Designed and implemented Spring Boot microservices supporting financial transaction processing and business workflows. Architected service-layer components (Controller–Service–Repository) for modularity. Developed RESTful APIs with standardized response models, input validation, and centralized exception handling. Integrated PostgreSQL via Spring Data JPA and Hibernate with optimized entity relationships and transactional management. Improved API performance by optimizing JPA queries and reducing redundant calls. Implemented pagination, filtering, and sorting for large datasets. Tuned SQL queries and indexes. Led production debugging and root cause analysis using logs and metrics. Participated in refactoring legacy components into Spring Boot services. Conducted peer code reviews and collaborated with QA and DevOps during releases.

Java Developer at Wipro Limited

May 1, 2022 - May 1, 2023

Developed enterprise backend modules using Spring Boot within a layered architecture. Designed RESTful services consumed by web applications and downstream enterprise systems. Implemented complex business logic using Java Streams and structured exception handling. Managed JPA entity mappings and optimized ORM performance for data-intensive operations. Designed and optimized PostgreSQL queries to improve system performance and scalability. Refactored legacy code into modular, maintainable Spring Boot services. Applied secure coding standards and integrated centralized logging. Supported CI/CD validation and deployment verification activities. Collaborated with DevOps to troubleshoot environment and configuration issues. Participated in Agile ceremonies including sprint planning and retrospectives. Provided production support and resolved backend issues within SLA timelines.

Java Developer at Best Tech Solutions Pvt Ltd

March 1, 2021 - April 1, 2022

Developed backend components using Spring MVC and Spring Boot for enterprise applications. Built REST APIs with CRUD operations and business workflows. Integrated MySQL and Oracle databases using JDBC and Hibernate ORM. Designed and optimized SQL queries and stored procedures for transactional and reporting modules. Assisted in migration of legacy monolithic applications to Spring Boot architecture. Implemented logging for runtime diagnostics and improved traceability. Resolved performance bottlenecks and production issues; supported Jenkins-based CI/CD pipelines. Developed unit tests using JUnit and Mockito; assisted QA during integration testing. Supported deployment on Apache Tomcat and delivered enhancements within Agile sprints.