We are seeking a Lead Java Server-side Engineer to drive a Backend-for-Frontend service layer powering high-traffic mobile products serving clients worldwide. Collaborate closely with engineers, product partners, designers, and QA to deliver reliable APIs, enhance legacy integrations, and sustain top performance.
Responsibilities
- Design and build the Backend-for-Frontend API layer consumed by mobile applications
- Develop REST endpoints and define service contracts aligned to mobile user flows
- Enhance backend performance through profiling, analysis, and targeted improvements
- Refactor legacy code to boost reliability and readability
- Write clean, testable code and sustain unit test coverage at a strong level
- Integrate with existing backend services and manage bespoke and legacy dependencies
- Investigate defects,



pinpoint root causes, and ship safe patches quickly
- Collaborate with engineers, product partners, designers, and QA to deliver features end to end
- Support CI workflows and strengthen build tooling to keep releases smooth
- Advocate for great user experience by influencing API and data design decisions
- Cut technical debt by eliminating redundant code and keeping the codebase healthy

Requirements
- Bachelor's degree in Computer Science or related discipline, or equivalent experience
- 5+ years of experience building server-side applications in Java
- At least 1 year of relevant leadership experience

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