Senior Java Spring Boot Developer

Responsibilities

• Develop and evolve microservices in Java using Spring Boot
• Design and enhance APIs and BFFs in Node.js
• Build high-performance, scalable REST APIs
• Contribute to the definition and evolution of backend architecture
• Work with synchronous and asynchronous integrations
• Ensure technical quality, security, and coding best practices
• Participate in technical refinements and architectural decisions
• Operate in a distributed environment with multiple modules and integrations

Requirements

• Strong experience with Java 11+
• Deep mastery of Spring Boot
• Experience with Spring Data / JPA / Hibernate
• Experience building REST APIs
• Knowledge of security (Spring Security, OAuth2, JWT)
• Solid experience with Node.js
• Experience with frameworks such as Express or NestJS
• Building BFFs
• Experience with REST APIs and/or GraphQL
• Good practices for structuring Node projects
• Experience with microservices architecture
• Knowledge of architectural patterns (Clean Architecture, Hexagonal, DDD is a plus)
• Experience with messaging systems (Kafka, RabbitMQ, or similar)
• Synchronous and asynchronous integrations
• Experience with relational databases (PostgreSQL, Oracle, etc.)
• API versioning and governance
• Unit and integration testing (JUnit, Mockito; Jest is a plus for Node)
• Integration with SonarQube
• Git version control
• Semantic versioning
• Code review and definition of coding standards
• Structured technical documentation
• Experience with CI/CD pipelines
• Docker knowledge is a plus
• Experience in retail / e-commerce projects
• Experience with omnichannel architecture
• Experience with high transaction volumes
• Observability (structured logs, metrics, tracing)