Java Backend Developer

Role Overview

Developed and maintained backend applications using Java, Spring Boot, REST APIs, and MySQL for client-facing applications at Persistent Systems. Engineered business workflows, secure JWT role-based access control, microservice integrations, and query optimizations.

Key Accomplishments

• Developed and maintained backend applications using Java, Spring Boot, REST APIs, and MySQL for client-facing applications.
• Designed and implemented RESTful APIs for business workflows, data management, authentication, and application integrations.
• Developed backend modules using Spring Boot, Spring Data JPA, Hibernate, and MySQL.
• Implemented authentication and authorization using Spring Security and JWT with role-based access control.
• Optimized SQL queries and database operations to improve API response time and application performance.
• Implemented request validation, centralized exception handling, and consistent API error responses.
• Worked on microservice-based backend components and service-to-service integrations.
• Used Git, Docker, Jenkins, and CI/CD pipelines for development, testing, and deployment workflows.
• Performed unit and API testing using JUnit, Mockito, Postman, and Swagger.
• Investigated and resolved application defects and production issues through debugging, log analysis, and root-cause analysis.
• Collaborated with client-side developers, QA engineers, and cross-functional teams in Agile/Scrum environments.
• Participated in code reviews and followed clean-code, reusable-component, and maintainability practices.
• Contributed to performance improvements, bug fixes, feature development, and application stability.

System Architecture Visual Map