Spring Boot Upgrade & Backend Optimization – Upgraded legacy backend services to newer Spring Boot versions, improving efficiency, maintainability, and security. – Integrated Apache Camel as part of a data integration framework to collect, transform, and transfer data between multiple systems. – Implemented Spring Security with ForgeRock OAuth 2.0 for secure authentication and role-based access control across microservices. – Designed and implemented Docker-based CI/CD pipelines with automated testing, improving deployment reliability and reducing errors. – Collaborated with frontend, QA, and DevOps teams to ensure smooth integration and successful deployments. Database Engineering & API Development – Designed and implemented RESTful APIs supporting high-throughput transactions and system integrations. – Optimized MongoDB queries and indexing to improve performance. – Maintained and enhanced SQL-based services for complex reporting and analytics modules.