Java Developer

Job Summary:

We are seeking an experienced Senior Java Developer with a strong background in building scalable, cloud-native microservices. The ideal candidate will be proficient in modern Java (21 or 23), Spring Boot 3.x, and microservices architecture, with hands-on experience deploying and managing applications in OpenShift. You will collaborate closely with cross-functional teams to design, develop, and deliver high-quality, secure, and performant backend services.

Key Responsibilities:

• Design, develop, and maintain Java-based microservices using Spring Boot 3.x, Spring Data JPA, and Spring OpenAPI specifications.
• Implement secure, resilient, and high-performance services with mTLS, Kafka-based event-driven communication, and Hazelcast caching.
• Develop CI/CD pipelines using GitHub Actions, ensuring code quality and reliability through SonarQube, JUnit, and Mockito tests.
• Collaborate with DevOps and Platform teams to deploy and monitor services on OpenShift with integration to Grafana and Prometheus for observability and alerting.
• Integrate and maintain MS SQL databases and ensure optimal query performance and schema design.
• Develop and maintain API documentation and testing frameworks using Swagger, Spring OpenAPI, and Postman.
• Participate in code reviews, technical discussions, and architecture decisions to ensure adherence to best practices and performance standards.
• Troubleshoot production issues and implement continuous improvements for stability and scalability.

Technical Skills:

• Languages & Frameworks: Java 21 or 23, Spring Boot 3.x, Spring Data JPA, Spring OpenAPI
• Build & CI/CD Tools: Gradle, GitHub Actions, SonarQube
• Cloud & Deployment: OpenShift, Docker, Kubernetes (plus)
• Database: MS SQL (experience in performance tuning & query optimization)
• Messaging: Apache Kafka
• Caching: Hazelcast
• Security: mTLS, OAuth2 (plus)
• Testing: JUnit, Mockito, Postman (API validation)
• Monitoring & Observability: Grafana, Prometheus (alerting setup)
• API Tools: Swagger, Spring OpenAPI Definition
• Version Control: GitHub