Senior Java Server-side Engineer

About the Position

We are looking for a Senior Java Server-side Engineer to develop and enhance a Backend-for-Frontend service layer that drives high-traffic mobile experiences for clients around the globe. You will work alongside engineers, product partners, designers, and QA to ship dependable APIs and top-tier code. Join us to help shape the next wave of mobile platforms!

Responsibilities

• Architect and develop the Backend-for-Frontend API layer consumed by mobile applications
• Build REST endpoints and service contracts that enable mobile user journeys
• Enhance service performance via profiling, analysis, and focused improvements
• Rework legacy code to boost maintainability, readability, and reliability
• Produce clean, testable code and sustain strong unit test coverage
• Connect with existing backend services and manage bespoke and legacy dependencies
• Resolve defects by identifying root causes and delivering safe, timely patches
• Partner with engineers, product partners, designers, and QA to ship features
• Support CI workflows and build tooling to keep delivery running smoothly
• Exchange ideas and champion great user experience through API and data design
• Eliminate unnecessary code and cut technical debt to keep the codebase healthy

Requirements

• Qualifications in Computer Science or related field (Bachelor’s), or equivalent experience
• 3+ years of experience building server-side applications in Java
• Competency in solution design for open-ended problems
• Expertise in Spring Boot for building and maintaining services
• Proficiency in REST API development, including integration with legacy services
• Knowledge of algorithms and data structures for efficient implementations
• Skills in unit testing with a test-driven mindset
• Familiarity with build tools and experience with CI workflows
• Capability to analyze and optimize performance for backend services
• Proficiency in troubleshooting for debugging and fixing production issues
• Showcase of self-starter mindset with ownership and proactive communication
• Skills in senior-level collaboration with cross-functional teams
• Proficiency in English at an Upper-Intermediate level (B2) or higher

Nice to Have

• Skills in Docker for containerizing and running services locally and in pipelines
• Background in Gradle for builds and dependency management
• Familiarity with GraphQL for designing and consuming GQL APIs
• Proficiency in Kotlin for server-side development on the JVM
• Knowledge of RAML for API modeling and documentation

We Offer

• International projects with top brands
• Work with global teams of highly skilled, diverse peers
• Healthcare benefits
• Employee financial programs
• Paid time off and sick leave
• Upskilling, reskilling, and certification courses
• Unlimited access to the LinkedIn Learning library and 22,000+ courses
• Global career opportunities
• Volunteer and community involvement opportunities
• EPAM Employee Groups
• Award-winning culture recognized by Glassdoor, Newsweek, and LinkedIn

About the Company

Join our team and be part of a dynamic, innovative environment where your contributions will directly impact the success of high-profile mobile platforms. We value diversity, continuous learning, and professional growth, providing a supportive and enriching workplace for all our employees.