Middle Java Backend Engineer

Salary: $0 - $0 per year Location : Employment option: Remote Job type: Full time Job Summary: We are looking for a Middle Java Backend Engineer to join our team and work on developing and supporting backend services. Skills Must Have Hard skills: - expert in: JPA, REST, Spring, Hibernate, PostgreSQL, Backend Development, JAVA, Spring Boot, Databases Nice-to-have Hard skills: - competent in: AWS S3, HTTP, JUnit, Gradle, IAM, Git, Docker Job Description Additional Requirements Experience in backend development with Java and Spring Boot. Experience building and supporting REST APIs. Good knowledge of Spring Web, Spring Data JPA, Hibernate, Spring Validation. Practical experience with Spring Security, OAuth2 Resource Server, JWT, role-based access. Solid experience with PostgreSQL (schema design, query optimization, transactions). Experience managing database migrations with Flyway. Experience integrating external services via HTTP APIs. Experience working with S3 / MinIO or similar storage. Experience with testing: JUnit 5, Spring Boot Test, integration tests. Experience with Gradle, Docker, Git. Responsibilities Develop and maintain backend services using Java and Spring Boot. Build and support REST APIs. Work with PostgreSQL (schema design, query optimization, transactions). Integrate with external services via HTTP APIs. Implement authentication and authorization (JWT, role-based access). Work with file storage (S3 / MinIO). Write tests and support existing functionality. About Company Company Overview You will be part of an international engineering team focused on developing a modern, intelligent surveillance platform for financial institutions. The system processes high-frequency market data to identify irregular behavior and ensure regulatory compliance across jurisdictions. This role offers exposure to complex engineering challenges, financial domain knowledge, and the opportunity to shape a next-generation platform from within a collaborative and technically strong team.