Senior Java Engineer

We are seeking a Senior Java Engineer to build and evolve a Backend for Frontend service layer that powers high-traffic mobile experiences for clients worldwide. You will collaborate with engineers, product partners, designers, and QA to deliver fast, reliable APIs and maintain beautiful code.

Responsibilities

• Design and deliver the Backend for Frontend API layer for mobile clients
• Build server-side services in Java using Spring Boot and modern patterns
• Implement and maintain REST APIs with attention to usability and consistency
• Optimize performance through profiling, analysis, and targeted improvements
• Write unit tests and enforce quality gates through continuous integration
• Refactor and simplify codebases by improving or removing legacy code safely
• Fix defects quickly and prevent regressions through root-cause analysis
• Collaborate with engineers, product partners, designers, and QA to ship features
• Integrate with existing backend services and handle compatibility constraints
• Propose solutions for ambiguous problems and communicate technical tradeoffs

Requirements

• 3+ years of Java backend development experience
• Strong Spring Boot experience building server-side applications
• Strong REST API design and integration experience
• Strong algorithms and data structures knowledge
• Strong unit testing skills and experience with test automation
• Build tool experience with CI pipelines and automated quality checks
• Performance optimization skills for asynchronous and high-throughput services
• Problem-solving skills for open-ended technical challenges
• Team collaboration skills in cross-functional environments
• Self-starter mindset with ownership and initiative
• Bachelor’s degree in Computer Science or equivalent practical experience
• Upper-Intermediate English skills (B2) for clear written and spoken communication

Nice to have

• Docker experience for local development and deployments
• Gradle experience for builds and dependency management
• GraphQL experience for API schema design and query optimization
• Kotlin experience in server-side development
• RAML experience 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

Remote in Argentina