Senior Java Application Developer

Birlasoft Limited; Bengaluru; On-site; INR 1,800,000 - 2,600,000; Full time

Job summary

Birlasoft Limited is seeking a Senior Java Application Developer to design, build, and secure RESTful APIs using Java 8+ and Spring Boot. You will collaborate with product managers, architects, and DevOps to power scalable backend services for web and mobile apps, ensuring performance, reliability, and strong security practices.

The role emphasizes API design, database modeling (SQL/NoSQL), CI/CD, Docker/Kubernetes, and cloud deployments.

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 (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 modelling, 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.

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 I/O, pagination).
• Observability: structured logging (SLF4J/Logback), metrics/tracing (Micrometer, OpenTelemetry), health checks (Actuator).
• CI/CD and cloud deployment (Docker, basic Kubernetes concepts, pipelines; Azure exposure a must).
• Collaborate in Agile teams: 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).

Skills

Java

Spring Boot

RESTful APIs

OAuth2/OIDC

JWT

OpenAPI/Swagger

Git

Maven/Gradle

Microservices

CI/CD

Tools

Docker

Kubernetes

Postman

Rest Assured

Kafka

PostgreSQL/MySQL

Terraform

Helm

OpenTelemetry

Job description

Java - Sr Application Developer Area(s) of responsibility

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.

GHCP Experience Level Senior Level