Back End Developer

Job Details:

Position : Java Developer

Experience : 6+ Years

Location : Bangalore(5.5 days WFO)

About the role Were looking for a Backend Engineer with strong hands-on experience building reactive, high-throughput services using Java, Spring Boot, and Spring WebFlux. Youll design and implement APIs, event-driven integrations, and resilient microservices with a focus on performance, scalability, and observability.

Responsibilities

• Design, develop, and maintain reactive microservices using Spring Boot, Spring WebFlux, and Project Reactor
• Build RESTful and streaming APIs; integrate with internal/external services
• Implement non-blocking data access (R2DBC) and messaging (Kafka)
• Write robust tests (JUnit 5, Testcontainers, WireMock) and ensure code quality (Sonar, static analysis)
• Optimize performance: backpressure, connection pooling, caching, and reactive patterns
• Own deployments and operations: Docker, Kubernetes, CI/CD (GitHub Actions/Jenkins), and observability (Micrometer/ELK stack)
• Collaborate with product and frontend teams; participate in code reviews and architecture discussions
• Troubleshoot production issues; improve reliability with circuit breakers, retries, and timeouts

Required qualifications

• 6+ years of professional backend development with Java (Java 11+; ideally 17+)
• Strong Spring Boot experience; deep knowledge of Spring WebFlux and Project Reactor
• Experience with non-blocking data access (R2DBC) and/or reactive NoSQL (MongoDB reactive driver)
• Solid understanding of reactive programming (Mono/Flux, backpressure, schedulers)
• Experience with messaging systems (Kafka/RabbitMQ) and event-driven design
• Proficiency with REST API design, JSON, and OpenAPI/Swagger
• Hands-on with Docker and Kubernetes; CI/CD pipelines
• Familiarity with distributed systems concepts: resilience, idempotency, eventual consistency
• Good grasp of testing: unit, integration, contract; TDD/BDD is a plus
• Strong debugging and performance profiling skills; production monitoring experience

Nice to have

• AWS/GCP/Azure (EKS/ECS, S3, RDS, MSK, CloudWatch/Stackdriver)
• Redis (caching, pub/sub), gRPC, GraphQL
• Security: OAuth2/OIDC, Spring Security, JWT
• Domain-Driven Design, Hexagonal Architecture
• Blue/green or canary deployments; feature flags
• Experience with feature toggles, rollbacks, and incident response