kundan kumar

I am a Java backend developer with a B.Tech in Computer Science and hands-on experience building enterprise-grade applications. I design, develop, and maintain Java-based backend services using Spring Boot, Hibernate, and related technologies.

At Ursag Information Technology I contributed to multiple projects including an e-commerce platform and HRMS, developing over 20 RESTful APIs and improving response times by 30%. I implemented security with Spring Security, OAuth2/JWT, and reduced unauthorized access attempts by 50% on an admin panel.

I improved application and database performance through refactoring and query optimization, achieving up to 40% reduction in processing time and 25% faster query execution. I also led third-party integrations, cutting manual data entry by 50% and delivered multiple backend modules on time.

I foster team growth by mentoring junior developers, setting up CI/CD with Jenkins and JUnit, and emphasizing secure, maintainable code. I seek roles where I can continue to build robust backend systems and drive measurable performance and security improvements.