Senior Backend Engineer - Spring Boot, BFF & API Scale

EPAM Systems; Argentina; Presencial; ARS 90.783.000 - 136.174.000; Jornada completa

Ventajas ofrecidas por este puesto de trabajo

Healthcare benefits

Employee financial programs

Paid time off and sick leave

Upskilling, reskilling and certif­  “?

LinkedIn Learning access

Global career opportunities

Volunteer and community involvement

EPAM Employee Groups

Award-winning culture

Descripción de la vacante

EPAM Systems in Argentina is seeking a Senior Server-side Engineer to build and evolve a mobile service layer (Backend for Frontend) powering high-traffic client experiences. You will collaborate with engineers, product partners, designers, and QA to deliver reliable APIs, optimize performance, and maintain code quality.

Design backend-for-frontend APIs with Spring Boot, implement REST endpoints, and mentor peers while integrating with existing services and CI pipelines.

Formación

• 3+ years of Java experience building server-side applications.
• Strong leadership skills to influence technical decisions and mentor peers.
• Proven project delivery experience in large cross-functional teams.
• Solid Spring Boot knowledge for building scalable services.
• Strong REST API design skills for contract-first, maintainable endpoints.
• Strong algorithms and data structures skills for solving complex problems.
• Strong unit testing skills to ensure correctness and prevent regressions.
• Hands-on CI experience with build and test automation.
• Experience with asynchronous programming and concurrency concepts.
• Performance optimization skills including profiling and tuning.
• Strong refactoring skills and ability to work with legacy code safely.
• Excellent communication skills and a proactive, self-starting mindset.
• Bachelor’s degree in Computer Science or related field, or equivalent experience
• Upper-Intermediate English proficiency (B2)

Responsabilidades

• Design backend-for-frontend APIs that support mobile client use cases.
• Build Spring Boot services in Java with clean, maintainable architecture.
• Implement REST endpoints with clear contracts and predictable behavior.
• Optimize performance through profiling, tuning, and efficient data access.
• Write unit tests to protect critical logic and enable safe changes.
• Refactor legacy code to improve readability, safety, and extensibility.
• Fix bugs through root-cause analysis and targeted remediation.
• Integrate with existing backend services and adapt to evolving interfaces.
• Implement asynchronous flows where needed to improve responsiveness.
• Automate builds and checks within continuous integration pipelines.
• Review code to uphold standards and share best practices.
• Collaborate with product, design, and QA to deliver end-to-end features.

Conocimientos

Java

Spring Boot

REST API design

Unit testing

CI / Build automation

Asynchronous programming

Concurrency

Algorithms & data structures

Leadership

Communication

English (B2)

Educación

Bachelor’s degree in Computer Science or related field, or equivalent experience

Herramientas

Docker

Gradle

GraphQL

Kotlin

RAML

Descripción del empleo

EPAM Systems in Argentina is seeking a Senior Server-side Engineer to build and evolve a mobile service layer (Backend for Frontend) powering high-traffic client experiences. You will collaborate with engineers, product partners, designers, and QA to deliver reliable APIs, optimize performance, and maintain code quality.

Design backend-for-frontend APIs with Spring Boot, implement REST endpoints, and mentor peers while integrating with existing services and CI pipelines.