We are looking for a Middle Java Software Engineer passionate about building solid, maintainable, and scalable systems to join our Admin & Customer Service Applications Team. About the Team: The Admin & Customer Service Applications Team owns and maintains internal tools used by our Operations and Customer Support teams. You’ll join a pragmatic, hands-on team modernizing the internal tech stack and improving service delivery at scale. Key Responsibilities: Develop and maintain Java backend services for internal support tools Refactor legacy components for better performance, readability, and maintainability Design and implement scalable APIs and integrations with other IDT systems Work closely with customer care and product teams to deliver new features and improvements Contribute to the long-term architectural evolution of critical internal apps Document code, systems, and workflows for broader team knowledge Requirements: 3+ years of experience in Java backend development Solid knowledge of Java and Spring ecosystem (Boot, Data, Security) Experience with relational and NoSQL databases and writing efficient SQL Strong understanding of RESTful API design and integration Familiarity with GraphQL Familiarity with version control, build, and CI/CD tools Ability to navigate, debug, and refactor legacy codebases Excellent communication and teamwork skills Nice to Have: Experience with XML-based service interfaces Understanding of call center systems or financial transaction processing Exposure to containerisation tools (Docker, Kubernetes) Interest in system re-architecture or gradual migration projects What we offer: Remote work as b2b contractor or hybrid full-time in Belarus and Moldova Really good hardware An exciting and challenging job with talented people around Great learning and growth opportunities Compensation for professional training, seminars, and conferences First-class English lessons More perks for the Minsk and Chisinau office employees