We are seeking a Senior Server-side Engineer to build and evolve a Backend-for-Frontend service layer that powers high-traffic mobile experiences for clients worldwide. You will collaborate with engineers, product partners, designers, and QA to deliver reliable APIs and high-quality code. Apply to help shape the next generation of mobile platforms.
Responsibilities
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Design and build the Backend-for-Frontend API layer used by mobile applications
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Implement REST endpoints and service contracts that support mobile user flows
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Optimize service performance through profiling, analysis, and targeted improvements
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Refactor legacy code to improve maintainability, readability, and reliability
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Write clean, testable code and maintain strong unit test coverage
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Integrate with existing backend services and handle bespoke and legacy dependencies
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Fix defects by diagnosing root causes and shipping safe, timely patches
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Collaborate with engineers, product partners, designers, and QA to deliver features
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Contribute to CI workflows and build tooling to keep delivery smooth
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Share ideas and advocate for great user experience through API and data design
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Remove unnecessary code and reduce technical debt to keep the codebase healthy
Requirements
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3+ years of Java experience building server-side applications
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Senior-level collaboration skills working with cross-functional teams
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Strong solution design skills for open-ended problems
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Strong Spring Boot expertise for building and maintaining services
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Strong REST API development skills, including integration with legacy services
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Strong algorithms and data structures knowledge for efficient implementations
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Strong unit testing skills and test-driven mindset
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Build tools knowledge and experience with CI workflows
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Performance analysis and optimization skills for backend services
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Strong troubleshooting skills for debugging and fixing production issues
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Self-starter mindset with ownership and proactive communication
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Bachelor’s degree in Computer Science or related field, or equivalent experience
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Upper-Intermediate English proficiency (B2) for effective communication
Nice to have
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Docker skills for containerizing and running services locally and in pipelines
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Gradle experience for builds and dependency management
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GraphQL experience for designing and consuming GQL APIs
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Kotlin experience for server-side development on the JVM
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RAML experience for API modeling and documentation
We offer
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International projects with top brands
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Work with global teams of highly skilled, diverse peers
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Healthcare benefits
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Employee financial programs
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Paid time off and sick leave
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Upskilling, reskilling and certification courses
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Unlimited access to the LinkedIn Learning library and 22,000+ courses
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Global career opportunities
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Volunteer and community involvement opportunities
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EPAM Employee Groups
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Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn
