Senior Java API Developer

Birlasoft Limited; Bengaluru; On-site; INR 1,400,000 - 2,400,000; Full time

Job summary

Birlasoft Limited in Bengaluru is seeking a Senior Java API Developer to design, build, and maintain RESTful services using Spring Boot. You will work with product managers, architects, and DevOps to deliver backend capabilities powering web and mobile apps.

Required are strong Java fundamentals, Spring ecosystem experience, and hands-on API design/implementation. Expect cloud-native deployment with Docker and Kubernetes concepts, plus secure by design APIs.

Qualifications

• Strong Java 8+ fundamentals with Spring Boot expertise.
• Experience building RESTful APIs and integrating services.
• Solid data structures, concurrency, and error handling.
• Proficient with RDBMS/ORMs (PostgreSQL/MySQL, JPA/Hibernate).
• Familiarity with API docs (OpenAPI/Swagger) and testing tools.

Responsibilities

• Design, build, and maintain RESTful APIs using Java and Spring Boot.
• Model and integrate with SQL/NoSQL databases and manage migrations.
• Implement API security (OAuth2/OIDC, JWT, RBAC).
• Write unit, integration, and contract tests; ensure code quality.
• CI/CD and cloud deployment with Docker and basic Kubernetes concepts.
• Collaborate in Agile teams with code reviews and documentation.

Skills

Java

Spring Boot

REST API design

SQL/NoSQL

Git

Maven/Gradle

OpenAPI/Swagger

Postman/Rest Assured

Docker

Kubernetes

Kafka/RabbitMQ

CI/CD

Education

Bachelor's in CS/Engineering

Tools

Docker

Kubernetes

OpenAPI/Swagger

Postman

Rest Assured

Terraform/Helm

Micrometer/OpenTelemetry

Job description

Java API Developer Area(s) of responsibility About the Role We are seeking a Java developer focused on building secure, scalable, and resilient RESTful APIs using Spring Boot . You’ll work closely with product managers, architects, and DevOps to deliver backend services powering web and mobile applications. The ideal candidate brings strong Java fundamentals, Spring ecosystem experience, and hands-on API design/implementation skills.

Key Responsibilities

• 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).

Required Qualifications

• 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.
• Senior / Lead 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.
• Education Bachelor’s in Computer Science/Engineering or equivalent practical experience.
• Experience Level Senior Level