Designed and maintained scalable RESTful APIs using Java and Spring Boot, ensuring seamless front-end and back-end communication. Implemented data access layers with Spring Data JPA and Hibernate, enabling efficient ORM mapping and optimized database interactions. Developed and optimized microservices with Java and Spring Boot, enabling scalability and independent deployment. Created test cases for functional, regression, and integration testing, and wrote unit tests with JUnit and Mockito to ensure high coverage and code quality. Monitored application logs with Splunk for proactive issue identification and managed version control with Git, implementing branching strategies, resolving merge conflicts, and conducting code reviews.