Java API Developer

Birlasoft; Bengaluru; On-site; INR 2,500,000 - 4,000,000; Full time

Job summary

Birlasoft is seeking a Java developer in Bengaluru to design, build, and scale secure RESTful APIs using Spring Boot. You’ll collaborate with product, architecture, and DevOps teams to deliver backend services powering web and mobile apps. Strong Java fundamentals and API design skills are essential.

The role emphasizes OAuth2/JWT security, data modeling with SQL/NoSQL, and hands-on experience with Docker/Kubernetes in cloud deployments. Prior Copilot usage is a plus.

Qualifications

• Strong knowledge of Java 8+ and Spring Boot.
• Experience with API design and implementing RESTful services.
• Hands-on with relational and NoSQL databases.
• Familiar with ORM frameworks like JPA/Hibernate.
• Proficient with Git, Maven/Gradle, and open API documentation.

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 migrations.
• Implement API security: OAuth2/OIDC, JWT, RBAC, rate limiting, and input validation.
• Write clean, testable code with unit, integration, and contract tests.
• Optimize performance and reliability (caching, pooling, async I/O, pagination).
• Observability: structured logging, metrics/tracing, health checks.
• CI/CD and cloud deployment (Docker, Kubernetes concepts, pipelines; Azure exposure a must).
• Collaborate in Agile teams: grooming, estimation, code reviews, and docs (OpenAPI/Swagger).
• Own services end to end: from design and development to deployment and production support.

Skills

Java 8+

Spring Boot

API design

GitHub Copilot

REST APIs

SQL/NoSQL

JPA/Hibernate

Maven/Gradle

OpenAPI/Swagger

Postman/Rest Assured

Education

Bachelor’s in CS/Engineering

Tools

Postman

Rest Assured

Docker

Kubernetes

Git

Job description

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 and with using GitHub Copilot experience.

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.
• knowledge and experience of using GitHub Copilot
• 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.