Backend Java developer -Software Developer / Senior Software Developer

Qualifications

• 3 to 7 years of Java programming experience, with:
  • Strong understanding of Data Structures
  • Java 8 fundamentals - collections, concurrency, streams
  • Spring Boot 2.7.x+ (Web, Validation, Security via OAuth2/JWT, Actuator)
  • REST API design - resource modeling, pagination, filtering, sorting and versioning
  • JPA/Hibernate - mapping, criteria, transaction management, N+1 avoidance, caching
  • Apache Camel - route DSL, EIPs (content-based routing, splitter/aggregator), error handling, retry with backoff, idempotent consumer, Camel components for HTTP, JMS/Kafka, File/SFTP
  • SQL proficiency on Oracle/PostgreSQL, including query tuning and indexing
  • Testing with JUnit 5, Mockito, Testcontainers or embedded DB, REST Assured
  • Maven-based build and dependency management, including BOMs and CVE handling
  • Observability - JSON logging, metrics, tracing, Actuator endpoints
  • Git workflows, branching and merge strategies
  • OWASP Top 10 knowledge and secure coding practices
  • Caching and session management (Hazelcast or Redis)

Preferred Skills

• Kafka, JMS, and DLQ strategies
• Jenkins pipelines, Docker basics, Kubernetes familiarity
• API Gateways and rate limiting
• Message schemas and contract testing (OpenAPI, AsyncAPI, Pact)
• Feature flags, blue-green or canary deployments

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