Design, build, and maintain RESTful APIs using Java and Spring Boot (Web, Data, Security, Actuator).
Model and integrate with databases (SQL/NoSQL), write efficient queries, and manage schema migrations.
Implement API security: OAuth2/OIDC, JWT, role-based access, rate limiting, input validation.
Write clean, testable code with unit, integration, and contract tests.
Optimize performance and reliability (caching, connection pooling, async/non-blocking I/O, pagination).
Observability: structured logging (SLF4J/Logback), metrics/tracing (Micrometer, OpenTelemetry), and health checks (Actuator).
CI/CD and cloud deployment (Docker, basic Kubernetes concepts, pipelines; Azure exposure a must).
Collaborate in Agile teams: participate in grooming, estimation, code reviews, and documentation (OpenAPI/Swagger).
Own services end to end: from design and development to deployment and production support (on-call rotation optional).

Strong knowledge of Java 8+ (preferably 11/17 or later) and Spring Boot.
Experience building RESTful APIs and integrating with external/internal services.
Solid understanding of data structures, concurrency, and error handling.
Hands-on with RDBMS (e.g., PostgreSQL/MySQL) and ORMs (JPA/Hibernate).
Proficient with Git, branching strategies, and Maven/Gradle.
Familiarity with API documentation (OpenAPI/Swagger) and Postman/Rest Assured.
API architecture & design (resource modeling, versioning, idempotency, resilience patterns).
Security best practices (OAuth2/OIDC, JWT, mTLS, secrets management).
Scalability & resilience patterns (Circuit Breaker/Retry/Backoff with Resilience4j; async/reactive programming).
Experience with microservices, message brokers (Kafka/RabbitMQ), and event-driven patterns.
Cloud-native deployments (Docker/K8s) and IaC (Terraform/Helm is a plus).
Mentoring developers and leading design/code reviews.

Java Backend Developer

Key skills