Built and shipped 30+ RESTful APIs using Java + Spring Boot, integrated with MySQL/JPA; optimized data-access patterns and query tuning to improve response time by 40%.

Reduced service latency 38% through thread-pool tuning, non-blocking I/O, and Kafka-based asynchronous messaging for high-volume event processing.

Eliminated 35% of integration defects by aligning API contracts with frontend teams and publishing Swagger/OpenAPI documentation.

Secured all endpoints with Spring Security + JWT; achieved 90% automated test coverage (JUnit 5, Mockito); managed CI/CD pipelines in Jenkins with rollback-ready deployments validated via Postman and Swagger UI.

Developed REST APIs and Spring Boot microservices supporting 10+ enterprise client modules; integrated Angular-based frontend workflows with MySQL persistence.

Boosted scheduled-job throughput 25% using Java multithreading with the Executor Framework; improved maintainability with Java 8 Streams and reusable layered architecture.

Reduced Angular form-validation errors 20% through improved input handling and UX logic.

Partnered with DevOps on production releases — cut release-related bugs 30%; delivered 50+ enhancements and bug fixes through UAT-driven feedback cycles.

Built backend modules for an e-commerce platform processing 1,000+ daily transactions — RESTful APIs for product listing, order tracking, and payment workflows using Spring Boot.

Designed MySQL schemas, optimized queries, and enforced transactional integrity across inventory and user-management microservices.

Achieved 90% unit and integration test coverage (JUnit, Mockito); maintained a microservices architecture aligned with domain boundaries.

Delivered features in Agile sprints using JIRA and Git; collaborated cross-functionally to ship production-ready code on schedule.