — 13 — —Proceeds from stock options exercises2,156,898 2 9,285 — — — 9,287Excess tax benefits— — 6,201 — — — 6,201Currency translation adjustment— — — — — (811) (811)Net income— — — 61,994 — — 61,994Balance, December 31, 201346,614,916 $46 $195,585 $190,986 $(8,684) $(1,832) $376,101Stock issued in connection with acquisition of Netsoft(Note 2)2,289 — (21) — 21 — —Stock issued in connection with acquisition of Jointech(Note 2)179,104 — 1,158 — 1,630 — 2,788Stock issued in connection with acquisition of GGA(Note 2)262,277 — (2,386) — 2,386 — —Stock issued in connection with acquisition of GreatFridays (Note 2)90,864 — (827) — 827 — —Stock issued under the 2012 Non-Employee DirectorsCompensation Plan (Note 14)7,738 — — — — — —Forfeiture of stock issued in connection with acquisitionof Empathy Lab(24,474) — 223 — (223) — —Stock-based compensation expense (net of liabilityawards)— — 21,397 — — — 21,397Proceeds from stock options exercises1,171,097 2 10,596 — — — 10,598Excess tax benefits— — 3,776 — — — 3,776Prior periods retained earning adjustment— — — (29) — 29 —Currency translation adjustment— — — — — (20,251) (20,251)Net income— — — 69,641 — — 69,641Balance, December 31, 201448,303,811 $48 $229,501 $260,598 $(4,043) $(22,054) $464,050 F-6Table of Contents Common Stock AdditionalPaid-inCapital RetainedEarnings TreasuryStock AccumulatedOtherComprehensiveIncome TotalStockholders’Equity Shares Amount Balance, December 31, 201448,303,811 $48 $229,501 $260,598 $(4,043) $(22,054) $464,050Stock issued in connection with acquisition of Netsoft(Note 2)25,503 — (232) — 232 — —Forfeiture of stock issued in connection with acquisitionof Netsoft(1,482) — 13 — (13) — —Stock issued in connection with acquisition of Jointech(Note 2)166,114 — 3,488 — 1,512 — 5,000Stock issued in connection with acquisition of GGA(Note 2)233,753 — (2,127) — 2,127 — —Stock issued in connection with acquisition of GreatFridays (Note 2)10,092 — (11) — 92 — 81Stock issued under the 2012 Non-Employee DirectorsCompensation Plan (Note 13)5,295 — — — — —Restricted stock unites vested17,625 — 574 — — — 574Stock-based compensation expense (net of liabilityawards & RSU)— — 43,120 — — — 43,120Proceeds from stock options exercises1,405,826 1 20,674 — — — 20,675Excess tax benefits— — 8,363 — — — 8,363Currency translation adjustment— — — — — (13,096) (13,096)Net income— — — 84,456 — — 84,456Balance, December 31, 201550,166,537 $49 $303,363 $345,054 $(93) $(35,150) $613,223The accompanying notes are an integral part of the consolidated financial statements.F-7Table of ContentsEPAM SYSTEMS INC. AND SUBSIDIARIESCONSOLIDATED STATEMENTS OF CASH FLOWS (US Dollars in thousands) For the Years Ended December 31, 2015 2014 2013Cash flows from operating activities: Net income $84,456 $69,641 $61,994Adjustments to reconcile net income to net cash provided by operating activities: Depreciation and amortization 17,395 17,483 15,120Bad debt expense 1,407 817 335Deferred taxes (15,328) (3,270) 41Stock-based compensation expense 45,833 24,620 13,150Impairment charges and acquisition related adjustments (1,183) 7,907 —Excess tax benefit on stock-based compensation plans (8,363) (3,776) (6,201)Other 3,883 735 1,199Changes in operating assets and liabilities: (Increase)/ decrease in operating assets: Accounts receivable (47,694) (30,410) (17,302)Unbilled revenues (38,076) (11,134) (9,833)Prepaid expenses and other assets (574) 565 587Increase/ (decrease) in operating liabilities: Accounts payable (2,781) (2,603) (2,900)Accrued expenses and other liabilities 26,563 11,492 501Deferred revenues (869) (1,514) (2,325)Due to employees 2,752 7,453 785Taxes payable 8,972 16,868 3,074Net cash provided by operating activities 76,393 104,874 58,225Cash flows from investing activities: Purchases of property and equipment (13,272) (11,916) (13,360)Payment for construction of corporate facilities (4,692) (3,924) (2,560)Employee housing loans (2,054) (1,740) (7,982)Proceeds from repayments of employee housing loans 2,249 1,793 2,189Increase in restricted cash and time deposits, net (29,944) 1,430 429Increase in other long-term assets, net (708) (1,479) (516)Payments for foreign currency derivatives (165) — —Acquisition of businesses, net of cash acquired (Note 2) (76,908) (37,093) (20)Net cash used in investing activities (125,494) (52,929) (21,820)Cash flows from financing activities: Proceeds related to stock options exercises 20,675 10,571 9,300Excess tax benefit on stock-based compensation plans 8,363 3,776 6,201Proceeds from borrowing under line of credit (Note 12) 35,000 — —Acquisition of business, deferred consideration (Note 2) (30,274) (4,000) —Net cash provided by financing activities 33,764 10,347 15,501Effect of exchange rate changes on cash and cash equivalents (5,748) (10,965) (811)Net increase/ (decrease) in cash and cash equivalents (21,085) 51,327 51,095Cash and cash equivalents, beginning of period 220,534 169,207 118,112Cash and cash equivalents, end of period $199,449 $220,534 $169,207Supplemental disclosures of cash paid: Income taxes $25,071 $11,756 $10,207Bank interest $124 $7 $26F-8Table of ContentsNoncash operating activities:For the year 2014, included in the Impairment charges and acquisition related adjustments line reported amount is the goodwill impairment loss of $2,241,contingent consideration fair value adjustment of $1,924, and write off related to the building construction in Minsk, Belarus of $3,742.Noncash financing activities recorded in connection with acquisitions of businesses:Deferred consideration payable was $603 in 2015, $1,022 in 2014 and 0 in 2013.Contingent consideration payable was $0 in 2015, $36,322 in 2014 and 0 in 2013.The accompanying notes are an integral part of the consolidated financial statements.F-9Table of ContentsEPAM SYSTEMS INC. AND SUBSIDIARIESNOTES TO CONSOLIDATED FINANCIAL STATEMENTSAS OF DECEMBER 31, 2015 AND 2014AND FOR THE YEARS ENDED DECEMBER 31, 2015, 2014 AND 2013(US Dollars in thousands, except share and per share data) 1.NATURE OF BUSINESS AND SUMMARY OF SIGNIFICANT ACCOUNTING POLICIESEPAM is a global provider of software product engineering, technology consulting and digital expertise to clients located around the world, primarilyin North America, Europe, Asia and the CIS region. The Company has expertise in various industries, including software and hi-tech, financial services,media and entertainment, travel and hospitality, retail and distribution and life sciences and healthcare.The Company is incorporated in Delaware with headquarters in Newtown, PA. The Company EPAM serves clients worldwide utilizing an award-winning global delivery platform and its locations in over 20 countries across North America, Europe, Asia and Australia.Principles of Consolidation — The consolidated financial statements include the financial statements of EPAM Systems, Inc. and its subsidiaries. Allintercompany balances and transactions have been eliminated.Use of Estimates — The preparation of financial statements in conformity with accounting principles generally accepted in the United States requiresmanagement to make estimates and assumptions. These estimates and assumptions affect reported amounts of assets and liabilities and the disclosure ofcontingent assets and liabilities at the date of the financial statements, as well as revenues and expenses during the reporting period. The Company bases itsestimates and judgments on historical experience, knowledge of current conditions and its beliefs of what could occur in the future, given availableinformation. Actual results could differ from those estimates, and such differences may be material to the financial statements.Revenue Recognition — The Company recognizes revenue when the following criteria are met: (1) persuasive evidence of an arrangement exists; (2)delivery has occurred; (3) the sales price is fixed or determinable; and (4) collectability is reasonably assured. Determining whether and when some of thesecriteria have been satisfied often involves assumptions and judgments that can have a significant impact on the timing and amount of revenue reported.The Company derives its revenues from a variety of service offerings, which represent specific competencies of its IT professionals. Contracts for theseservices have different terms and conditions based on the scope, deliverables, and complexity of the engagement, which require management to makejudgments and estimates in determining appropriate revenue recognition pattern. Fees for these contracts may be in the form of time-and-materials or fixed-price arrangements. If there is an uncertainty about the project completion or receipt of payment for the consulting services, revenue is deferred until theuncertainty is sufficiently resolved. At the time revenue is recognized, the Company provides for any contractual deductions and reduces the revenueaccordingly. The Company reports gross reimbursable “out-of-pocket” expenses incurred as both revenues and cost of revenues in the consolidatedstatements of income and comprehensive income.The Company defers amounts billed to its clients for revenues not yet earned. Such amounts are anticipated to be recorded as revenues when servicesare performed in subsequent periods. Unbilled revenue is recorded when services have been provided but billed subsequent to the period end in accordancewith the contract terms.The Company reports gross reimbursable “out-of-pocket” expenses incurred as both revenues and cost of revenues in the consolidated statements ofincome and comprehensive income.The majority of the Company’s revenues (85.8% of revenues in 2015, 84.7% in 2014 and 82.3% in 2013) is generated under time-and-materialcontracts where revenues are recognized as services are performed with the corresponding cost of providing those services reflected as cost of revenues. Themajority of such revenues are billed on an hourly, daily or monthly basis as actual time is charged directly to the client.F-10Table of ContentsRevenues from fixed-price contracts (12.8% of revenues in 2015, 13.6% in 2014 and 15.7% in 2013) are determined using the proportionalperformance method. In instances where final acceptance of the product, system, or solution is specified by the client, revenues are deferred until allacceptance criteria have been met. In absence of a sufficient basis to measure progress towards completion, revenue is recognized upon receipt of finalacceptance from the client. In order to estimate the amount of revenue for the period under the proportional performance method, the Company determinesthe percentage of actual labor hours incurred as compared to estimated total labor hours and applies that percentage to the consideration allocated to thedeliverable. The complexity of the estimation process and factors relating to the assumptions, risks and uncertainties inherent with the application of theproportional performance method of accounting affects the amounts of revenues and related expenses reported in the Company’s consolidated financialstatements. A number of internal and external factors can affect such estimates, including labor hours and specification and testing requirement changes. Thecumulative impact of any revision in estimates is reflected in the financial reporting period in which the change in estimate becomes known. No significantrevisions occurred in each of the three years ended December 31, 2015, 2014 and 2013. The Company’s fixed price contracts are generally recognized over aperiod of 12 months or less.Cost of Revenues (Exclusive of Depreciation and Amortization) — Consists principally of salaries and bonuses of the revenue producing personnel,as well as employee benefits, stock compensation expense and non-reimbursable travel costs for these professionals.Selling, General and Administrative Expenses — Consist mainly of compensation, benefits and travel expenses of the officers, management, sales,marketing and administrative personnel. Other operation expenses include advertising, promotional activities, legal and audit expenses, recruitment anddevelopment efforts, insurance, and operating lease expenses. In addition, the Company has issued stock to the sellers and/or personnel in connection withbusiness acquisitions and has been recognizing stock-based compensation expense in the periods after the closing of these acquisitions as part of the selling,general and administrative expenses. Stock option expenses related to acquisitions comprised a significant portion of total selling, general andadministrative stock-based compensation expense in 2014 and 2015.Fair Value of Financial Instruments — The Company makes assumptions about fair values of its financial assets and liabilities in accordance withthe Financial Accounting Standards Board (FASB) Accounting Standards Codification (ASC) Topic 820, “Fair Value Measurement,” and utilizes thefollowing fair value hierarchy in determining inputs used for valuation:Level 1 — Quoted prices for identical assets or liabilities in active markets.Level 2 — Inputs other than quoted prices within Level 1 that are observable either directly or indirectly, including quoted prices in markets that arenot active, quoted prices in active markets for similar assets or liabilities, and observable inputs other than quoted prices such as interest rates or yield curves.Level 3 — Unobservable inputs reflecting management’s view about the assumptions that market participants would use in pricing the asset orliability.Where the fair values of financial assets and liabilities recorded in the consolidated balance sheets cannot be derived from an active market, they aredetermined using a variety of valuation techniques. These valuation techniques include a net present value technique, comparison to similar instrumentswith market observable inputs, options pricing models and other relevant valuation models. To the extent possible, observable market data is used as inputsinto these models but when it is not feasible, a degree of judgment is required to establish fair values.Financial Assets and Liabilities Measured At Fair Value on a Recurring BasisThe Company’s contingent liabilities measured at fair value on a recurring basis are comprised of performance-based awards issued to certain formerowners of the acquired businesses in exchange for future services. Contingent liabilities are valued using significant inputs that are not observable in themarket, which are defined as Level 3 inputs according to fair value measurement accounting. The Company estimates the fair value of contingent liabilitiesbased on certain performance milestones of the acquired businesses and estimated probabilities of achievement, then discounts the liabilities to present valueusing the Company’s cost of debt for the cash component of contingent consideration, and risk free rate for the stock component of a contractualcontingency. The Company believes its estimates and assumptions are reasonable, however, there is significant judgment involved. Changes in the fair valueof contingent consideration liabilities primarily result from changes in the timing and amount of specific milestone estimates and changes in probabilityassumptions with respect to the likelihood of achieving the various earnout criteria. These changes could cause a material impact to, and volatility in theCompany’s operating results. See Note 16 for contingent liabilities activity.F-11Table of ContentsEmployee Loans — The Company issues employee housing loans in Belarus and relocation loans to assist employees with relocation needs inconnection with intra-company transfers. There are no loans issued to principal officers, directors, and their affiliates. Although permitted by authoritativeguidance, we did not elect a fair value option for these financial instruments. These housing loans were measured at fair value upon initial recognition andsubsequently carried at amortized cost less allowance for loan losses. Any difference between the carrying value and the fair value of a loan upon initialrecognition is charged to expense. The Company intends to hold all employee loans until their maturity. Interest income is reported using the effectiveinterest method. Where applicable, loan origination fees, net of direct origination costs, are deferred and recognized in interest income over the life of theloan.Employee Housing Loans — The housing loans are measured using the Level 3 inputs within the fair value hierarchy because they are valued usingsignificant unobservable inputs. These housing loans are measured at fair value upon initial recognition through the market approach under ASC Topic 820,“Fair Value Measurement” and subsequently carried at amortized cost less allowance for loan losses. Any difference between the carrying value and the fairvalue of a loan upon initial recognition is charged to expense.Employee Loans, Other — The Company issues short-term, non-interest bearing relocation loans to employees that relocated within the company. Dueto the short term of these loans and high certainty of repayment, their carrying amount is a reasonable estimate of their fair value.Business Combinations — The Company accounts for its business combinations using the acquisition accounting method, which requires it todetermine the fair value of net assets acquired and the related goodwill and other intangible assets in accordance with the FASB ASC Topic 805, “BusinessCombinations.” The Company identifies and attributes fair values and estimated lives to the intangible assets acquired and allocates the total cost of anacquisition to the underlying net assets based on their respective estimated fair values. Determining the fair value of assets acquired and liabilities assumedrequires management’s judgment and involves the use of significant estimates, including projections of future cash inflows and outflows, discount rates, assetlives and market multiples. There are different valuation models for each component, the selection of which requires considerable judgment. Thesedeterminations will affect the amount of amortization expense recognized in future periods. The Company bases its fair value estimates on assumptions itbelieves are reasonable, but recognizes that the assumptions are inherently uncertain.If initial accounting for the business combination has not been completed by the end of the reporting period in which the business combinationoccurs, provisional amounts are reported for which the accounting is incomplete, with retrospective adjustment made to such provisional amounts during themeasurement period to present new information about facts and circumstances that existed as of the acquisition date.All acquisition-related costs, other than the costs to issue debt or equity securities, are accounted for as expenses in the period in which they areincurred. Changes in fair value of contingent consideration arrangements that are not measurement period adjustments are recognized in earnings. Paymentsto settle contingent consideration, if any, are reflected in cash flows from financing activities and the changes in fair value are reflected in cash flows fromoperating activities in the Company’s consolidated statements of cash flows.The acquired assets typically consist of customer relationships, trade names, non-competition agreements, and workforce and as a result, a substantialportion of the purchase price is allocated to goodwill and other intangible assets.Cash and Cash Equivalents — Cash equivalents are short-term, highly liquid investments that are readily convertible into cash, with maturities ofthree months or less at the date acquired. As of December 31, 2015 and 2014 the Company had no cash equivalents.Restricted Cash — Restricted cash represents cash that is restricted by agreements with third parties for special purposes and includes time deposits.See Note 6 for items that constitute restricted cash.Accounts Receivable — Accounts receivable are stated net of an allowance for doubtful accounts. Outstanding accounts receivable are reviewedperiodically and allowances are provided at such time the management believes it is probable that such balances will not be collected within a reasonabletime. The allowance for doubtful accounts is determined by evaluating the relative creditworthiness of each client, historical collections experience and otherinformation, including the aging of the receivables. Accounts receivable are generally written off when they are deemed uncollectible. Bad debts are recordedbased on historical experience and management’s evaluation of accounts receivable.F-12Table of ContentsThe table below summarizes movements in qualifying accounts for the years ended December 31, 2015, 2014 and 2013: Balance atBeginning ofPeriod Charged to Costsand Expenses Deductions/Other Balance at Endof Year Allowance for Doubtful Accounts (Billed and Unbilled): Fiscal Year 2013 $2,203 $619 $(1,022) $1,800Fiscal Year 2014 1,800 1,325 (944) 2,181Fiscal Year 2015 2,181 1,704 (2,156) 1,729Property and Equipment — Property and equipment acquired in the ordinary course of the Company’s operations are stated at cost, net ofaccumulated depreciation. Depreciation is calculated on the straight-line basis over the estimated useful lives of the assets generally ranging from three tofifty years. Leasehold improvements are amortized on a straight-line basis over the shorter of the term of the lease or the estimated useful life of theimprovement. Maintenance and repairs are expensed as incurred.Goodwill and Other Intangible Assets — Goodwill and intangible assets that have indefinite useful lives are treated consistently with FASB ASC350, “Intangibles - Goodwill and Other.” The Company does not have any intangible assets with indefinite useful lives.The Company assesses goodwill for impairment annually, and more frequently in certain circumstances. The Company initially performs a qualitativeassessment of goodwill to test for impairment indicators. After applying the qualitative assessment, if the entity concludes that it is not more likely than notthat the fair value of goodwill is less than the carrying amount; the two-step goodwill impairment test is not required.If the Company determines that it is more likely than not that the carrying amount exceeds the fair value, the Company performs a quantitativeimpairment test. If an indicator of impairment is identified, the implied fair value of the reporting unit’s goodwill is compared to its carrying amount, and theimpairment loss is measured by the excess of the carrying value over the fair value. The fair values are estimated using a combination of the income approach,which incorporates the use of the discounted cash flow method, and the market approach, which incorporates the use of earnings multiples based on marketdata. These valuations are considered Level 3 measurements under FASB ASC Topic 820. The Company utilizes estimates to determine the fair value of thereporting units such as future cash flows, growth rates, capital requirements, effective tax rates and projected margins, among other factors. Estimates utilizedin the future evaluations of goodwill for impairment could differ from estimates used in the current period calculations.Intangible assets that have finite useful lives are amortized over their estimated useful lives on a straight-line basis. When facts and circumstancesindicate potential impairment of amortizable intangible assets, the Company evaluates the recoverability of the asset’s carrying value, using estimates offuture cash flows that utilize a discount rate determined by the management to be commensurate with the risk inherent in the Company’s business model overthe remaining asset life. The estimates of future cash flows attributable to intangible assets require significant judgment based on the Company’s historicaland anticipated results. Any impairment loss is measured by the excess of carrying value over fair value.Effective in the fourth quarter of 2013, the Company changed the annual goodwill impairment assessment date for all of its reporting units fromDecember 31st to October 31st, which represented a voluntary change in the annual goodwill impairment testing date. See Note 3 for disclosure regardinggoodwill and intangible assets.Impairment of Long-Lived Assets — Long-lived assets, such as property and equipment, and finite lived intangible assets are reviewed forimpairment whenever events or changes in circumstances indicate that the carrying amount of an asset may not be recoverable and exceeds the asset’s fairvalue. When the carrying value of an asset is more than the sum of the undiscounted cash flows that are expected to result from the asset’s use and eventualdisposition, it is considered to be unrecoverable. Therefore, when an asset’s carrying value will not be recovered and it is more than its fair value theCompany would deem the asset to be impaired. Property and equipment held for disposal are carried at the lower of the current carrying value or fair valueless estimated costs to sell. The Company did not incur any impairment of long-lived assets for the years ended December 31, 2015, 2014 and 2013.F-13Table of ContentsIncome Taxes — The provision for income taxes includes federal, state, local and foreign taxes. Deferred tax assets and liabilities are recognized forthe estimated future tax consequences of temporary differences between the financial statement carrying amounts and their respective tax bases. Deferred taxassets and liabilities are measured using enacted tax rates expected to apply to taxable income in the year in which the temporary differences are expected tobe reversed. Changes to enacted tax rates would result in either increases or decreases in the provision for income taxes in the period of changes. TheCompany evaluates the realizability of deferred tax assets and recognizes a valuation allowance when it is more likely than not that all, or a portion of,deferred tax assets will not be realized.The realization of deferred tax assets is primarily dependent on future earnings. Any reduction in estimated forecasted results may require that werecord valuation allowances against deferred tax assets. Once a valuation allowance has been established, it will be maintained until there is sufficientpositive evidence to conclude that it is more likely than not that the deferred tax assets will be realized. A pattern of sustained profitability will generally beconsidered as sufficient positive evidence to reverse a valuation allowance. If the allowance is reversed in a future period, the income tax provision will becorrespondingly reduced. Accordingly, the increase and decrease of valuation allowances could have a significant negative or positive impact on futureearnings. See Note 10 to the consolidated financial statements for further information.Earnings per Share (“EPS”) — Basic earnings per share is computed by dividing income available to common shareholders by the weighted-averagenumber of shares of common stock outstanding during the period. Diluted earnings per share is computed by dividing income available to commonshareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional sharesof common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstandingstock options, unvested restricted stock and unvested RSUs. The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share byapplication of the treasury stock method.Stock-Based Compensation — The Company recognizes the cost of its share-based incentive awards based on the fair value of the award at the date ofgrant net of estimated forfeitures. The cost is expensed evenly over the service period. The service period is the period over which the employee performs therelated services, which is normally the same as the vesting period. Over time, the forfeiture assumption is adjusted to the actual forfeiture rate and suchchange may affect the timing of the total amount of expense recognized over the vesting period. Equity-based awards that do not require future service areexpensed immediately. Equity-based awards that do not meet the criteria for equity classification are recorded as liabilities and adjusted to fair value at theend of each reporting period.Off-Balance Sheet Financial Instruments — The Company uses the FASB ASC Topic 825, “Financial Instruments.” to identify and disclose off-balance sheet financial instruments, which include credit instruments, such as commitments to make employee loans and related guarantees, standby lettersof credit and certain guarantees issued under customer contracts. The face amount for these items represents the exposure to loss, before considering availablecollateral or the borrower’s ability to repay. Loss contingencies arising from off-balance sheet financial instruments are recorded as liabilities when thelikelihood of loss is probable and an amount or range of loss can be reasonably estimated. The Company does not believe such matters exists that will have amaterial effect on the financial statements.Foreign Currency Translation — Assets and liabilities of consolidated foreign subsidiaries, whose functional currency is the local currency, aretranslated to U.S. dollars at period end exchange rates. Revenues and expenses are translated to U.S. dollars at daily exchange rates. The adjustment resultingfrom translating the financial statements of such foreign subsidiaries to U.S. dollars is reflected as a cumulative translation adjustment and reported as acomponent of accumulated other comprehensive income.The Company reports the effect of exchange rate changes on cash balances held in foreign currencies as a separate item in the reconciliation of thechanges in cash and cash equivalents during the period. Transaction gains and losses are included in the period in which they occur.Risks and Uncertainties — As a result of its global operations, the Company may be subject to certain inherent risks. Concentration of Credit — Financial instruments that potentially subject the Company to significant concentrations of credit risk consist primarily ofemployee loans receivable, cash and cash equivalents, trade accounts receivable and unbilled revenues. The Company maintains cash and cash equivalentsand short-term investments with financial institutions. The Company determined that the Company’s credit policies reflect normal industry terms andbusiness risk and there is no expectation of non-performance by the counterparties. As of December 31, 2015, $103.7 million of total cash was held in CIScountries, with $79.5 million of that in Belarus. Banking and other financial systems in the CIS region are less developed and regulated than in some moredeveloped markets, and bank deposits made by corporate entities in the CIS region are not insured.F-14Table of ContentsChanges in the market behavior or decisions of the Company’s clients could adversely affect the Company’s results of operations. During the yearsended December 31, 2015, 2014 and 2013, revenues from our top five customers were $298,063, $239,396 and $169,987, respectively, representing 32.6%,32.8% and 30.6%, respectively, of total revenues in the corresponding periods. Revenues from our top ten customers were $400,250, $320,126 and $234,955in 2015, 2014 and 2013, respectively, representing 43.8%, 43.9% and 42.3%, respectively, of total revenues in corresponding periods.Foreign currency risk — The Company generates revenues in various global markets based on client contracts obtained in non-U.S. dollar,principally, euros, British pounds sterling, Canadian dollars, and Russian rubles. We incur expenditures in non-U.S. dollar currencies, principally inHungarian forints, euros, Russian rubles, Polish zlotys, Mexican pesos, Hong Kong dollars and China yuan renminbi (“CNY”) associated with our deliverycenters located in the CEE, Europe, Mexico and APAC regions. The Company is exposed to fluctuations in foreign currency exchange rates primarily onaccounts receivable and unbilled revenues from sales in these foreign currencies, and cash flows for expenditures in foreign currencies.Interest rate risk — The Company’s exposure to market risk is influenced primarily by changes in interest rates on interest payments received on cashand cash equivalent deposits and paid on any outstanding balance on the Company’s revolving line of credit, which is subject to a variety of rates dependingon the type and timing of funds borrowed (see Note 12). The Company does not use derivative financial instruments to hedge the risk of interest ratevolatility.Recent Accounting PronouncementsIn November 2015, the FASB issued Accounting Standards Update (“ASU”) 2015-17, Income Taxes (Topic 740): Balance Sheet Classification ofDeferred Taxes. The amendments in this update require that deferred tax liabilities and assets be classified as noncurrent in a classified statement of financialposition to simplify disclosure. The current requirement that deferred tax liabilities and assets of a tax-paying component of an entity be offset and presentedas a single amount is not affected by the amendments in this update. The amendment is effective for fiscal years, and interim periods within those fiscal years,beginning after December 15, 2016. The implementation of this standard is not expected to have a material effect on the Company’s consolidated financialstatements.In September 2015, the FASB issued ASU 2015-16, Business Combinations (Topic 805): Simplifying the Accounting for Measurement-PeriodAdjustments. The amendments in this update require that an acquirer recognize adjustments to provisional amounts that are identified during themeasurement period in the reporting period in which the adjustment amounts are determined. The update eliminates the current requirement toretrospectively adjust provisional amounts recognized at the acquisition date. The amendment is effective for fiscal years, and interim periods within thosefiscal years, beginning after December 15, 2015. The implementation of this standard is not expected to have a material effect on the Company’sconsolidated financial statements.In April 2015, the FASB issued ASU 2015-03, Interest-Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs.The update guides presentation of debt issuance costs and requires that debt issuance costs related to a recognized debt liability be presented in the balancesheet as a direct deduction from the carrying amount of that debt liability, consistent with debt discounts. The recognition and measurement guidance fordebt issuance costs are not affected by this ASU. The amendment is effective for fiscal years, and interim periods within those fiscal years, beginning afterDecember 15, 2015. The implementation of this standard is not expected to have a material effect on the Company’s consolidated financial statements.In November 2014, the FASB issued ASU 2014-17, Business Combinations (Topic 805): Pushdown Accounting. The update provides an acquiredentity with an option to apply pushdown accounting in its separate financial statements upon occurrence of an event in which an acquirer obtains control ofthe acquired entity. An acquired entity may also elect the option to apply pushdown accounting in the reporting period in which the change-in-control eventoccurs. However, if the financial statements for the period in which the most recent change-in-control event occurred already have been issued or madeavailable to be issued, the application of this guidance would be a change in accounting principle. The amendment is effective on November 18, 2014. Theimplementation of this standard did not have a material effect on the Company’s consolidated financial statements.In November 2014, the FASB issued ASU 2014-16, Derivatives and Hedging (Topic 815): Determining Whether the Host Contract in aHybrid Financial Instrument Issued in the Form of a Share Is More Akin to Debt or to Equity. The update aims to eliminate the use of different methods inpractice and thereby reduce existing diversity under GAAP in the accounting for hybrid financial instruments issued in the form of a share. The amendmentsare effective for annual period and interim periods within those annual periods, beginning after December 15, 2015 with early adoption permitted. Theimplementation of this standard is not expected to have a material effect on the Company’s consolidated financial statements as the Company currently doesnot issue hybrid instruments.F-15Table of ContentsIn August 2014, the FASB issued ASU 2014-15, Presentation of Financial Statements-Going Concern (Subtopic 205-40): Disclosure of Uncertaintiesabout an Entity’s Ability to Continue as a Going Concern. The amendments in this update provide guidance about management’s responsibility to evaluatewhether there is substantial doubt about an entity’s ability to continue as a going concern and to provide related footnote disclosures. These amendments aimto reduce diversity in the timing and content of footnote disclosures. The amendments in this update are effective for the annual period ending afterDecember 15, 2016, and for annual periods and interim periods thereafter, with early adoption permitted. The implementation of this standard is not expectedto have a material effect on the Company’s consolidated financial statements.In June 2014, the FASB issued ASU 2014-12, Compensation - Stock Compensation (Topic 718), which requires that a performance target that affectsvesting and that could be achieved after the requisite service period be treated as a performance condition. A reporting entity should apply existing guidancein Topic 718, Compensation - Stock Compensation, as it relates to awards with performance conditions that affect vesting to account for such awards. Thestandard is effective for annual periods and interim periods within those annual periods beginning after December 15, 2015 with early adoption permitted.Entities may apply the amendments in this ASU either: (a) prospectively to all awards granted or modified after the effective date; or (b) retrospectively to allawards with performance targets that are outstanding as of the beginning of the earliest annual period presented in the financial statements and to all new ormodified awards thereafter. The implementation of this standard is not expected to have a material effect on the Company’s consolidated financialstatements.In May 2014, the FASB issued ASU 2014-09, Revenue from Contracts with Customers (Topic 606), which impacts virtually all aspects of an entity’srevenue recognition. The ASU introduces a new five-step revenue recognition model in which an entity should recognize revenue to depict the transfer ofpromised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods orservices. This ASU also requires disclosures sufficient to enable users to understand the nature, amount, timing, and uncertainty of revenue and cash flowsarising from contracts with customers, including qualitative and quantitative disclosures about contracts with customers, significant judgments and changesin judgments, and assets recognized from the costs to obtain or fulfill a contract. This standard will be effective for the Company beginning in its first quarterof 2017. In July 2015, the FASB deferred the effective date until the annual reporting periods (including interim reporting periods within those periods)beginning after December 15, 2017. The Company is currently evaluating the impact this new standard will have on its consolidated financial statements.In April 2014, the FASB issued ASU 2014-08, Reporting Discontinued Operations and Disclosures of Disposals of Components of an Entity, whichchanges the criteria for determining which disposals can be presented as discontinued operations and modifies the related disclosure requirements. To qualifyas a discontinued operation the standard requires a disposal to represent a strategic shift that has, or will have, a major effect on an entity’s operations andfinancial results. The standard also expands the disclosures for discontinued operations and requires new disclosures related to individually materialdispositions that do not qualify as discontinued operations. The standard is effective prospectively for fiscal periods beginning after December 15, 2014,including interim periods within that reporting period, with early adoption permitted. The implementation of this standard did not have a material impact onthe Company’s consolidated financial statements.2.ACQUISITIONSAcquisitions completed during the year ended December 31, 2015 and December 31, 2014 allowed the Company to expand into desirable geographiclocations, complement the existing vertical markets, increase revenue and create new offerings of services currently provided. The Company used theacquisition method of accounting to record these business combinations. Acquisitions were settled in cash and/or stock where a portion of the settlementprice may have been deferred. For some transactions, purchase agreements contain contingent consideration in the form of an earnout obligation.2015 AcquisitionNavigationArts — On July 10, 2015, the Company acquired all of the outstanding equity of NavigationArts, Inc. and its subsidiary, NavigationArts,LLC (collectively “NavigationArts”). The U.S.-based NavigationArts provides digital consulting, architecture and content solutions and is regarded as aleading user-experience agency. The acquisition of NavigationArts added approximately 90 design consultants to the Company’s headcount. In connectionwith the NavigationArts acquisition the Company paid $28,747 as cash consideration, of which $2,670 was placed in escrow for a period of 18 months assecurity for the indemnification obligations of the sellers under the terms of the stock purchase agreement.AGS — On November 16, 2015, the Company acquired all of the outstanding equity of Alliance Consulting Global Holdings, Inc including itswholly-owned direct and indirect subsidiaries Alliance Global Services, Inc., Alliance Global Services, LLC, companies organized under the laws of USA,and Alliance Global Services IT India, a company organized under the laws of India (collectively, “AGS”). AGS provides software product developmentservices and test automation solutions and has multiple locations in the United States and India. The acquisition of AGS added 1,151 IT professionals to theF-16Table of ContentsCompany’s headcount in the United States and India. In connection with the AGS acquisition the Company paid $51,254 as cash consideration, of which$5,000 was placed in escrow for a period of 15 months as security for the indemnification obligations of the sellers under the terms of the stock purchaseagreement. The Company also agreed to make a true-up payment in the amount of $603, that is recognized in the form of deferred consideration.F-17Table of ContentsThe following is a summary of the estimated fair values of the net assets acquired at the date of each respective acquisition during the year endedDecember 31, 2015 as originally reported in the quarterly condensed consolidated financial statements and at December 31, 2015: NavigationArts AGSTotal As OriginallyReported At December 31,2015 At December 31,2015 As OriginallyReported At December 31,2015Cash and cash equivalents$1,317 $1,317 $1,727 $3,044 $3,044Trade receivables and other current assets3,920 3,920 10,600 14,520 14,520Property and equipment and other long-term assets230 230 1,665 1,895 1,895Deferred tax asset— 233 4,996 4,996 5,229Acquired intangible assets1,500 2,800 10,000 11,500 12,800Goodwill23,822 21,764 33,815 57,637 55,579Total assets acquired30,789 30,264 62,803 93,592 93,067Accounts payable and accrued expenses871 871 3,087 3,958 3,958Deferred revenue50 50 1,049 1,099 1,099Due to employees596 596 3,010 3,606 3,606Deferred tax liability525 — 3,800 4,325 3,800Total liabilities assumed2,042 1,517 10,946 12,988 12,463Net assets acquired$28,747 $28,747 $51,857 $80,604 $80,604The above estimated fair values of the assets acquired and liabilities assumed are provisional and based on the information that was available as of theacquisition date and updated for any changes as of December 31, 2015. During the three months ended on December 31, 2015 the Company received apreliminary independent valuation of intangible assets of NavigationArts that resulted in adjustments to goodwill, intangible assets and deferred tax assetand liability with no change to the net assets acquired.The Company is gathering additional information necessary to finalize the estimated fair values of net assets acquired during 2015. The fair valuesreflected are subject to change and such changes could be significant. The Company expects to finalize the valuation and complete the purchase priceallocation as soon as practicable but no later than one year from the respective acquisition dates.The following table presents the estimated fair values and useful lives of intangible assets acquired during the year ended December 31, 2015: NavigationArts AGS Weighted AverageUseful Life (inyears) Amount Weighted AverageUseful Life (inyears) AmountCustomer relationships10 $2,800 10 $10,000Total $2,800 $10,000F-18Table of Contents2014 AcquisitionsThe following table discloses details of purchase price consideration of each of the 2014 acquisitions:Name ofAcquisition Effective Date ofAcquisition Common Shares Fair Value ofCommonShares Cash, Net of WorkingCapital and OtherAdjustments Recorded EarnoutPayable TotalRecordedPurchasePrice MaximumPotentialEarnoutPayable Issued Deferred Issued Deferred Paid Deferred Cash Stock (in shares) (in thousands)Netsoft March 5, 2014 — — $— $— $2,403 $1,022 $1,825 $— $5,250 $1,825Jointech April 30, 2014 — 89,552 — 2,788 10,000 4,000 15,000 5,000 36,788 20,000GGA June 6, 2014 — — — — 14,892 — 11,400 — 26,292 Great Fridays October 31, 2014 — — — — 10,777 — 1,173 — 11,950 1,173 — 89,552 $— $2,788 $38,072 $5,022 $29,398 $5,000 $80,280 Common shares issued in connection with acquisitions, if applicable, are valued at closing market prices as of the effective date of the applicableacquisition. The maximum potential earnout payables disclosed in the foregoing table represent the maximum amount of additional consideration that couldbe paid pursuant to the terms of the purchase agreement for the applicable acquisition. The amounts recorded as earnout payables, which are based upon theestimated future operating results of the acquired businesses within a seven-to twelve-month period subsequent to the acquisition date, are measured at fairvalue as of the acquisition date and are included on that basis in the recorded purchase price consideration in the foregoing table. The Company records anysubsequent changes in the fair value of the earnout obligations in its consolidated income from operations. Please see Note 16 for discussion aroundsignificant inputs and assumptions relating to the earnout obligations. All earnout obligations for these acquisitions have been settled.Netsoft — On March 5, 2014, the Company completed an acquisition of substantially all of the assets and assumed certain specific liabilities of U.S.-based healthcare technology consulting firm Netsoft Holdings LLC and Armenia-based Ozsoft, LLC (collectively, “Netsoft”). As a result of this transaction,substantially all of the employees of Netsoft, including approximately 40 IT professionals, accepted employment with the Company. In connection with theNetsoft acquisition, the Company agreed to issue 2,289 restricted shares of Company common stock as consideration for future services to key managementand employees of Netsoft (the “Netsoft Closing Shares”). The Company agreed to pay deferred consideration consisting partly of 9,154 restricted shares ofCompany common stock. During the three months ended March 31, 2015, the Company issued 16,349 restricted shares of Company common stock toNetsoft for achieving certain performance targets (collectively with the Netsoft Closing Shares, the “Netsoft Employment Shares”). The Netsoft EmploymentShares vest in equal annual installments over a three-year period starting from the date of acquisition. The first such installment vested during the first quarterof 2015. All unvested shares will be forfeited upon termination of services by the Company for cause or by the employee other than for good reason. TheNetsoft Employment Shares had an estimated value of $1,017 at the time of grant and were recorded as stock-based compensation expense over an associatedservice period of three years (Note 13). Under the terms of this agreement, all of the Netsoft Closing Shares, as well as $256, were placed in escrow for a periodof 18 months as security for the indemnification obligations of the sellers under the asset purchase agreement.Jointech — On April 30, 2014, the Company acquired all of the outstanding equity of Joint Technology Development Limited, a company organizedunder the laws of Hong Kong, including its wholly-owned subsidiaries Jointech Software (Shenzhen) Co., Ltd., a company organized under the laws of China,and Jointech Software Pte. Ltd., a company organized under the laws of Singapore (collectively, “Jointech”). Jointech provides strategic technology servicesto multi-national organizations in investment banking, wealth and asset management. As a result of this transaction, substantially all employees of Jointech,including approximately 216 IT professionals, accepted employment with the Company. In connection with the Jointech acquisition, the Company issued89,552 shares of the Company common stock to a former owner of Jointech as consideration for future services on or about the six-month anniversary fromthe date of acquisition (the “Jointech Closing Shares”). Furthermore, during the second quarter of 2015, the Company issued 83,057 restricted shares ofCompany common stock to Jointech for achieving certain performance targets (collectively with the Jointech Closing Shares, the “Jointech EmploymentShares”). The Jointech Employment Shares vest in equal annual installments over a three-year period starting from the date of acquisition. The first suchinstallment vested during the second quarter of 2015.All unvested Jointech Employment Shares will be forfeited upon termination of services for cause by the Company or other than for good reason (asapplicable) by either of the two former owners of the acquired business. The aggregate fair value of the Jointech Employment Shares at the date of grant was$7,788 and will be recorded as stock-based compensation expense over an associated service period of three years (Note 13).F-19Table of ContentsUnder the terms of the agreement, 15% of the total purchase price, in cash and stock, including the Jointech Employment Shares, was placed in anescrow account for a period of 18 months as security for the indemnification obligations of the sellers under the stock purchase agreement.GGA — On June 6, 2014, the Company acquired substantially all of the assets and assumed certain specific liabilities of GGA Software Services, LLC,Institute of Theoretical Chemistry, Inc., and GGA’s Russian affiliate (collectively, “GGA”). Established in 1994, GGA develops scientific informaticsapplications and content databases; creates state-of-the-art algorithms and models; and delivers IT support, maintenance, and QA services to the world’sleading healthcare and life sciences companies. As a result of this transaction, substantially all employees of GGA, including approximately 329 ITprofessionals and 126 scientists, accepted employment with the Company. In connection with the GGA acquisition, the Company agreed to issue 262,277shares of the Company common stock to the former owners of GGA as consideration for future services (the “GGA Closing Shares”). Furthermore, during thesecond quarter of 2015, the Company issued 233,753 restricted shares of Company common stock to the former owners of GGA for achieving certainperformance targets (collectively with the GGA Closing Shares, the “GGA Employment Shares”). The GGA Employment Shares vest in equal annualinstallments over a three-year period starting from the date of acquisition. The first such installment vested during the second quarter of 2015. With respect toeach former owner, all unvested shares will be forfeited upon either termination of services by the Company for cause or by the employee other than for goodreason. The aggregate fair value of the GGA Employment Shares at the date of grant was $20,655 and will be recorded as stock-based expense over anassociated service period of three years (Note 13). Under the terms of the agreement, 102,631 of the GGA Employment Shares were placed into an escrowaccount for a period of 15 months as security for the indemnification obligations of the sellers under the asset purchase agreement.Great Fridays — On October 31, 2014, the Company acquired all of the outstanding equity of Great Fridays Limited and its subsidiaries with intentto expand the Company’s product and design service portfolio. Great Fridays Limited, headquartered in Manchester, UK, with offices in London, SanFrancisco and New York, focuses on bridging the gap between business and design. The acquisition of Great Fridays added approximately 50 creative designprofessionals to the Company’s headcount. In connection with the Great Fridays acquisition, the Company agreed to issue 90,864 shares of the Companycommon stock to the former owners of Great Fridays as consideration for future services (the “Great Fridays Closing Shares”). Furthermore, during the secondquarter of 2015, subject to attainment of specified performance targets, the Company issued to the former owners of Great Fridays 10,092 shares of theCompany common stock (collectively with Great Fridays Closing Shares, the “GF Employment Shares”). The GF Employment Shares vest in equal annualinstallments over a three-year period starting from the date of acquisition. With respect to each former owner, all unvested shares will be forfeited upon eithertermination of services by the Company for cause or by the employee other than for good reason. The aggregate fair value of the GF Employment Shares atthe date of grant was $4,823 and will be recorded as stock-based compensation expense over an associated service period of three years (Note 13). Under theterms of the agreement, 28,390 of the GF Employment Shares were placed into an escrow account for a period of 24 months as security for theindemnification obligations of the sellers under the asset purchase agreement.F-20Table of ContentsThe following is a summary of the estimated fair values of the net assets acquired at the date of each respective acquisition during the year endedDecember 31, 2014 as originally reported in the quarterly condensed consolidated financial statements and at December 31, 2015: Netsoft Jointech GGA Great Fridays Total At OriginallyReported Final as ofMarch 31,2015 As OriginallyReported Final as ofJune 30, 2015 As OriginallyReported Final as ofJune 30,2015 As OriginallyReported Final as ofDecember 31,2015 As OriginallyReported Final as ofDecember 31,2015Cash and cashequivalents$— $— $871 $871 $— $— $259 $259 $1,130 $1,130Trade receivables andother current assets788 788 784 784 5,157 5,377 1,825 1,825 8,554 8,774Property andequipment and otherlong-term assets52 52 338 338 444 306 262 262 1,096 958Deferred tax asset351 — — — 4,463 — — — 4,814 —Acquired intangibleassets1,700 1,700 25,744 15,312 10,959 16,000 5,747 200 44,150 33,212Goodwill2,776 2,779 11,033 23,758 6,496 7,306 6,947 11,262 27,252 45,105Total assetsacquired5,667 5,319 38,770 41,063 27,519 28,989 15,040 13,808 86,996 89,179Accounts payable andaccrued expenses69 69 728 728 2,593 2,593 872 807 4,262 4,197Deferred revenue— — — — — 104 317 317 317 421Due to employees— — 1,254 1,254 — — 624 624 1,878 1,878Deferred tax liability— — — 2,293 — — 1,200 110 1,200 2,403Total liabilitiesassumed69 69 1,982 4,275 2,593 2,697 3,013 1,858 7,657 8,899Net assetsacquired$5,598 $5,250 $36,788 $36,788 $24,926 $26,292 $12,027 $11,950 $79,339 $80,280As of December 31, 2015 the fair values of the assets acquired and liabilities assumed and the related purchase price allocation for the 2014acquisitions have been finalized.As of December 31, 2015, and during the period since the date of each respective acquisition up through December 31, 2015, or the date purchaseaccounting was finalized, as applicable, the Company made updates to the initially reported acquired balances and has finalized valuation of the balances ofNetsoft, Jointech, GGA and Great Fridays. For Netsoft, the deferred tax asset and goodwill were adjusted and decreased the net assets acquired by $348. ForJointech, intangible assets were adjusted to reflect the final fair value of intangible assets acquired and a deferred tax liability was established, bothincreasing goodwill with no change to the net assets acquired. For GGA, the final working capital adjustment was completed, deferred tax assets were nettedwith additional recognized deferred tax liabilities and additional accounts receivable and deferred revenue were recognized. In addition, intangible assetsand property and equipment were adjusted to reflect the final fair value of the assets acquired. These adjustments resulted in an overall increase to goodwilland increased the net assets by $1,366. For Great Fridays, the value of the intangible assets and associated deferred tax liabilities were reduced based on thefinal fair value estimates of acquired intangible assets, which increased goodwill. These adjustments resulted in a decrease in net assets acquired by $77.The adjustments identified above did not significantly impact our previously reported net income of prior periods and, as such, prior period amountshave not been retrospectively adjusted.The following table presents the estimated fair values and useful lives of intangible assets acquired during the year ended December 31, 2014: Netsoft Jointech GGA Great Fridays WeightedAverageUseful Life(in years) Amount WeightedAverageUseful Life(in years) Amount WeightedAverageUseful Life(in years) Amount WeightedAverageUseful Life(in years) Amount Customer relationships10 $1,700 10 $15,000 10 $16,000 3 $200Trade names— — 2 312 — — — —Total $1,700 $15,312 $16,000 $200F-21Table of ContentsAs of December 31, 2015, the companies acquired during 2015 and 2014 have been significantly integrated into the Company and as such, it is notpossible to precisely report their individual post-acquisition results of operations. Pro forma results of operations for the acquisition transactions are notpresented because the effects of the acquisitions would not have been material to the Company’s consolidated results of operations, individually or in theaggregate for the periods presented.3.GOODWILL AND INTANGIBLE ASSETS — NETGoodwill by reportable segment was as follows: North America Europe Russia TotalBalance as of January 1, 2014$16,438 $2,864 $2,966 $22,268Acquisition of Netsoft (Note 2)2,749 — — 2,749Acquisition of Jointech (Note 2)— 17,404 — 17,404Acquisition of GGA (Note 2)12,115 — — 12,115Acquisition of Great Fridays (Note 2)— 6,947 — 6,947Goodwill written-off— — (2,241) (2,241)Net effect of foreign currency exchange rate changes(224) (876) (725) (1,825)Balance as of December 31, 201431,078 26,339 — 57,417Acquisition of NavigationArts (Note 2)23,822 — — 23,822Acquisition of AGS (Note 2)33,815 — — 33,815Netsoft purchase accounting adjustment (Note 2)30 — — 30Jointech purchase accounting adjustment (Note 2)— 6,181 — 6,181GGA purchase accounting adjustment (Note 2)(4,807) — — (4,807)Great Fridays purchase accounting adjustment (Note 2)— 4,315 — 4,315NavigationArts purchase accounting adjustment (Note 2)(2,058) — — (2,058)Effect of net foreign currency exchange rate changes(416) (2,369) — (2,785)Balance as of December 31, 2015$81,464 $34,466 $— $115,930Excluded from the table above is the Other segment. As a result of an operating loss in the Other reporting unit for the three months ended June 30,2011, the Company performed a goodwill impairment test. In assessing impairment in accordance with Accounting Standards Codification, (“ASC”) No. 350,“Intangibles-Goodwill and Other,” the Company determined that the fair value of the Other reporting unit, based on the total of the expected futurediscounted cash flows directly related to the reporting unit, was below the carrying value of the reporting unit. The Company completed the second step ofthe goodwill impairment test, resulting in an impairment charge of $1,697 in the Other operating segment. As of December 31, 2015, 2014 and 2013 the bookvalue of the Other segment was zero.The Company performed an annual goodwill impairment test as of October 31, 2014 in accordance with Accounting Standards Codification, (“ASC”)No. 350, “Intangibles-Goodwill and Other.” In assessing impairment both qualitatively and quantitatively based on the total of the expected futurediscounted cash flows directly related to the reporting unit, the Company determined that the fair value of the Russia reporting unit was below the carryingvalue of the reporting unit. The Company completed the second step of the goodwill impairment test, resulting in an impairment charge of $2,241in theRussia segment. As of December 31, 2015 and 2014 the book value of the Russia segment was zero. All existing assets that related to the Russia segment,excluding goodwill and including any unrecognized intangible assets, were assessed by management and deemed to not be impaired.There were no accumulated impairments losses in North America or Europe operating segments as of December 31, 2015, 2014 or 2013.As part of the AGS acquisition in 2015, substantially all of the employees of AGS continued employment. The Company believes the amount ofgoodwill resulting from the allocation of purchase price to acquire AGS is attributable to the workforce of the acquired business. All of the goodwill wasallocated to the Company’s U.S. operations and is presented within North America.F-22Table of ContentsAs part of the NavigationArts acquisition in 2015, substantially all of the employees of NavigationArts continued employment. The Companybelieves the amount of goodwill resulting from the allocation of purchase price to acquire NavigationArts is attributable to the workforce of the acquiredbusiness. All of the goodwill was allocated to the Company’s U.S. operations and is presented within North America.As part of the Netsoft acquisition in 2014, substantially all of the employees of Netsoft accepted employment with the Company. The Companybelieves the amount of goodwill resulting from the allocation of purchase price to acquire Netsoft is attributable to the workforce of the acquired business.All of the goodwill was allocated to the Company’s U.S. operations and is presented within North America.As part of the Jointech acquisition in 2014, substantially all of the employees of Jointech continued employment. The Company believes the amountof goodwill resulting from the allocation of purchase price to acquire Jointech is attributable to the workforce of the acquired business. Based on thedetermination of the reportable units, Jointech has been placed in the Europe reportable unit based on managerial responsibility and consistent with segmentreporting. All of the goodwill was allocated to the Company’s UK operations and is presented within Europe segment.As part of the GGA acquisition in 2014, substantially all of the employees of GGA accepted employment with the Company. The Company believesthe amount of goodwill resulting from the allocation of purchase price to acquire GGA is attributable to the workforce of the acquired business. All of thegoodwill was allocated to the Company’s U.S. operations and is presented within North America.As part of the Great Fridays acquisition in 2014, substantially all of the employees of Great Fridays continued employment. The Company believes theamount of goodwill resulting from the allocation of purchase price to acquire Great Fridays is attributable to the workforce of the acquired business. All of thegoodwill was allocated to the Company’s U.S. operations and is presented within North America. 2015 Weighted average lifeat acquisition (inyears) Gross carryingamount Accumulatedamortization Net carrying amountClient relationships10 $52,974 $(8,387) $44,587Trade name5 5,853 (3,772) 2,081Non-competition agreements4 746 (554) 192Total $59,573 $(12,713) $46,860 2014 Weighted average lifeat acquisition (inyears) Gross carryingamount Accumulatedamortization Net carrying amountClient relationships10 $48,482 $(4,664) $43,818Trade name5 6,372 (2,894) 3,478Non-competition agreements5 813 (420) 393Total $55,667 $(7,978) $47,689All of the intangible assets have finite lives and as such are subject to amortization. Recognized amortization expense for the years ended December31 is presented in the table below: For the Years Ended December 31, 2015 2014 2013Client relationships $3,961 $3,843 $1,373Trade name 1,280 1,319 1,222Non-competition agreements 175 187 190Total $5,416 $5,349 $2,785F-23Table of ContentsEstimated amortization expenses of the Company’s existing intangible assets for the next five years ending December 31, were as follows: Amount2016 $6,6332017 6,2402018 5,2922019 5,2922020 5,292Thereafter 18,111Total $46,8604.PREPAID AND OTHER CURRENT ASSETSPrepaid and other current assets consisted of the following: December 31, 2015 December 31, 2014Taxes receivable $7,954 $3,966Prepaid expenses 4,693 3,703Other 1,697 1,620Total $14,344 $9,2895.EMPLOYEE LOANS AND ALLOWANCE FOR LOAN LOSSESIn 2012, the Board of Directors of the Company approved the Employee Housing Program (the “Housing Program”), which provides employees withloans to purchase housing in Belarus. The housing is sold directly to employees by independent third parties. The Housing Program was designed as aretention mechanism for the Company’s employees in Belarus and is available to full-time qualified employees who have been with the Company for at leastthree years. The aggregate maximum lending limit of the program is $10,000, with no individual loans exceeding $50. In addition to the housing loans, theCompany issues relocation loans in connection with intra-company transfers, as well as certain other individual loans.During the year ended December 31, 2015, loans issued by the Company under the Housing Program were denominated in U.S. Dollars with a 5-yearterm and carried an interest rate of 7.5%.At December 31, 2015 and December 31, 2014, categories of employee loans included in the loan portfolio were as follows: December 31, 2015 December 31, 2014Housing loans$5,654 $5,848Relocation and other loans684 667Total employee loans6,338 6,515Less: Allowance for loan losses— —Total loans, net of allowance for loan losses$6,338 $6,515During the years ended December 31, 2015 and 2014, the Company issued a total of $3,427 and $3,162 of loans to its employees, respectively, andreceived $3,547 and $3,025 in loan repayments during the same periods, respectively. One of the loans in the amount of $7 was written-off during the yearended December 31, 2015. There were no loans written-off during the year ended December 31, 2014.There were no loans issued to principal officers, directors, or their affiliates during the years ended December 31, 2015, 2014 and 2013.F-24Table of ContentsOn a quarterly basis, the Company reviews the aging of its loan portfolio and evaluates the ability of employees to repay their debt on schedule.Factors considered in the review include historical payment experience, reasons for payment delays and shortfalls, if any, as well as probability of collectingscheduled principal and interest payments. As of December 31, 2015 and December 31, 2014, there were no material past due or non-accrual employee loans.The Company determined no allowance for loan losses was required regarding its employee loans as of December 31, 2015 and December 31, 2014 and therewere no movements in provision for loan losses during the years ended December 31, 2015, 2014 and 2013.6.RESTRICTED CASH AND TIME DEPOSITSRestricted cash and time deposits consisted of the following: December 31, 2015 December 31, 2014Time deposits$30,181 $—Other security deposits238 156Total$30,419 $156As of December 31, 2015, time deposits consisted of a bank deposit of $30,181, earning interest at the rate of 0.74% placed with the Cyprus entity’sbank in the United Kingdom The deposit will mature on March 11, 2016. There were no time deposits as of December 31, 2014.At December 31, 2015 and 2014, security deposits under lease contracts represented amounts retained to secure appropriate performance by theCompany. The Company estimates the probability of non-performance under these contracts as remote, therefore, no provision for losses has been recognizedin respect of these amounts as of December 31, 2015 and 2014.Other restricted cash as of December 31, 2015 and 2014 included loan deposits placed in connection with certain employee loan programs (See Note5).7.PROPERTY AND EQUIPMENT — NETProperty and equipment consisted of the following: Useful Life(in years) December 31, 2015 December 31, 2014Computer hardware 3 $36,612 $32,374Leasehold improvements lease term 6,801 6,287Furniture and fixtures 7 8,990 7,348Purchased computer software 3 4,099 3,606Office equipment 7 8,307 5,043Building 50 34,002 17,123Land improvements 20 1,464 —Construction in progress (Note 15) n/a — 17,885 100,275 89,666Less accumulated depreciation and amortization (39,776) (34,532)Total $60,499 $55,134Depreciation and amortization expense related to property and equipment was $11,979, $12,134 and $12,335 for the years ended December 31, 2015,2014 and 2013, respectively.F-25Table of Contents8.ACCRUED EXPENSES AND OTHER LIABILITIESAccrued expenses consisted of the following: December 31, 2015 December 31, 2014Compensation $47,285 $22,766Subcontractor costs 4,360 2,815Professional fees 2,251 1,162Facilities costs 1,538 757Acquisition related deferred consideration 603 1,022Other 4,347 3,681Total $60,384 $32,2039.TAXES PAYABLECurrent taxes payable consisted of the following: December 31, 2015 December 31, 2014Corporate profit tax $15,057 $7,982Value added taxes 8,553 6,279Payroll, social security, and other taxes 5,862 10,443Total $29,472 $24,704There were no long-term taxes payable as of December 31, 2015 and 2014.10.INCOME TAXESIncome before provision for income taxes included income from domestic operations and income from foreign operations based on the geographiclocation as disclosed in the table below: For the Years Ended December 31, 2015 2014 2013Income before income tax expense: Domestic $(7,687) $(7,229) $7,001Foreign 113,757 94,182 69,769Total $106,070 $86,953 $76,770The provision for income taxes consists of the following: For the Years Ended December 31, 2015 2014 2013Income tax expense (benefit) consists of: Current Federal $19,851 $7,741 $6,150State 2,563 338 310Foreign 14,528 12,504 8,275Deferred Federal (13,361) (3,979) (668)State (1,891) (43) 14Foreign (76) 751 695Total $21,614 $17,312 $14,776F-26Table of ContentsDeferred Income TaxesDeferred income taxes reflect the net effects of temporary differences between the carrying amounts of assets and liabilities for financial reportingpurposes and the amounts used for income tax purposes. Significant components of the Company’s deferred tax assets and liabilities are as follows: December 31, 2015 December 31, 2014Deferred tax assets: Fixed assets $681 $181Intangible assets 1,428 3,789Accrued expenses 10,729 1,282Net operating loss carryforward 5,233 844Deferred revenue 2,162 4,328Stock-based compensation 12,484 6,994Valuation allowance — (149)Restricted stock options — 2Other assets 14 30Deferred tax assets 32,731 17,301Deferred tax liabilities: Fixed assets 646 800Intangible assets 1,598 —Accrued revenue and expenses 511 635Deferred inter-company gain — 405Stock-based compensation 1,672 7,013Other liabilities 912 24Deferred tax liability 5,339 8,877Net deferred tax asset $27,392 $8,424At December 31, 2015, the Company had current and non-current deferred tax assets of $11,847 and $18,312, respectively, and current and non-currenttax liabilities of $365 and $2,402, respectively. At December 31, 2014, the Company had current and non-current deferred tax assets of $2,496 and $11,094,respectively, and current and non-current tax liabilities of $603 and $4,563, respectively.At December 31, 2015, the Company has a net operating loss in China and Singapore related to the acquisition of Jointech and a net operating loss inthe US related to the acquisition of AGS. The net operating losses at Jointech will be utilized prior to its expiration and the net operating loss at AGS will beused each year until expiration. No provision has been made for U.S. or non-U.S. income taxes on the undistributed earnings of subsidiaries or forunrecognized deferred tax liabilities for temporary differences related to basis differences in investments in subsidiaries, as such earnings are expected to bepermanently reinvested, the investments are essentially permanent in duration, or the Company has concluded that no additional tax liability will arise as aresult of the distribution of such earnings. As of December 31, 2015, certain subsidiaries had approximately $443.2 million of undistributed earnings that weintend to permanently reinvest. A liability could arise if our intention to permanently reinvest such earnings were to change and amounts are distributed bysuch subsidiaries or if such subsidiaries are ultimately disposed. It is not practicable to estimate the additional income taxes related to permanently reinvestedearnings or the basis differences related to investments in subsidiaries.F-27Table of ContentsThe reconciliation of federal statutory income tax rate to our effective income tax rate is as follows: For the Years Ended December 31, 2015 2014 2013Statutory federal tax $37,125 $29,564 $26,102Increase/ (decrease) in taxes resulting from: State taxes, net of federal benefit 341 311 368Provision adjustment for current year uncertain tax position — (1,220) —Effect of permanent differences 7,314 8,589 2,524Stock-based compensation 7,591 3,782 1,948Rate differential between U.S. and foreign (31,094) (24,772) (17,279)Change in foreign tax rate 9 754 (59)Change in valuation allowance — 149 489Other 328 155 683Provision for income taxes $21,614 $17,312 $14,776On September 22, 2005, the president of Belarus signed the decree “On the High-Technologies Park” (the “Decree”). The Decree is aimed at boostingthe country’s high-technology sector. The Decree stipulates that member technology companies have a 100% exemption from Belarusian income tax of 18%effective July 1, 2006. The Decree is in effect for a period of 15 years from July 1, 2006. The aggregate dollar benefits derived from this tax holidayapproximated $20.8 million, $16.8 million and $9.7 million for the years ended December 31, 2015, 2014 and 2013, respectively. The benefit the taxholiday had on diluted net income per share approximated $0.40, $0.34 and $0.20 for the years ended December 31, 2015, 2014 and 2013, respectively.Uncertain Tax PositionsThe liability for unrecognized tax benefits is included in income tax liability within the consolidated balance sheets at December 31, 2015 and 2014.At December 31, 2015 and 2014, the total amount of gross unrecognized tax benefits (excluding the federal benefit received from state tax positions) was $62and $200, respectively, (excluding penalties and interest of zero and $12 in 2015 and 2014). Of this total, $62 and $212, respectively, (net of the federalbenefit on state tax issues) represents the amount of unrecognized tax benefits that, if recognized, would favorably affect the effective tax rate in futureperiods.The Company’s policy is to recognize interest and penalties related to uncertain tax positions as a component of its provision for income taxes. Therewas no accrued interest and penalties resulting from such unrecognized tax benefits at December 31, 2015. The total amount of accrued interest and penaltiesresulting from such unrecognized tax benefits was $12 and $189 at December 31, 2014 and 2013, respectively.The beginning to ending reconciliation of the gross unrecognized tax benefits were as follows: For the Years Ended December 31, 2015 2014 2013Balance at January 1 $200 $1,271 $1,271Increases in tax positions in current year — — —Increases in tax positions in prior year — — —Decreases due to settlement (138) (1,071) —Balance at December 31 $62 $200 $1,271There were no tax positions for which it was reasonably possible that unrecognized tax benefits will significantly increase or decrease within 12months of the reporting date.The Company files income tax returns in the United States and in various states, local and foreign jurisdictions. The Company’s significant taxjurisdictions are the U.S. Federal, Pennsylvania, Canada, Russia, Denmark, Germany, Ukraine, the United Kingdom, Hungary, Switzerland and Kazakhstan.As a result of 2015 acquisitions, the Company has an additional filing responsibility in India. The tax years subsequent to 2011 remain open to examinationby the Internal Revenue Service and generally, the tax years subsequent to 2011 remain open to examination by various state and local taxing authoritiesand various foreign taxing authorities.F-28Table of Contents11.EMPLOYEE BENEFITSThe Company offers employees a 401(k) retirement plan, which is a tax-qualified self-funded retirement plan covering substantially all of theCompany’s U.S. employees. Under this plan, employees may elect to defer their current compensation up to the statutory limit defined by the InternalRevenue Service. The Company provides discretionary matching contributions to the plan up to a maximum of 2.0% of the employee’s eligiblecompensation as defined by the plan. Employer contributions are subject to a two year vesting schedule. Employer contributions charged to expense for theyears ended December 31, 2015 and 2014, were $740 and $549, respectively.The Company does not maintain any defined benefit pension plans or any nonqualified deferred compensation plans.12.LONG-TERM DEBTRevolving Line of Credit — On September 12, 2014, the Company entered into a revolving loan agreement (the “2014 Credit Facility”) with PNCBank, National Association; Santander Bank, N.A; and Silicon Valley Bank (collectively the “Lenders”) to replace its former revolving loan agreement. The2014 Credit Facility provides for a borrowing capacity of $100,000, with potential to increase the credit facility up to $200,000 if certain conditions are met.The 2014 Credit Facility matures on September 12, 2019.Borrowings under the 2014 Credit Facility may be denominated in U.S. dollars or, up to a maximum of $50,000 in British pounds sterling, Canadiandollars, euros or Swiss francs (or other currencies as may be approved by the lenders). Borrowings under the 2014 Credit Facility bear interest at either a baserate or Euro-rate plus a margin based on the Company’s leverage ratio. Base rate is equal to the highest of (a) the Federal Funds Open Rate, plus 0.5%, (b) thePrime Rate, and (c) the Daily LIBOR Rate, plus 1.0%.The 2014 Credit Facility is collateralized with: (a) all tangible and intangible assets of the Company, and its U.S.-based subsidiaries including allaccounts, general intangibles, intellectual property rights and equipment; and (b) all of the outstanding shares of capital stock and other equity interests inU.S.-based subsidiaries of the Company, and 65% of the outstanding shares of capital stock and other equity interests in certain of the Company’s foreignsubsidiaries. The 2014 Credit Facility includes customary business and financial covenants and restricts the Company’s ability to make or pay dividends(other than certain intercompany dividends) unless no potential or actual event of default has occurred or would be triggered. As of December 31, 2015, theCompany was in compliance with all covenants contained in the 2014 Credit Facility.During the year ended December 31, 2015, the Company borrowed $35,000 denominated in U.S. dollars under the 2014 Credit Facility, with a LIBOR-based interest rate, which resets on a quarterly basis. As of December 31, 2015, the Company had outstanding debt of $35,000.As of December 31, 2015, the borrowing capacity of the Company under the 2014 Credit Facility was $65,000.13.STOCK-BASED COMPENSATIONThe following costs related to the Company’s stock compensation plans were included in the consolidated statements of income and comprehensiveincome: For the Years Ended December 31, 2015 2014 2013Cost of revenues $13,695 $8,648 $4,823Selling, general and administrative expenses - Acquisition related 18,690 8,829 4,417Selling, general and administrative expenses - All other 13,448 7,143 3,910Total $45,833 $24,620 $13,150Equity Plans2015 Long-Term Incentive Plan — On June 11, 2015, the Company’s stockholders approved the 2015 Long-Term Incentive Plan (“2015 Plan”) to beused to issue equity grants to company personnel. As of December 31, 2015, 6,657,370 shares of common stock remained available for issuance under the2015 Plan. In addition, up to 6,277,028 shares that are subject to outstanding awards as of December 31, 2015 under the 2012 Plan and up to 1,039,861shares that are subject to outstanding awards as of December 31, 2015 under the 2006 Plan and that expire or terminate for any reason prior to exercise or thatwould otherwise have returned to the respective Plan’s share pool under the terms of the Plan, will be available for awards to be granted under the 2015 Plan.F-29Table of Contents2012 Non-Employee Directors Compensation Plan — On January 11, 2012, the Company approved the 2012 Non-Employee Directors CompensationPlan (“2012 Directors Plan”) to be used to issue equity grants to its non-employee directors. The Company authorized 600,000 shares of common stock to bereserved for issuance under the plan. As of December 31, 2015, 554,070 shares of common stock remained available for issuance under the 2012 DirectorsPlan. The 2012 Directors Plan will expire after 10 years and is administered by the Company’s Board of Directors.2012 Long-Term Incentive Plan — On January 11, 2012, the Company approved the 2012 Long-Term Incentive Plan (“2012 Plan”) to be used toissue equity grants to company personnel. In June 2015, the 2012 Plan was discontinued; however, outstanding awards remain subject to the terms of the2012 Plan and any shares that are subject to an award that was previously granted under the 2012 or 2006 Plan and that expire or terminate for any reasonprior to exercise will become available for issuance under the 2015 Plan. All of the options issued pursuant to the 2012 Plan expire 10 years from the date ofgrant.2006 Stock Option Plan — Effective May 31, 2006, the Board of Directors of the Company adopted the 2006 Stock Option Plan (the “2006 Plan”).The 2006 Plan permitted the granting of options to directors, employees, and certain independent contractors. In January 2012, the 2006 Plan wasdiscontinued; however, outstanding awards remain subject to the terms of the 2006 Plan and any shares that are subject to an option award that waspreviously granted under the 2006 Plan and that expire or terminate for any reason prior to exercise will become available for issuance under the 2015 Plan.All of the options issued pursuant to the 2006 Plan expire 10 years from the date of grant. All the outstanding shares under 2006 Plan will expire in January2016.Stock OptionsStock option activity under the Company’s plans is set forth below: Number ofOptions WeightedAverageExercise Price AggregateIntrinsic Value Options outstanding at January 1, 20136,296,709 $7.51 $66,682Options granted1,987,952 23.60 22,543Options exercised(2,156,898) 4.31 (66,066)Options forfeited/cancelled(304,227) 11.50 (7,131)Options outstanding at December 31, 20135,823,536 $13.99 $122,003Options granted2,400,500 32.51 36,584Options exercised(1,171,097) 9.05 (45,321)Options forfeited/cancelled(214,193) 25.33 (4,802)Options outstanding at December 31, 20146,838,746 $20.98 $183,073Options granted2,219,725 62.18 36,492Options exercised(1,405,826) 14.70 (89,860)Options forfeited/cancelled(201,731) 34.48 (8,904)Options outstanding at December 31, 20157,450,914 $34.07 $331,938 Options vested and exercisable at December 31, 20152,446,226 $15.95 $153,305Options expected to vest4,690,899 $42.51 $169,388The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model. The Company recognizes thefair value of each option as compensation expense ratably using the straight-line method over the service period (generally the vesting period). The Black-Scholes model incorporates the following assumptions:a. Expected volatility — the Company estimated the volatility of its common stock at the date of grant using historical volatility of peer publiccompanies for the year ended December 31, 2011. In order to compare volatilities for different interval lengths, the Company expresses volatility in annualterms. During 2014, the Company began including the historical volatility for the Company in conjunction with peer public companies to formulate theestimated volatility regarding the stock options issued in 2015 and 2014. The expected volatility was 34.1% in the year ended December 31, 2015, and45.9% in the years ended December 31, 2014 and 2013.F-30Table of Contentsb. Expected term — the Company estimates the expected term of options granted using the simplified method of determining expected term asoutlined in SEC Staff Accounting Bulletin 107 as the Company does not have sufficient history in order to develop a more precise estimate. The expectedterm was 6.25 years in 2015, 6.20 years in 2014, and 6.24 years in 2013.c. Risk-free interest rate — the Company estimates the risk-free interest rate using the U.S. Treasury yield curve for periods equal to the expected termof the options in effect at the time of grant. The risk-free rate was approximately 1.8%, 2.0% and 1.4% in 2015, 2014 and 2013, respectively.d. Dividends — the Company uses an expected dividend yield of zero since it has never declared or paid any dividends on its common stock. TheCompany intends to retain any earnings to fund future growth and the operation of its business and, therefore, does not anticipate paying any cash dividendsin the foreseeable future.Additionally, the Company determines an annual forfeiture rate and records share-based compensation expense only for those awards that are expectedto vest. The Company applies an estimated forfeiture rate at the time of grant and adjusts those estimated forfeitures to reflect actual forfeitures at leastannually.Aggregate grant-date fair value of stock options issued during the year ended December 31, 2015 was $47,973. The options are typically scheduled tovest over four years from the time of grant, subject to the terms of the applicable plan and stock option agreement. In general, in the event of the participant’stermination of service for any reason, unvested options are forfeited as of the date of such termination without any payment to the participant.As of December 31, 2015, a total of 2,980 shares underlying options exercised through December 31, 2015, were in transfer with the Company’stransfer agent.As of December 31, 2015, total remaining unrecognized compensation cost related to unvested stock options, net of forfeitures, was approximately$64,816, and is expected to be recognized over a weighted-average period of 1.9 years. The weighted average remaining contractual term of the outstandingoptions as of December 31, 2015 was 5.7 years for fully vested and exercisable options and 8.4 years for options expected to vest, respectively.Other AwardsOther awards include awards of restricted stock and restricted stock units (“RSUs”) under the Company’s 2012 Directors Plan, the 2012 Plan and the2015 Plan, after its adoption. In addition, the Company has issued in the past, and may issue in the future its equity securities to compensate employees ofacquired businesses for future services. These issuances are on such terms and at such prices as the Company deems appropriate. Equity-based awards grantedin connection with acquisitions of businesses are generally issued in the form of service-based awards dependent on continuing employment only andperformance-based awards, which are granted and vest only if certain specified performance conditions are met. The awards issued in connection withacquisitions of businesses are subject to the terms and conditions contained in the applicable award agreement and acquisition documents.F-31Table of ContentsService-Based AwardsSummarized activity related to the Company’s service-based awards for the years ended December 31, 2015, 2014 and 2013 was as follows: Number ofShares WeightedAverage GrantDateFair Value PerShare Unvested service-based awards outstanding at January 1, 2013659,872 $17.92Awards granted15,524 23.69Awards vested(330,468) 17.33Unvested service-based awards outstanding at December 31, 2013344,928 $18.74Awards granted523,220 40.41Awards vested(217,668) 17.84Awards forfeited/cancelled(17,038) 21.14Unvested service-based awards outstanding at December 31, 2014633,442 $36.88Awards granted113,614 67.38Awards vested(279,129) 33.66Awards forfeited/cancelled(11,816) 34.47Unvested service-based awards outstanding at December 31, 2015456,111 $46.51For the year ended December 31, 2015, the Company issued a total of 5,295 shares of unvested (“restricted”) common stock under its 2012 DirectorsCompensation Plan with an aggregate grant date fair value of $375. As of December 31, 2015, the aggregate unrecognized compensation expense related tounvested stock under the 2012 Directors Plan was $262. This cost is expected to be recognized over the next 1.2 years using the weighted average method.For the year ended December 31, 2015, the Company issued a total of 84,000 RSUs to certain key management personnel under the 2012 and 2015Plans. The fair value of these RSUs at the time of the grants was $5,492. As of December 31, 2015, the aggregate unrecognized compensation expense for alloutstanding service-based RSUs was $5,691. This cost is expected to be recognized over the next 2.1 years using the weighted average method.For the year ended December 31, 2015, the Company granted a total of 24,319 service-based awards to certain key management personnel ofbusinesses acquired during that period. The aggregate grant date fair value of the awards was $1,789.As of December 31, 2015, total unrecognized compensation cost related to unvested service-based awards was $11,090, which is expected to berecognized over the next 1.5 years using the weighted average method.Performance -Based AwardsIn 2014, the Company granted performance-based awards in connection with the acquisitions completed during that year. The total number of theawards varies based on attainment of certain performance targets pursuant to the terms of the relevant transaction documents. Typically, the vesting period isthree years, with one third of the awards granted vesting in equal installments on the first, second and third anniversaries of the grant. If an eligible employeeleaves the Company prior to a vesting date, the unvested portion of the award generally will be forfeited. The Company periodically evaluates theachievement of the related performance conditions during the applicable performance measurement period and the number of shares expected to bedelivered, and resulting compensation expense is adjusted accordingly. During the year ended December 31, 2015, one-third of the performance-basedawards issued in 2014 acquisitions, vested net of any forfeitures.F-32Table of ContentsSummarized activity related to the Company’s performance-based awards for the years ended December 31, 2015, was as follows: Number ofShares WeightedAverage GrantDate Fair ValuePer ShareUnvested performance-based awards outstanding at January 1, 2014— $—Awards granted387,058 38.18Awards forfeited/cancelled(2,550) 36.57Changes in the number of awards expected to be delivered(12,998) 5.47Unvested performance-based awards outstanding at December 31, 2014371,510 $39.34Awards granted14,000 70.22Awards vested(117,749) 40.39Awards forfeited/cancelled(1,360) 36.57Changes in the number of awards expected to be delivered(19,105) 31.70Unvested performance-based awards outstanding at December 31, 2015247,296 $41.19The aggregated grant date fair value of performance-based awards granted to certain key management personnel of businesses acquired during the yearended December 31, 2015 was $983.As of December 31, 2015, total unrecognized compensation cost related to unvested performance-based awards was $12,679. That cost is expected tobe recognized over the next 1.3 years using the weighted average method.14.EARNINGS PER SHAREBasic earnings per share (“EPS”) is computed by dividing the net income applicable to common stockholders for the period by the weighted averagenumber of shares of common stock outstanding during the same period. Diluted earnings per share is computed by dividing income available to commonshareholders by the weighted-average number of shares of common stock outstanding during the period increased to include the number of additional sharesof common stock that would have been outstanding if the potentially dilutive securities had been issued. Potentially dilutive securities include outstandingstock options, unvested restricted stock and unvested RSUs. The dilutive effect of potentially dilutive securities is reflected in diluted earnings per share byapplication of the treasury stock method.The following table sets forth the computation of basic and diluted earnings per share of common stock as follows: For the Years Ended December 31, 2015 2014 2013Numerator for common earnings per share: Net income $84,456 $69,641 $61,994Numerator for basic and diluted earnings per share $84,456 $69,641 $61,994 Denominator for basic earnings per share: Weighted average common shares outstanding 48,721 47,189 45,754Effect of dilutive securities: Stock options, RSUs and performance-based awards 3,265 2,545 2,604Denominator for diluted earnings per share 51,986 49,734 48,358 Net income per share: Basic $1.73 $1.48 $1.35Diluted $1.62 $1.40 $1.28For the years ended December 31, 2015, 2014 and 2013 a total of 1,637, 2,260 and 1,080 shares underlying equity-based awards, respectively, wereoutstanding but were not included in the computation of diluted earnings per share because the effect was anti-dilutive.F-33Table of Contents15.COMMITMENTS AND CONTINGENCIESThe Company leases office space under operating leases, which expire at various dates. Certain leases contain renewal provisions and generally requirethe Company to pay utilities, insurance, taxes, and other operating expenses. Rent expense under operating lease agreements for the years endedDecember 31, 2015, 2014 and 2013 was $20,065, $18,200, and $15,664 respectively. Future minimum rental payments under operating leases that haveinitial or remaining lease terms in excess of one year as of December 31, 2015 were as follows:Year Ending December 31, OperatingLeases2016 $17,6062017 13,6702018 9,7302019 4,6572020 1,289Thereafter 2,664Total minimum lease payments $49,616Construction in progress — On December 7, 2011, the Company entered into an agreement with IDEAB Project Eesti AS (“IDEAB”) for theconstruction of an office building within the High Technologies Park in Minsk, Belarus (the “Construction Agreement”). At the same time, the Companyentered into a related investment agreement with the Minsk Executive Committee acting on behalf of the Republic of Belarus (the “Investment Agreement”)permitting the Company to use land located in the government’s High Technologies Park to construct the new office building and granting certain taxbenefits. The Construction Agreement committed IDEAB to construct an office building for the Company in Minsk with a completion date of February 28,2014. In April 2014, IDEAB stopped its construction before the building’s completion, for reasons unrelated to the Company’s performance under theConstruction Agreement. In May 2014, IDEAB notified the Company that it was unable to continue as general contractor to complete the construction of thebuilding in time and on the terms agreed. As a result, the Company took control over the construction site. On July 7, 2014, the Company provided IDEABwith notice of termination of the Construction Agreement, effective on or about July 11, 2014. The Company filed a legal action against IDEAB in Belarus inAugust 2014, claiming breach of contract. In September 2014, the court decided in the Company’s favor and directed IDEAB to pay the Company $1,000plus reimbursement of certain expenses. The Company is pursuing recovery from IDEAB of this amount. The Company has filed other lawsuits seekingrecovery from IDEAB of additional amounts (including future work and construction materials) from IDEAB. These lawsuits are in various stages of litigationand it is not possible to estimate the likelihood of recovery.The Investment Agreement specified a completion deadline for construction of September 15, 2012 extended by the parties to December 31, 2014, andfurther extended to October 1, 2015. As of September 30, 2015, the Company had completed the building and began depreciating approximately $22,714 ofcapitalized construction costs.Indemnification Obligations — In the normal course of business, the Company is a party to a variety of agreements under which it may be obligated toindemnify the other party for certain matters. These obligations typically arise in contracts where the Company customarily agrees to hold the other partyharmless against losses arising from a breach of representations or covenants for certain matters such as title to assets and intellectual property rightsassociated with certain arrangements. The duration of these indemnifications varies, and in certain cases, is indefinite.The Company is unable to reasonably estimate the maximum potential amount of future payments under these or similar agreements due to the uniquefacts and circumstances of each agreement and the fact that certain indemnifications provide for no limitation to the maximum potential future paymentsunder the indemnification. Management is not aware of any such matters that historically had or would have a material effect on the financial statements ofthe Company.Litigation — From time to time, the Company is involved in litigation, claims or other contingencies. Management is not aware of any such mattersthat would have a material effect on the consolidated financial statements of the Company.16.FAIR VALUE MEASUREMENTSAs required by the guidance for fair value measurements, financial assets and liabilities are classified in their entirety based on the lowest level of inputthat is significant to the fair value measurement. The fair value hierarchy requires an entity to maximize the use of observable inputs and minimize the use ofunobservable inputs when measuring fair value. Thus, assets and liabilities categorized as Level 3 may be measured at fair value using inputs that areobservable (Levels 1 and 2) andF-34Table of Contentsunobservable (Level 3). Significant unobservable inputs used in the fair value measurement of contingent consideration related to business acquisitions areforecasts of expected future operating results of those businesses as developed by the Company’s management and the probability of achievement of thoseoperating forecasts. Management’s assessment of the significance of a particular input to the fair value measurement requires judgment and may affect thevaluation of assets and liabilities and their placement within the fair value hierarchy levels. During the years ended December 31, 2015 and 2014, there wereno transfers among Level 1, Level 2, or Level 3 classified financial assets and liabilities. Changes in the values of these financial liabilities, if any, aretypically recorded within selling, general and administrative expenses line on the Company’s consolidated statements of income and comprehensive income.The following table tables show the fair values of the Company’s financial assets and liabilities measured at fair value as of December 31, 2015 and2014: As of December 2015 Balance Level 1 Level 2 Level 3Cash and cash equivalents 199,449 199,449 — —Time deposits and restricted cash 30,419 — 30,419 —Employee loans 6,338 — — 6,338Total assets measured at fair value $236,206 $199,449 $30,419 $6,338 Contingent consideration — — — —Performance-based equity awards 5,364 — — 5,364Total liabilities measured at fair value $5,364 $— $— $5,364 As of December 2014 Balance Level 1 Level 2 Level 3Cash and cash equivalents 220,534 220,534 — —Time deposits and restricted cash 156 — 156 —Employee loans 6,515 — — 6,515Total assets measured at fair value $227,205 $220,534 $156 $6,515 Contingent consideration 37,400 — — 37,400Performance-based equity awards 3,223 — — 3,223Total liabilities measured at fair value $40,623 $— $— $40,623The Company classifies its contingent considerations within Level 3 as those inputs are specific to a given consideration and are not observable in themarket. The housing loans are measured at the time of issuance using the Level 3 inputs within the fair value hierarchy because they are valued usingsignificant unobservable inputs. Company issued short-term, non-interest bearing relocation and other loans to employees have a short term and highcertainty of repayment, therefore, their carrying amount is a reasonable estimate of their fair value.The Company analyzes the rate of return that market participants in Belarus would require when investing in unsecured U.S. dollar-denominatedgovernment bonds with similar maturities (a “risk-free rate”) and evaluated a risk premium component to compensate the market participants for the creditand liquidity risks inherent in the loans’ cash flows. As of December 31, 2015 and December 31, 2014, the carrying values of outstanding employee loansand loans issued during those years approximated their fair values.As of December 31, 2014, contingent consideration and performance-based equity awards included amounts payable in cash and stock in connectionwith the acquisitions of businesses completed in the year ended December 31, 2014 (Note 2). As of December 31, 2015, the only financial liabilities relatedto acquisitions of businesses included performance-based equity awards.The fair value of the contingent consideration, which is based on the present value of the expected future payments to be made to the sellers of theacquired businesses, was derived by analyzing the future performance of the acquired businesses using the earnout formula and performance targets specifiedin each purchase agreement and adjusting those amounts to reflectF-35Table of Contentsthe ability of the acquired entities to achieve the stated targets. The measurement period related to the contingent consideration for each 2014 acquisitionwas complete as of June 30, 2015, therefore, the amount of total consideration to be paid is no longer subject to change as of December 31, 2015.A reconciliation of the beginning and ending balances of acquisition-related contractual contingent liabilities using significant unobservable inputs(Level 3) for the years ended December 31, 2015 and 2014, was as follows: AmountContractual contingent liabilities at January 1, 2014 $—Acquisition date fair value of contractual contingent liabilities — Netsoft 1,825Acquisition date fair value of contractual contingent liabilities — Jointech 20,000Acquisition date fair value of contractual contingent liabilities — GGA 11,400Acquisition date fair value of contractual contingent liabilities — Great Fridays 1,173Liability-classified stock-based awards 3,088Changes in fair value of contractual contingent liabilities included in earnings 2,059Changes in fair value of contractual contingent liabilities recorded against goodwill 1,366Effect of net foreign currency exchange rate changes (288)Settlements of contractual contingent liabilities —Contractual contingent liabilities at December 31, 2014 $40,623Liability-classified stock-based awards 5,148Changes in fair value of contractual contingent liabilities included in earnings 4,355Changes in fair value of contractual contingent liabilities recorded against goodwill —Effect of net foreign currency exchange rate changes 246Settlements of contractual contingent liabilities (45,008)Contractual contingent liabilities at December 31, 2015 $5,36417.OPERATING SEGMENTS The Company determines its operating segments and reports segment information in accordance with the management approach, which designatesinternal reporting used by management to make operating decisions and assess performance as the source of the Company’s reportable segments.The Company manages its business primarily based on the geographic managerial responsibility for its client base. As managerial responsibility for aparticular client relationship generally correlates with the client’s geographic location, there is a high degree of similarity between client locations and thegeographic boundaries of the Company’s reportable segments. In some cases, managerial responsibility for a particular client is assigned to a managementteam in another region and is usually based on the strength of the relationship between client executives and particular members of EPAM’s seniormanagement team. In such a case, the client’s activity would be reported through the management team’s reportable segment.The Company’s reportable segments are North America, Europe, Russia and Other. The Company’s Chief Operating Decision Maker (“CODM”)evaluates performance and allocates resources based on the segment’s revenues and operating profit. Segment operating profit is defined as income fromoperations before unallocated costs. Generally, operating expenses for each operating segment have similar characteristics and are subject to similar factors,pressures and challenges. Expenses included in segment operating profit consist principally of direct selling and delivery costs as well as an allocation ofcertain shared services expenses. Certain expenses, such as stock-based compensation are not allocated to specific segments, as management does not believeit is practical as these expenses are not directly attributable to any specific segment and consequently are not allocated to individual segments in internalmanagement reports used by the CODM. Such expenses are separately disclosed as “unallocated” and adjusted only against the Company’s total incomefrom operations.F-36Table of ContentsRevenues from external customers and segment operating profit, before unallocated expenses, for the North America, Europe, Russia and Otherreportable segments were as follows: For the years ended December 31, 2015 2014 2013Total segment revenues: North America $471,603 $374,509 $284,636Europe 400,460 299,279 204,150Russia 37,992 50,663 55,764Other 4,911 5,552 10,493Total segment revenues $914,966 $730,003 $555,043Segment operating profit: North America $112,312 $90,616 $66,814Europe 68,717 50,189 34,573Russia 5,198 7,034 7,077Other (94) (3,220) 844Total segment operating profit $186,133 $144,619 $109,308Intersegment transactions were excluded from the above on the basis that they are neither included into the measure of a segment’s profit and loss bythe CODM, nor provided to the CODM on a regular basis.During the year ended December 31, 2015 and 2014, revenues from one customer, UBS AG, were $130,605 and $97,872, respectively and accountedfor more than 10% of total revenues. Revenue from this customer is reported in the Company’s Europe segment and includes reimbursable expenses. Nocustomer accounted for over 10% of total revenues in 2013.Trade accounts receivable and unbilled revenues are generally dispersed across our clients in proportion to their revenues. As of December 31, 2015,billed and unbilled trade receivables from one customer, UBS AG, individually exceeded 10% and accounted for 12.4% and 19.8% of our total billed andunbilled trade receivables, respectively.F-37Table of ContentsReconciliation of segment revenues and operating profit to consolidated income before provision for income taxes is presented below: For the Years Ended December 31, 2015 2014 2013Total segment revenues $914,966 $730,003 $555,043Unallocated (revenue)/loss (838) 24 74Revenues $914,128 $730,027 $555,117 Total segment operating profit: $186,133 $144,619 $109,308Unallocated amounts: Other (revenues)/loss (838) 24 74Stock-based compensation expense (45,833) (24,620) (13,150)Non-corporate taxes (4,274) (6,882) (3,201)Professional fees (7,104) (5,312) (3,651)Depreciation and amortization (5,581) (7,988) (2,829)Bank charges (1,352) (1,049) (1,194)One-time charges (747) (5,983) —Provision for bad debts — — (36)Other corporate expenses (14,437) (6,626) (8,828)Income from operations 105,967 86,183 76,493Interest and other income, net 4,731 4,769 3,077Change in fair value of contingent consideration — (1,924) —Foreign exchange loss (4,628) (2,075) (2,800)Income before provision for income taxes $106,070 $86,953 $76,770Geographic Area InformationLong-lived assets include property and equipment, net of accumulated depreciation and amortization, and management has determined that it is notpractical to allocate these assets by segment since such assets are used interchangeably among the segments. Geographical information about the Company’slong-lived assets based on physical location of the assets was as follows: December 31, 2015 December 31, 2014Belarus$44,879 $41,652Ukraine4,487 4,392Hungary2,485 2,773Russia2,084 2,196United States1,969 2,001India1,099 —Poland1,088 747Other2,408 1,373Total$60,499 $55,134F-38Table of ContentsInformation about the Company’s revenues by client location is as follows: For the Years Ended December 31, 2015 2014 2013United States $427,433 $318,304 $247,979United Kingdom 164,301 141,366 108,892Switzerland 111,353 87,111 51,941Canada 57,643 49,193 33,759Russia 36,506 48,945 53,328Germany 36,089 25,740 20,261Hong Kong 23,117 13,445 —Sweden 10,589 7,892 5,742Netherlands 9,989 8,838 7,719Belgium 7,916 4,198 —Ireland 5,437 3,667 291Kazakhstan 4,910 5,238 9,886Other locations 9,334 7,680 7,693Reimbursable expenses and other revenues 9,511 8,410 7,626Revenues $914,128 $730,027 $555,117Service Offering InformationInformation about the Company’s revenues by service offering is as follows: For the Years Ended December 31, 2015 2014 2013Software development $644,732 $504,590 $374,426Application testing services 174,259 140,363 109,222Application maintenance and support 70,551 58,840 45,971Infrastructure services 11,311 14,198 14,433Licensing 3,764 3,626 3,439Reimbursable expenses and other revenues 9,511 8,410 7,626Revenues $914,128 $730,027 $555,117F-39Table of Contents18.QUARTERLY FINANCIAL DATA (UNAUDITED)Summarized quarterly results for the two years ended December 31, 2015 and 2014 were as follows: Three Months Ended 2015 March 31 June 30 September 30 December 31 Full Year Revenues $200,045 $217,781 $236,049 $260,253 $914,128Operating expenses: Cost of revenues (exclusive of depreciation andamortization) 125,887 134,256 148,479 158,291 566,913Selling, general and administrative expenses 46,938 55,976 55,431 64,414 222,759Depreciation and amortization expense 4,200 3,903 4,393 4,899 17,395Goodwill impairment loss — — — — —Other operating (income)/expenses, net 200 40 (30) 884 1,094Income from operations 22,820 23,606 27,776 31,765 105,967Interest and other income, net 1,158 1,299 865 1,409 4,731Change in fair value of contingent consideration — — — — —Foreign exchange (loss)/income (5,754) (465) 32 1,559 (4,628)Income before provision for income taxes 18,224 24,440 28,673 34,733 106,070Provision for income taxes 3,510 5,209 5,800 7,095 21,614Net income $14,714 $19,231 $22,873 $27,638 $84,456Comprehensive income $11,984 $22,905 $14,532 $21,939 $71,360Basic net income per share(1) $0.31 $0.40 $0.47 $0.56 $1.73Diluted net income per share(1) $0.29 $0.37 $0.44 $0.52 $1.62(1)Earnings per share amounts for each quarter may not necessarily total to the yearly earnings per share due to the weighting of shares outstanding on a quarterly and year to datebasis. Three Months Ended 2014 March 31 June 30 September 30 December 31 Full Year Revenues $160,384 $174,695 $192,764 $202,184 $730,027Operating expenses: Cost of revenues (exclusive of depreciation andamortization) 102,454 110,102 122,509 121,465 456,530Selling, general and administrative expenses 32,359 38,671 42,875 49,761 163,666Depreciation and amortization expense 3,689 5,451 5,510 2,833 17,483Goodwill impairment loss — — — 2,241 2,241Other operating (income)/expenses, net 25 1,995 35 1,869 3,924Income from operations 21,857 18,476 21,835 24,015 86,183Interest and other income, net 976 1,164 1,261 1,368 4,769Change in fair value of contingent consideration — — — (1,924) (1,924)Foreign exchange (loss)/income (1,241) (1,239) (718) 1,123 (2,075)Income before provision for income taxes 21,592 18,401 22,378 24,582 86,953Provision for income taxes 4,228 3,587 3,338 6,159 17,312Net income $17,364 $14,814 $19,040 $18,423 $69,641Comprehensive income $13,787 $17,708 $10,780 $7,115 $49,390Basic net income per share(1) $0.37 $0.31 $0.40 $0.39 $1.48Diluted net income per share(1) $0.35 $0.30 $0.38 $0.37 $1.40(1)Earnings per share amounts for each quarter may not necessarily total to the yearly earnings per share due to the weighting of shares outstanding on a quarterly and year to datebasis.F-40EXHIBIT 10.12EPAM SYSTEMS, INC.2015 LONG TERM INCENTIVE PLANFORM OF CHIEF EXECUTIVE OFFICERNON-QUALIFIED STOCK OPTION AGREEMENT1. Grant of Option. EPAM Systems, Inc., a Delaware corporation (the “Company”), hereby grants to «Grantee» (“Participant”), on «Date» (the “GrantDate”), an option (the “Option”) to purchase «Number of shares underlying option» shares of Common Stock (the “Shares”), at an exercise price of $«FairMarket Value of Share as of the Grant Date» per Share (the “Exercise Price”) subject to the terms, definitions and provisions of the EPAM Systems, Inc. 2015Long Term Incentive Plan (the “Plan”) adopted by the Company, which is incorporated in this Agreement by reference, and the terms and conditions of thisAgreement. The Option is intended to be a Non-Qualified Stock Option, and is not intended to be an Incentive Stock Option. Unless otherwise defined in thisAgreement, the terms used in this Agreement shall have the meanings defined in the Plan.2. Vesting Schedule. Subject to Section 5, this Option shall vest and become exercisable one-fourth on each of the first, second, third and fourthanniversaries of the Grant Date.3. Exercise of Option. This Option shall be exercisable during its term in accordance with the Vesting Schedule set out in Section 2 as modified bySection 5, if applicable, as follows:(a)Right to Exercise.(i) This Option may not be exercised for a fraction of a share.(ii) In no event may this Option be exercised after the tenth anniversary of the Grant Date (the “Expiration Date”).(b)Method of Exercise.(i) The Participant (or his or her representative, devisee or heir, as applicable) may exercise any portion of the Option that has become exercisable as toall or any of the Shares then available for purchase by delivering to the Company written notice specifying the number of whole Shares to be purchased,together with payment in full of the Payment Amount (as defined in Section 4); provided that (x) any required regulatory filings, including, withoutlimitation, any filings that may be required pursuant to the Hart-Scott-Rodino Act in connection with the exercise of any vested and exercisable portion ofthe Option have been timely filed and any required waiting period under the Hart-Scott-Rodino Act has expired or been terminated or (y) the exercise of thevested and exercisable portion of the Option does not require any such regulatory filings.(iii) The Company is not obligated, and will have no liability for failure, to issue or deliver any Shares upon exercise of the Option unless suchissuance or delivery would comply with the applicable laws, with such compliance determined by the Company in consultation with its legal counsel.Assuming such compliance, for income tax purposes such Shares shall be considered transferred to the Participant on the date on which the Option isexercised with respect to such Shares.(iii) If any vested and exercisable portion of the Option is unexercised as of the Expiration Date, the Shares underlying such portion of the Option lessthe number of Shares having an aggregate Fair Market Value as of the Expiration Date equal to the Payment Amount shall be delivered to the Participant assoon as practicable after the Expiration Date; provided that (x) any required regulatory filings, including, without limitation, any filings that may be requiredpursuant to the Hart-Scott-Rodino Act in connection with the exercise of any vested and exercisable portion of the Option have been timely filed and anyrequired waiting period under the Hart-Scott-Rodino Act has expired or been terminated or (y) the exercise of the vested and exercisable portion of theOption does not require any such regulatory filings; and provided further that the Option shall not be so exercised if the Exercise Price equals or exceeds theFair Market Value of a Share on the Expiration Date.4. Method of Payment. Payment of the aggregate Exercise Price and any required tax withholding (the “Payment Amount”) shall be by any of thefollowing, or a combination of the following, at the election of the Participant:(a) cash or check;(b) cancellation of indebtedness;(c) if permitted by the Committee, in its sole discretion, pursuant to such procedures as the Committee may require, by the Participant’s (x) transferringto the Company, effective as of the exercise date, a number of vested Shares owned anddesignated by the Participant having an aggregate Fair Market Value as of the exercise date equal to the Payment Amount, (y) electing to have the Companyretain a portion of the Shares purchased upon exercise of the Option having an aggregate Fair Market Value as of the exercise date equal to the PaymentAmount(d) if the Common Stock is listed on an exchange or market, and if the Company is at such time permitting broker-assisted cashless exercises, deliveryof a properly executed exercise notice together with irrevocable instructions to a broker participating in such cashless brokered exercise program to deliverpromptly to the Company the amount required to pay the exercise price (and applicable withholding taxes) and in any event in accordance with applicablelaw;(e) by any other method as may be approved by the Committee.5. Termination of Service. Following the Participant’s Termination of Service, Participant (or his or her representative, devisee or heir, as applicable)may exercise the Option only as set forth in this Section 5.(a) Death or Disability. In the event of the Participant’s Termination of Service at any time due to the Participant’s death or Disability, any unvestedportion of the Option shall be forfeited as of the date of such termination without any payment to the Participant, and any vested portion of the Option shallremain exercisable until the earlier of (x) one year following such termination and (y) the Expiration Date, unless the Committee in its sole discretiondetermines that the Option should be exercisable to some greater extent or remain exercisable for some longer period (ending in no event later than theExpiration Date).(b) For Cause. In the event of the Participant’s Termination of Service for Cause (as defined below), the entire unexercised portion of the Option,whether vested or unvested, shall be forfeited as of the date of such termination without any payment to the Participant.“Cause” means the Company’s good faith determination of the Participant’s:(i) willful material breach, or habitual neglect of, the Participant’s duties or obligations in connection with the Participant’s employment or service;(ii) having engaged in willful misconduct, gross negligence or a breach of fiduciary duty, or his or her willful material breach of his or her duties to theCompany or under his or her Employment Agreement, if applicable, or of any Company policies;(iii) having been convicted of, or having entered a plea bargain or settlement admitting guilt for, (x) a felony or (y) any other criminal offenseinvolving moral turpitude, fraud or, in the course of the performance of the Participant’s service to the Company, material dishonesty;(iv) unlawful use or possession of illegal drugs on the Company’s premises or while performing the Participant’s duties and responsibilities to theCompany; or(v) the commission of an act of fraud, embezzlement or material misappropriation, in each case, against the Company or any Affiliate;provided that, in the case of clauses (i) and (ii) above, the Company shall provide the Participant with written notice specifying the circumstancesalleged to constitute Cause, and, if possible, the Participant shall have 30 days following receipt of such notice to cure such circumstances.(c) For Any Other Reason. In the event of the Participant’s Termination of Service at any time under circumstances not described in Sections 5(a) or5(b) herein or Section 11(b) of the Plan, any unvested portion of the Option shall be forfeited as of the date of such termination without any payment to theParticipant, and any vested portion of the Option shall remain exercisable until the earlier of (x) 90 days following such termination and (y) the ExpirationDate, unless the Committee in its sole discretion determines that the Option should be exercisable to some greater extent or remain exercisable for somelonger period (ending in no event later than the Expiration Date).For purposes of Section 11(b) of the Plan, “Good Reason” means “Good Reason” as defined in the Participant’s Employment Agreement, if any, or ifnot so defined, the occurrence of any of the following events, in each case without the Participant’s consent:(i) a reduction in the Participant’s base compensation and cash incentive opportunity, other than any such reduction that applies generally to similarlysituated employees or executives of the Company;(ii) relocation of the geographic location of the Participant’s principal place of employment or service by more than 50 miles from the Participant’sprincipal place of employment or service; or(iii) a material reduction in the Participant’s title, duties, responsibilities or authority;provided that, in each case, (A) the Participant shall provide the Company with written notice specifying the circumstances alleged to constitute GoodReason within 90 days following the first occurrence of such circumstances, (B) if possible, the Company shall have 30 days following receipt of such noticeto cure such circumstances, and (C) if the Company has not cured such circumstances within such 30-day period, the Participant shall terminate his or heremployment or service not later than 60 days after the end of such 30-day period.6. Non-Transferability of Option. This Option may not be transferred in any manner otherwise than (i) by will or by the laws of descent or distributionor (ii) pursuant to an award transfer program adopted by the Company and in accordance with such procedures as the Committee (in its discretion) mayspecify with respect to the administration and operation of such program. This Option may be exercised during the lifetime of the Participant only by him orher or a valid transferee (which shall include specifically any financial institution, or other entity approved by the Company). The terms of this Option shallbe binding upon the executors, administrators, heirs, successors and assigns of the Participant and in order to effect a valid transfer, the transferee (which shallinclude specifically any financial institution, or other entity approved by the Company) shall execute an agreement reflecting such terms and conditions thatthe Committee deems necessary to facilitate such transfer.7. Miscellaneous Provisions.(a)Notices. All notices, requests and other communications under this Agreement shall be in writing and shall be delivered in person (bycourier or otherwise), mailed by certified or registered mail, return receipt requested, or sent by facsimile transmission, to the contact details below. Theparties may use e-mail delivery, so long as the message is clearly marked, sent to the e-mail address(es) set forth below, and a delivery receipt and read receiptare made part of the message. E-mail delivery will be deemed to occur when the send receives confirmation that such message has been received and read bythe recipient.if to the Company, to: EPAM Systems, Inc.41 University DriveNewtown, Pennsylvania 18940Attention: General CounselFacsimile: 267-759-8989E-mail: Ginger_Mosier@epam.com if to the Participant, to the address, facsimile number or e-mail address that the Participant most recently provided to the Company, or to such otheraddress, facsimile number or e-mail address as such party may hereafter specify for the purpose by notice to the other parties hereto.(b)Effect of Agreement. The Participant acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the termsand provisions thereof (and has had an opportunity to consult counsel regarding the Option terms), and hereby accepts this Option and agrees to be bound byits contractual terms as set forth herein and in the Plan. The Participant acknowledges and agrees that the grant of this Option constitutes additionalconsideration to the Participant for the Participant’s continued and future compliance with any restrictive covenants in favor of the Company by which theParticipant is otherwise bound. The Participant hereby agrees to accept as binding, conclusive and final all decisions and interpretations of the Committeeregarding any questions relating to the Option. In the event of a conflict between the terms and provisions of the Plan and the terms and provisions of thisAgreement, the Plan terms and provisions shall prevail. The Agreement, including the Plan, constitutes the entire agreement between the Participant and theCompany on the subject matter hereof and supersedes all proposals, written or oral, and all other communications between the parties relating to such subjectmatter.(c)Amendment; Waiver. No amendment or modification of any provision of this Agreement shall be effective unless signed in writing byor on behalf of the Company and the Participant, except that the Company may amend or modify this Agreement without the Participant’s consent inaccordance with the provisions of the Plan or as otherwise set forth in this Agreement. No waiver of any breach or condition of this Agreement shall bedeemed to be a waiver of any other or subsequent breach or condition whether of like or different nature. Any amendment or modification of or to anyprovision of this Agreement, or any waiver of any provision of this Agreement, shall be effective only in the specific instance and for the specific purpose forwhich made or given.(d)Successors and Assigns; No Third Party Beneficiaries. This Agreement shall inure to the benefit of and be binding upon the Companyand the Participant and their respective heirs, successors, legal representatives and permitted assigns. Nothing in this Agreement, expressed or implied, isintended to confer on any Person other than the Company and the Participant, and their respective heirs, successors, legal representatives and permittedassigns, any rights, remedies, obligations or liabilities under or by reason of this Agreement.(e)Severability. If any provision of this Agreement shall be declared by any court or arbitrator of competent jurisdiction to be invalid,illegal or incapable of being enforced in whole or in part, the remaining conditions and provisions or portions thereof shall nevertheless remain in full forceand effect and enforceable to the extent they are valid, legal and enforceable.(f)Dispute Resolution. If any dispute arising out of or relating to this Agreement or the Plan, or the breach thereof, cannot be settled throughnegotiation, the parties agree first to try in good faith to settle such dispute by mediation. If the parties fail to settle such dispute within 30 days after thecommencement of such mediation, such dispute shall be settled by arbitration conducted in the state of Pennsylvania and judgment on the arbitral awardrendered may be entered in any court having jurisdiction thereof.IN WITNESS WHEREOF, the parties have executed this Agreement as of the day and year first written above. EPAM SYSTEMS, INC. By: Name: Title: ParticipantEXHIBIT 10.13EPAM SYSTEMS, INC.2015 LONG TERM INCENTIVE PLANFORM OF CHIEF EXECUTIVE OFFICERRESTRICTED STOCK UNIT AWARD AGREEMENT1. Grant of RSUs. EPAM Systems, Inc., a Delaware corporation (the “Company”), hereby grants to «Grantee» (the “Participant”), on «Date» (the“Grant Date”), «Number of Shares underlying award» restricted share units (the “RSUs”), subject to the terms, definitions and provisions of the EPAMSystems, Inc. 2015 Long Term Incentive Plan (the “Plan”) adopted by the Company, which is incorporated in this Agreement by reference, and the terms andconditions of this Agreement. Each RSU shall represent the right to receive one Share upon the vesting of such RSU in accordance with this Agreement.Unless otherwise defined in this Agreement, the terms used in this Agreement shall have the meanings defined in the Plan.2. Vesting Schedule and Distribution. Subject to Section 5, the RSUs shall vest and become non-forfeitable one-fourth on each of the first, second,third and fourth anniversaries of the Grant Date. Subject to the provisions of this Agreement, upon the vesting of any of the RSUs, the Company shalldistribute to the Participant, on or within 30 days after the date of such vesting, one Share for each such RSU; provided that (x) any required regulatoryfilings, including, without limitation, any filings that may be required pursuant to the Hart-Scott-Rodino Act in connection with the vesting and settlement ofthe RSUs, have been timely filed and any required waiting period under the Hart-Scott-Rodino Act has expired or been terminated or (y) the vesting andsettlement of the RSUs do not require any such regulatory filings.3. Voting Rights. The Participant shall have no voting rights with respect to the RSUs unless and until the Participant becomes the record owner ofthe Shares underlying the RSUs.4. Dividend Equivalents. The Participant shall not be eligible to receive dividend equivalents with respect to the RSUs unless and until theParticipant becomes the record owner of the Shares underlying the RSUs.5. Termination of Service. Following the Participant’s Termination of Service, the RSUs shall vest and settle or be forfeited as set forth in thisSection 5.(a) Death or Disability. In the event of the Participant’s Termination of Service at any time due to the Participant’s death or Disability, any unvestedRSUs shall be forfeited as of the date of such termination without any payment to the Participant.(b) For Cause. In the event of the Participant’s Termination of Service for Cause (as defined below), any unvested RSUs shall be forfeited as of thedate of such termination without any payment to the Participant.“Cause” means the Company’s good faith determination of the Participant’s:(i) willful material breach, or habitual neglect of, the Participant’s duties or obligations in connection with the Participant’s employment or service;(ii) having engaged in willful misconduct, gross negligence or a breach of fiduciary duty, or his or her willful material breach of his or her duties to theCompany or under his or her Employment Agreement, if applicable, or of any Company policies;(iii) having been convicted of, or having entered a plea bargain or settlement admitting guilt for, (x) a felony or (y) any other criminal offenseinvolving moral turpitude, fraud or, in the course of the performance of the Participant’s service to the Company, material dishonesty;(iv) unlawful use or possession of illegal drugs on the Company’s premises or while performing the Participant’s duties and responsibilities to theCompany; or(v) the commission of an act of fraud, embezzlement or material misappropriation, in each case, against the Company or any Affiliate;provided that, in the case of clauses (i) and (ii) above, the Company shall provide the Participant with written notice specifying the circumstancesalleged to constitute Cause, and, if possible, the Participant shall have 30 days following receipt of such notice to cure such circumstances.(c) For Any Other Reason. In the event of the Participant’s Termination of Service at any time under circumstances not described in Sections 5(a) or5(b) herein or Section 11(b) of the Plan, any unvested RSUs shall be forfeited as of the date of such termination without any payment to the Participant.For purposes of Section 11(b) of the Plan, “Good Reason” means “Good Reason” as defined in the Participant’s Employment Agreement, if any, or ifnot so defined, the occurrence of any of the following events, in each case without the Participant’s consent:(i) a reduction in the Participant’s base compensation and cash incentive opportunity, other than any such reduction that applies generally to similarlysituated employees or executives of the Company;(ii) relocation of the geographic location of the Participant’s principal place of employment or service by more than 50 miles from the Participant’sprincipal place of employment or service; or(iii) a material reduction in the Participant’s title, duties, responsibilities or authority;provided that, in each case, (A) the Participant shall provide the Company with written notice specifying the circumstances alleged to constitute GoodReason within 90 days following the first occurrence of such circumstances, (B) if possible, the Company shall have 30 days following receipt of such noticeto cure such circumstances, and (C) if the Company has not cured such circumstances within such 30-day period, the Participant shall terminate his or heremployment or service not later than 60 days after the end of such 30-day period.6. Non-Transferability Until Distribution. The RSUs shall not be assigned, sold, transferred or otherwise be subject to alienation by the Participant.Upon the distribution of Shares underlying RSUs in accordance with Section 2, such Shares shall be fully assignable, saleable and transferable by theParticipant. Any assignment, sale, transfer or other alienation with respect to the Shares issuable upon the vesting of the RSUs shall be in accordance withapplicable securities laws.7. Miscellaneous Provisions.(a)Notices. All notices, requests and other communications under this Agreement shall be in writing and shall be delivered in person (bycourier or otherwise), mailed by certified or registered mail, return receipt requested, or sent by facsimile transmission, to the contact details below. Theparties may use e-mail delivery, so long as the message is clearly marked, sent to the e-mail address(es) set forth below, and a delivery receipt and read receiptare made part of the message. E-mail delivery will be deemed to occur when the send receives confirmation that such message has been received and read bythe recipient.if to the Company, to: EPAM Systems, Inc.41 University DriveNewtown, Pennsylvania 18940Attention: General CounselFacsimile: 267-759-8989E-mail: Ginger_Mosier@epam.com if to the Participant, to the address, facsimile number or e-mail address that the Participant most recently provided to the Company, or to such otheraddress, facsimile number or e-mail address as such party may hereafter specify for the purpose by notice to the other parties hereto.(b)Effect of Agreement. The Participant acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the termsand provisions thereof (and has had an opportunity to consult counsel regarding the terms of the RSUs), and hereby accepts the RSUs and agrees to be boundby its contractual terms as set forth herein and in the Plan. The Participant acknowledges and agrees that the grant of the RSUs constitutes additionalconsideration to the Participant for the Participant’s continued and future compliance with any restrictive covenants in favor of the Company by which theParticipant is otherwise bound. The Participant hereby agrees to accept as binding, conclusive and final all decisions and interpretations of the Committeeregarding any questions relating to the RSUs. In the event of a conflict between the terms and provisions of the Plan and the terms and provisions of thisAgreement, the Plan terms and provisions shall prevail. The Agreement, including the Plan, constitutes the entire agreement between the Participant and theCompany on the subject matter hereof and supersedes all proposals, written or oral, and all other communications between the parties relating to such subjectmatter.(c)Amendment; Waiver. No amendment or modification of any provision of this Agreement shall be effective unless signed in writing byor on behalf of the Company and the Participant, except that the Company may amend or modifythis Agreement without the Participant’s consent in accordance with the provisions of the Plan or as otherwise set forth in this Agreement. No waiver of anybreach or condition of this Agreement shall be deemed to be a waiver of any other or subsequent breach or condition whether of like or different nature. Anyamendment or modification of or to any provision of this Agreement, or any waiver of any provision of this Agreement, shall be effective only in the specificinstance and for the specific purpose for which made or given.(d)Successors and Assigns; No Third Party Beneficiaries. This Agreement shall inure to the benefit of and be binding upon the Companyand the Participant and their respective heirs, successors, legal representatives and permitted assigns. Nothing in this Agreement, expressed or implied, isintended to confer on any Person other than the Company and the Participant, and their respective heirs, successors, legal representatives and permittedassigns, any rights, remedies, obligations or liabilities under or by reason of this Agreement.(e)Severability. If any provision of this Agreement shall be declared by any court or arbitrator of competent jurisdiction to be invalid,illegal or incapable of being enforced in whole or in part, the remaining conditions and provisions or portions thereof shall nevertheless remain in full forceand effect and enforceable to the extent they are valid, legal and enforceable.(f)Dispute Resolution. If any dispute arising out of or relating to this Agreement or the Plan, or the breach thereof, cannot be settled throughnegotiation, the parties agree first to try in good faith to settle such dispute by mediation. If the parties fail to settle such dispute within 30 days after thecommencement of such mediation, such dispute shall be settled by arbitration conducted in the state of Pennsylvania and judgment on the arbitral awardrendered may be entered in any court having jurisdiction thereof.IN WITNESS WHEREOF, the parties have executed this Agreement as of the day and year first written above. EPAM SYSTEMS, INC. By: Name: Title: ParticipantEXHIBIT 10.14EPAM SYSTEMS, INC.2015 LONG TERM INCENTIVE PLANSENIOR MANAGEMENT NON-QUALIFIED STOCK OPTION AGREEMENT1. Grant of Option. EPAM Systems, Inc., a Delaware corporation (the “Company”), hereby grants to «Optionee» (“Participant”), on «Date» (the “GrantDate”), an option (the “Option”) to purchase «Number of shares underlying option» shares of Common Stock (the “Shares”), at an exercise price of $«FairMarket Value of Share as of the Grant Date» per Share (the “Exercise Price”) subject to the terms, definitions and provisions of the EPAM Systems, Inc. 2015Long Term Incentive Plan (the “Plan”) adopted by the Company, which is incorporated in this Agreement by reference. The Option is intended to be a Non-Qualified Stock Option, and is not intended to be an Incentive Stock Option. Unless otherwise defined in this Agreement, the terms used in this Agreementshall have the meanings defined in the Plan.2. Vesting Schedule. Subject to Section 5, this Option shall vest and become exercisable one-fourth on each of the first, second, third and fourthanniversaries of the Grant Date.3. Exercise of Option. This Option shall be exercisable during its term in accordance with the Vesting Schedule set out in Section 2 as modified bySection 5, if applicable, as follows:(a)Right to Exercise.(i) This Option may not be exercised for a fraction of a share.(ii) In no event may this Option be exercised after the tenth anniversary of the Grant Date (the “Expiration Date”).(b)Method of Exercise.(i) The Participant (or his or her representative, devisee or heir, as applicable) may exercise any portion of the Option that has become exercisable as toall or any of the Shares then available for purchase by delivering to the Company written notice specifying the number of whole Shares to be purchased,together with payment in full of the Payment Amount (as defined in Section 4).(iii) The Company is not obligated, and will have no liability for failure, to issue or deliver any Shares upon exercise of the Option unless suchissuance or delivery would comply with the applicable laws, with such compliance determined by the Company in consultation with its legal counsel.Assuming such compliance, for income tax purposes such Shares shall be considered transferred to the Participant on the date on which the Option isexercised with respect to such Shares.(iii) If any vested and exercisable portion of the Option is unexercised as of the Expiration Date, the Shares underlying such portion of the Option lessthe number of Shares having an aggregate Fair Market Value as of the Expiration Date equal to the Payment Amount shall be delivered to the Participant assoon as practicable after the Expiration Date, provided that the Option shall not be so exercised if the Exercise Price equals or exceeds the Fair Market Valueof a Share on the Expiration Date.4. Method of Payment. Payment of the aggregate Exercise Price and any required tax withholding (the “Payment Amount”) shall be by any of thefollowing, or a combination of the following, at the election of the Participant:(a) cash or check;(b) cancellation of indebtedness;(c) if permitted by the Committee, in its sole discretion, pursuant to such procedures as the Committee may require, by the Participant’s (x) transferringto the Company, effective as of the exercise date, a number of vested Shares owned and designated by the Participant having an aggregate Fair Market Valueas of the exercise date equal to the Payment Amount, (y) electing to have the Company retain a portion of the Shares purchased upon exercise of the Optionhaving an aggregate Fair Market Value as of the exercise date equal to the Payment Amount(d) if the Common Stock is listed on an exchange or market, and if the Company is at such time permitting broker-assisted cashless exercises, deliveryof a properly executed exercise notice together with irrevocable instructions to a broker participating in such cashless brokered exercise program to deliverpromptly to the Company the amount required to pay the exercise price (and applicable withholding taxes) and in any event in accordance with applicablelaw;(e) by any other method as may be approved by the Committee.5. Termination of Service. Following the Participant’s Termination of Service, Participant (or his or her representative, devisee or heir, as applicable)may exercise the Option only as set forth in this Section 5.(a) Death or Disability. In the event of the Participant’s Termination of Service at any time due to the Participant’s death or Disability, any unvestedportion of the Option shall be forfeited as of the date of such termination without any payment to the Participant, and any vested portion of the Option shallremain exercisable until the earlier of (x) one year following such termination and (y) the Expiration Date, unless the Committee in its sole discretiondetermines that the Option should be exercisable to some greater extent or remain exercisable for some longer period (ending in no event later than theExpiration Date).(b) For Cause. In the event of the Participant’s Termination of Service for Cause (as defined below), the entire unexercised portion of the Option,whether vested or unvested, shall be forfeited as of the date of such termination without any payment to the Participant.“Cause” means the Company’s good faith determination of the Participant’s:(i) willful material breach, or habitual neglect of, the Participant’s duties or obligations in connection with the Participant’s employment or service;(ii) having engaged in willful misconduct, gross negligence or a breach of fiduciary duty, or his or her willful material breach of his or her duties to theCompany or under his or her Employment Agreement, if applicable, or of any Company policies;(iii) having been convicted of, or having entered a plea bargain or settlement admitting guilt for, (x) a felony or (y) any other criminal offenseinvolving moral turpitude, fraud or, in the course of the performance of the Participant’s service to the Company, material dishonesty;(iv) unlawful use or possession of illegal drugs on the Company’s premises or while performing the Participant’s duties and responsibilities to theCompany; or(v) the commission of an act of fraud, embezzlement or material misappropriation, in each case, against the Company or any Affiliate;provided that, in the case of clauses (i) and (ii) above, the Company shall provide the Participant with written notice specifying the circumstancesalleged to constitute Cause, and, if possible, the Participant shall have 30 days following receipt of such notice to cure such circumstances.(c) For Any Other Reason. In the event of the Participant’s Termination of Service at any time under circumstances not described in Sections 5(a) or5(b) herein or Section 11(b) of the Plan, any unvested portion of the Option shall be forfeited as of the date of such termination without any payment to theParticipant, and any vested portion of the Option shall remain exercisable until the earlier of (x) 90 days following such termination and (y) the ExpirationDate, unless the Committee in its sole discretion determines that the Option should be exercisable to some greater extent or remain exercisable for somelonger period (ending in no event later than the Expiration Date).For purposes of Section 11(b) of the Plan, “Good Reason” means “Good Reason” as defined in the Participant’s Employment Agreement, if any, or ifnot so defined, the occurrence of any of the following events, in each case without the Participant’s consent:(i) a reduction in the Participant’s base compensation and cash incentive opportunity, other than any such reduction that applies generally to similarlysituated employees or executives of the Company;(ii) relocation of the geographic location of the Participant’s principal place of employment or service by more than 50 miles from the Participant’sprincipal place of employment or service; or(iii) a material reduction in the Participant’s title, duties, responsibilities or authority;provided that, in each case, (A) the Participant shall provide the Company with written notice specifying the circumstances alleged to constitute GoodReason within 90 days following the first occurrence of such circumstances, (B) if possible, the Company shall have 30 days following receipt of such noticeto cure such circumstances, and (C) if the Company has not cured such circumstances within such 30-day period, the Participant shall terminate his or heremployment or service not later than 60 days after the end of such 30-day period.6. Non-Transferability of Option. This Option may not be transferred in any manner otherwise than (i) by will or by the laws of descent or distributionor (ii) pursuant to an award transfer program adopted by the Company and in accordance with such procedures as the Committee (in its discretion) mayspecify with respect to the administration and operation of such program. This Option may be exercised during the lifetime of the Participant only by him orher or a valid transferee (which shall include specifically any financial institution, or other entity approved by the Company). The terms of this Option shallbe binding upon the executors, administrators, heirs, successors and assigns of the Participant and in order to effect a valid transfer, the transferee (which shallinclude specifically any financial institution, or other entity approved by the Company) shall execute an agreement reflecting such terms and conditions thatthe Committee deems necessary to facilitate such transfer.7. Miscellaneous Provisions.(a)Notices. All notices, requests and other communications under this Agreement shall be in writing and shall be delivered in person (bycourier or otherwise), mailed by certified or registered mail, return receipt requested, or sent by facsimile transmission, to the contact details below. Theparties may use e-mail delivery, so long as the message is clearly marked, sent to the e-mail address(es) set forth below, and a delivery receipt and read receiptare made part of the message. E-mail delivery will be deemed to occur when the send receives confirmation that such message has been received and read bythe recipient. if to the Company, to: EPAM Systems, Inc.41 University DriveNewtown, Pennsylvania 18940Attention: General CounselFacsimile: 267-759-8989E-mail: Ginger_Mosier@epam.com if to the Participant, to the address, facsimile number or e-mail address that the Participant most recently provided to the Company, or to such otheraddress, facsimile number or e-mail address as such party may hereafter specify for the purpose by notice to the other parties hereto.(b)Effect of Agreement. The Participant acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the termsand provisions thereof (and has had an opportunity to consult counsel regarding the Option terms), and hereby accepts this Option and agrees to be bound byits contractual terms as set forth herein and in the Plan. The Participant acknowledges and agrees that the grant of this Option constitutes additionalconsideration to the Participant for the Participant’s continued and future compliance with any restrictive covenants in favor of the Company by which theParticipant is otherwise bound. The Participant hereby agrees to accept as binding, conclusive and final all decisions and interpretations of the Committeeregarding any questions relating to the Option. In the event of a conflict between the terms and provisions of the Plan and the terms and provisions of thisAgreement, the Plan terms and provisions shall prevail. The Agreement, including the Plan, constitutes the entire agreement between the Participant and theCompany on the subject matter hereof and supersedes all proposals, written or oral, and all other communications between the parties relating to such subjectmatter.(c)Amendment; Waiver. No amendment or modification of any provision of this Agreement shall be effective unless signed in writing byor on behalf of the Company and the Participant, except that the Company may amend or modify this Agreement without the Participant’s consent inaccordance with the provisions of the Plan or as otherwise set forth in this Agreement. No waiver of any breach or condition of this Agreement shall bedeemed to be a waiver of any other or subsequent breach or condition whether of like or different nature. Any amendment or modification of or to anyprovision of this Agreement, or any waiver of any provision of this Agreement, shall be effective only in the specific instance and for the specific purpose forwhich made or given.(d)Successors and Assigns; No Third Party Beneficiaries. This Agreement shall inure to the benefit of and be binding upon the Companyand the Participant and their respective heirs, successors, legal representatives and permitted assigns. Nothing in this Agreement, expressed or implied, isintended to confer on any Person other than the Company and the Participant, and their respective heirs, successors, legal representatives and permittedassigns, any rights, remedies, obligations or liabilities under or by reason of this Agreement.(e)Severability. If any provision of this Agreement shall be declared by any court or arbitrator of competent jurisdiction to be invalid,illegal or incapable of being enforced in whole or in part, the remaining conditions and provisions or portions thereof shall nevertheless remain in full forceand effect and enforceable to the extent they are valid, legal and enforceable.(f)Dispute Resolution. If any dispute arising out of or relating to this Agreement or the Plan, or the breach thereof, cannot be settledthrough negotiation, the parties agree first to try in good faith to settle such dispute by mediation. If the parties fail to settle such dispute within 30 days afterthe commencement of such mediation, such dispute shall be settled by arbitration conducted in the state of Pennsylvania and judgment on the arbitral awardrendered may be entered in any court having jurisdiction thereof.IN WITNESS WHEREOF, the parties have executed this Agreement as of the day and year first written above. EPAM SYSTEMS, INC. By: Name: Title: ParticipantEXHIBIT 10.15EPAM SYSTEMS, INC.2015 LONG TERM INCENTIVE PLANFORM OF SENIOR MANAGEMENT RESTRICTED STOCK UNIT AWARD AGREEMENT1. Grant of RSUs. EPAM Systems, Inc., a Delaware corporation (the “Company”), hereby grants to «Grantee» (the “Participant”), on «Date» (the“Grant Date”), «Number of Shares underlying award» restricted share units (the “RSUs”), subject to the terms, definitions and provisions of the EPAMSystems, Inc. 2015 Long Term Incentive Plan (the “Plan”) adopted by the Company, which is incorporated in this Agreement by reference, and the terms andconditions of this Agreement. Each RSU shall represent the right to receive one Share upon the vesting of such RSU in accordance with this Agreement.Unless otherwise defined in this Agreement, the terms used in this Agreement shall have the meanings defined in the Plan.2. Vesting Schedule and Distribution. Subject to Section 5, the RSUs shall vest and become non-forfeitable one-fourth on each of the first, second,third and fourth anniversaries of the Grant Date. Subject to the provisions of this Agreement, upon the vesting of any of the RSUs, the Company shalldistribute to the Participant, on or within 30 days after the date of such vesting, one Share for each such RSU.3. Voting Rights. The Participant shall have no voting rights with respect to the RSUs unless and until the Participant becomes the record owner of theShares underlying the RSUs.4. Dividend Equivalents. The Participant shall not be eligible to receive dividend equivalents with respect to the RSUs unless and until theParticipant becomes the record owner of the Shares underlying the RSUs.5. Termination of Service. Following the Participant’s Termination of Service, the RSUs shall vest and settle or be forfeited as set forth in thisSection 5.(a) Death or Disability. In the event of the Participant’s Termination of Service at any time due to the Participant’s death or Disability, any unvestedRSUs shall be forfeited as of the date of such termination without any payment to the Participant.(b) For Cause. In the event of the Participant’s Termination of Service for Cause (as defined below), any unvested RSUs shall be forfeited as of thedate of such termination without any payment to the Participant.“Cause” means the Company’s good faith determination of the Participant’s:(i) willful material breach, or habitual neglect of, the Participant’s duties or obligations in connection with the Participant’s employment or service;(ii) having engaged in willful misconduct, gross negligence or a breach of fiduciary duty, or his or her willful material breach of his or her duties to theCompany or under his or her Employment Agreement, if applicable, or of any Company policies;(iii) having been convicted of, or having entered a plea bargain or settlement admitting guilt for, (x) a felony or (y) any other criminal offenseinvolving moral turpitude, fraud or, in the course of the performance of the Participant’s service to the Company, material dishonesty;(iv) unlawful use or possession of illegal drugs on the Company’s premises or while performing the Participant’s duties and responsibilities to theCompany; or(v) the commission of an act of fraud, embezzlement or material misappropriation, in each case, against the Company or any Affiliate;provided that, in the case of clauses (i) and (ii) above, the Company shall provide the Participant with written notice specifying the circumstancesalleged to constitute Cause, and, if possible, the Participant shall have 30 days following receipt of such notice to cure such circumstances.(c) For Any Other Reason. In the event of the Participant’s Termination of Service at any time under circumstances not described in Sections 5(a) or5(b) or Section 11(b) of the Plan, any unvested RSUs shall be forfeited as of the date of such termination without any payment to the Participant.For purposes of Section 11(b) of the Plan, “Good Reason” means “Good Reason” as defined in the Participant’s Employment Agreement, if any, or ifnot so defined, the occurrence of any of the following events, in each case without the Participant’s consent:(i) a reduction in the Participant’s base compensation and cash incentive opportunity, other than any such reduction that applies generally to similarlysituated employees or executives of the Company;(ii) relocation of the geographic location of the Participant’s principal place of employment or service by more than 50 miles from the Participant’sprincipal place of employment or service; or(iii) a material reduction in the Participant’s title, duties, responsibilities or authority;provided that, in each case, (A) the Participant shall provide the Company with written notice specifying the circumstances alleged to constitute GoodReason within 90 days following the first occurrence of such circumstances, (B) if possible, the Company shall have 30 days following receipt of such noticeto cure such circumstances, and (C) if the Company has not cured such circumstances within such 30-day period, the Participant shall terminate his or heremployment or service not later than 60 days after the end of such 30-day period.6. Non-Transferability Until Distribution. The RSUs shall not be assigned, sold, transferred or otherwise be subject to alienation by the Participant.Upon the distribution of Shares underlying RSUs in accordance with Section 2, such Shares shall be fully assignable, saleable and transferable by theParticipant. Any assignment, sale, transfer or other alienation with respect to the Shares issuable upon the vesting of the RSUs shall be in accordance withapplicable securities laws.7. Miscellaneous Provisions.(a)Notices. All notices, requests and other communications under this Agreement shall be in writing and shall be delivered in person (bycourier or otherwise), mailed by certified or registered mail, return receipt requested, or sent by facsimile transmission, to the contact details below. Theparties may use e-mail delivery, so long as the message is clearly marked, sent to the e-mail address(es) set forth below, and a delivery receipt and read receiptare made part of the message. E-mail delivery will be deemed to occur when the send receives confirmation that such message has been received and read bythe recipient. if to the Company, to:EPAM Systems, Inc.41 University DriveNewtown, Pennsylvania 18940Attention: General CounselFacsimile: 267-759-8989E-mail: Ginger_Mosier@epam.com if to the Participant, to the address, facsimile number or e-mail address that the Participant most recently provided to the Company, or to such otheraddress, facsimile number or e-mail address as such party may hereafter specify for the purpose by notice to the other parties hereto.(b)Effect of Agreement. The Participant acknowledges receipt of a copy of the Plan and represents that he or she is familiar with the termsand provisions thereof (and has had an opportunity to consult counsel regarding the terms of the RSUs), and hereby accepts the RSUs and agrees to be boundby its contractual terms as set forth herein and in the Plan. The Participant acknowledges and agrees that the grant of the RSUs constitutes additionalconsideration to the Participant for the Participant’s continued and future compliance with any restrictive covenants in favor of the Company by which theParticipant is otherwise bound. The Participant hereby agrees to accept as binding, conclusive and final all decisions and interpretations of the Committeeregarding any questions relating to the RSUs. In the event of a conflict between the terms and provisions of the Plan and the terms and provisions of thisAgreement, the Plan terms and provisions shall prevail. The Agreement, including the Plan, constitutes the entire agreement between the Participant and theCompany on the subject matter hereof and supersedes all proposals, written or oral, and all other communications between the parties relating to such subjectmatter.(c)Amendment; Waiver. No amendment or modification of any provision of this Agreement shall be effective unless signed in writing byor on behalf of the Company and the Participant, except that the Company may amend or modify this Agreement without the Participant’s consent inaccordance with the provisions of the Plan or as otherwise set forth in this Agreement. No waiver of any breach or condition of this Agreement shall bedeemed to be a waiver of any other or subsequent breach or condition whether of like or different nature. Any amendment or modification of or to anyprovision of thisAgreement, or any waiver of any provision of this Agreement, shall be effective only in the specific instance and for the specific purpose for which made orgiven.(d)Successors and Assigns; No Third Party Beneficiaries. This Agreement shall inure to the benefit of and be binding upon the Companyand the Participant and their respective heirs, successors, legal representatives and permitted assigns. Nothing in this Agreement, expressed or implied, isintended to confer on any Person other than the Company and the Participant, and their respective heirs, successors, legal representatives and permittedassigns, any rights, remedies, obligations or liabilities under or by reason of this Agreement.(e)Severability. If any provision of this Agreement shall be declared by any court or arbitrator of competent jurisdiction to be invalid,illegal or incapable of being enforced in whole or in part, the remaining conditions and provisions or portions thereof shall nevertheless remain in full forceand effect and enforceable to the extent they are valid, legal and enforceable.(f)Dispute Resolution. If any dispute arising out of or relating to this Agreement or the Plan, or the breach thereof, cannot be settled throughnegotiation, the parties agree first to try in good faith to settle such dispute by mediation. If the parties fail to settle such dispute within 30 days after thecommencement of such mediation, such dispute shall be settled by arbitration conducted in the state of Pennsylvania and judgment on the arbitral awardrendered may be entered in any court having jurisdiction thereof.IN WITNESS WHEREOF, the parties have executed this Agreement as of the day and year first written above. EPAM SYSTEMS, INC. By:Name:Title: ParticipantEXHIBIT 21.1SUBSIDIARIES OF THE REGISTRANTEntityTypeDanika LimitedCyprusEPAM Corporate Information SystemsBelarusEPAM Solutions (Novaya Vest Moscow), Ltd.RussiaEPAM Solutions, LLCUkraineEPAM Systems ApSDenmarkEPAM Systems Canada, Ltd.CanadaEPAM Systems (Cyprus) LimitedCyprusEPAM Systems GmbHGermanyEPAM Systems GmbHSwitzerlandEPAM Systems, Inc.Delaware Corp. USAEPAM Systems KftHungaryEPAM Systems, LLCNew Jersey LLC USAEPAM Systems Ltd.U.K.EPAM Systems Nordic ABSwedenEPAM Systems OOORussiaEPAM Systems OOOUkraineEPAM Systems PLLCBelarusEPAM Systems (Poland) sp. z o.o.PolandEPAM Systems PTE Ltd.SingaporeEPAM Systems SARLLuxembourgEPAM Systems SRLMoldovaTOO EPAM KazakhstanKazakhstanTOO Plus Micro Kazakhstan LPKazakhstanVested Development, Inc.Delaware Corp. USAEPAM Systems (Hong Kong) LimitedHong KongEPAM Systems Netherlands B.V.NetherlandsEPAM Systems (Australia) Pty. Ltd.AustraliaEPAM Systems Bulgaria EOODBulgariaEPAM SistemosLithuaniaEPAM Systems (Czech Republic) s.r.o.Czech RepublicEPAM Systems RomaniaRomaniaEPAM Systems (Asia) LimitedHong KongEPAM Systems (Shenzhen) Co. Ltd.ChinaJointech Software Pte. Ltd.SingaporeEPAM Systems ArmeniaArmeniaEPAM Systems (Ireland) LimitedIrelandGreat Fridays LimitedUKGreat Fridays Inc.Delaware Corp USADesign Advocates LimitedUKDekode LimitedUKEPAM Systems (Malaysia) S.D.N.B.H.D.MalaysiaEPAM Systems (Mexico) SrLMexicoEPAM Systems Austria GmbHAustriaNavigation Arts, Inc.Delaware Corp USANavigation Arts LLCDelaware LLC USAEPAM Systems Spain SLSpainAlliance Consulting Global Holdings, Inc.Delaware Corp USAAlliance Global Services, Inc.Delaware Corp USAAlliance Global Services, LLCDelaware LLC USAAlliance Global Services (IT) India Private LimitedIndiaEXHIBIT 23.1CONSENT OF INDEPENDENT REGISTERED PUBLIC ACCOUNTING FIRMWe consent to the incorporation by reference in Registration Statement Nos. 333-179409 and 333-205421 on Form S-8 and No. 333-188113 on Form S-3 ofour reports dated February 22, 2016 relating to the consolidated financial statements of EPAM Systems, Inc. and subsidiaries, and the effectiveness of EPAMSystems, Inc. and subsidiaries’ internal control over financial reporting, appearing in this Annual Report on Form 10-K of EPAM Systems, Inc. for the yearended December 31, 2015.DELOITTE & TOUCHE LLPPhiladelphia, PAFebruary 22, 2016EXHIBIT 31.1CERTIFICATIONI, Arkadiy Dobkin, certify that:1.I have reviewed this annual report on Form 10-K of EPAM Systems, Inc.;2.Based on my knowledge, this annual report does not contain any untrue statement of a material fact or omit to state a material fact necessary tomake the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the periodcovered by this annual report;3.Based on my knowledge, the financial statements, and other financial information included in this annual report, fairly present in all materialrespects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this annual report;4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as definedin Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-15(f)) for the registrant and have:a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others withinthose entities, particularly during the period in which this annual report is being prepared;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under oursupervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements forexternal purposes in accordance with generally accepted accounting principles;c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about theeffectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; andd.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s mostrecent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likelyto materially affect, the registrant’s internal control over financial reporting; and5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting,to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which arereasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; andb.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internalcontrol over financial reporting. Date: February 22, 2016 /s/ Arkadiy DobkinArkadiy DobkinChief Executive Officer and President (principalexecutive officer) EXHIBIT 31.2CERTIFICATIONI, Anthony J. Conte, certify that:1.I have reviewed this annual report on Form 10-K of EPAM Systems, Inc.;2.Based on my knowledge, this annual report does not contain any untrue statement of a material fact or omit to state a material fact necessary tomake the statements made, in light of the circumstances under which such statements were made, not misleading with respect to the periodcovered by this annual report;3.Based on my knowledge, the financial statements, and other financial information included in this annual report, fairly present in all materialrespects the financial condition, results of operations and cash flows of the registrant as of, and for, the periods presented in this annual report;4.The registrant’s other certifying officer(s) and I are responsible for establishing and maintaining disclosure controls and procedures (as definedin Exchange Act Rules 13a-15(e) and 15d-15(e)) and internal control over financial reporting (as defined in Exchange Act Rules 13a-15(f) and15d-15(f)) for the registrant and have:a.Designed such disclosure controls and procedures, or caused such disclosure controls and procedures to be designed under our supervision,to ensure that material information relating to the registrant, including its consolidated subsidiaries, is made known to us by others withinthose entities, particularly during the period in which this annual report is being prepared;b.Designed such internal control over financial reporting, or caused such internal control over financial reporting to be designed under oursupervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements forexternal purposes in accordance with generally accepted accounting principles;c.Evaluated the effectiveness of the registrant’s disclosure controls and procedures and presented in this report our conclusions about theeffectiveness of the disclosure controls and procedures, as of the end of the period covered by this report based on such evaluation; andd.Disclosed in this report any change in the registrant’s internal control over financial reporting that occurred during the registrant’s mostrecent fiscal quarter (the registrant’s fourth fiscal quarter in the case of an annual report) that has materially affected, or is reasonably likelyto materially affect, the registrant’s internal control over financial reporting; and5.The registrant’s other certifying officer(s) and I have disclosed, based on our most recent evaluation of internal control over financial reporting,to the registrant’s auditors and the audit committee of the registrant’s board of directors (or persons performing the equivalent functions):a.All significant deficiencies and material weaknesses in the design or operation of internal control over financial reporting which arereasonably likely to adversely affect the registrant’s ability to record, process, summarize and report financial information; andb.Any fraud, whether or not material, that involves management or other employees who have a significant role in the registrant’s internalcontrol over financial reporting. Date: February 22, 2016/s/ Anthony J. Conte Anthony J. Conte Senior Vice President, Chief FinancialOfficer and Treasurer(principal financial officer and principalaccounting officer) EXHIBIT 32.1CERTIFICATION PURSUANT TO18 U.S.C. SECTION 1350,AS ADOPTED PURSUANT TOSECTION 906 OF THE SARBANES-OXLEY ACT OF 2002In connection with the Annual Report on Form 10-K of EPAM Systems, Inc. for the year ended December 31, 2015 as filed with the Securities andExchange Commission on the date hereof (the “Report”), the undersigned, in the capacities and on the date indicated below, hereby certifies, pursuant to 18U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of EPAM Systems,Inc.Date: February 22, 2016/s/ Arkadiy Dobkin Arkadiy Dobkin Chairman, Chief Executive Officerand President(principal executive officer) EXHIBIT 32.2CERTIFICATION PURSUANT TO18 U.S.C. SECTION 1350,AS ADOPTED PURSUANT TOSECTION 906 OF THE SARBANES-OXLEY ACT OF 2002In connection with the Annual Report on Form 10-K of EPAM Systems, Inc. for the year ended December 31, 2015 as filed with the Securities andExchange Commission on the date hereof (the “Report”), the undersigned, in the capacities and on the date indicated below, hereby certifies, pursuant to 18U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, that:1.The Report fully complies with the requirements of Section 13(a) or 15(d) of the Securities Exchange Act of 1934; and2.The information contained in the Report fairly presents, in all material respects, the financial condition and results of operations of EPAM Systems,Inc.Date: February 22, 2016/s/ Anthony J. Conte Anthony J. Conte Senior Vice President, ChiefFinancial Officer and Treasurer(principal financial officer andprincipal accounting officer)

Continue reading text version or see original annual report in PDF format above