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

- Integral career opportunities

- Volunteer and community involvement opportunities

- EPAM Employee Groups

- Award-winning culture recognized by Glassdoor, Newsweek and LinkedIn

📌 Senior Java Server-side Engineer (Argentina)
🏢 EPAM Systems
📍 Argentina