Java API Developer

Birlasoft Limited; Bengaluru; On-site; INR 1,200,000 - 2,000,000; Full time

Job summary

Birlasoft Limited is seeking a Java developer to design and implement secure, scalable RESTful APIs using Spring Boot. You will work with product managers, architects, and DevOps to deliver backend services powering web and mobile apps.

The role requires strong Java fundamentals, Spring ecosystem experience, and hands-on API design/implementation with GitHub Copilot. Knowledge of OpenAPI/Swagger, testing tools, and cloud deployment is a plus.

Qualifications

• Strong Java 8+ fundamentals with Spring Boot expertise.
• Experience building and securing RESTful APIs.
• Knowledge of SQL/NoSQL databases and ORMs.
• Familiarity with CI/CD, Docker, and Kubernetes workflows.
• API documentation and testing tools experience.

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 with OAuth2/OIDC, JWT, RBAC, and input validation.
• Write unit, integration, and contract tests; ensure code quality.
• Enhance performance with caching, pooling, and async I/O; ensure observability.
• Contribute to CI/CD pipelines and cloud deployments (Docker, Kubernetes).
• Collaborate in Agile teams; participate in grooming, estimation, and reviews.
• Own services end-to-end from design to production support.

Skills

Java 8+

Spring Boot

RESTful APIs

API design

GitHub Copilot

OpenAPI/Swagger

Postman

Rest Assured

Maven/Gradle

Git

CI/CD

Docker

Kubernetes

SQL/NoSQL

ORMs (JPA/Hibernate)

Education

Bachelor’s in Computer Science/Engineering

Tools

OpenAPI/Swagger

Postman

Rest Assured

Kafka/RabbitMQ

Terraform/Helm

Job description

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 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.