Senior Java Server-side Engineer

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