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Sudhir Kumar

@sudhirkumar3

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Detail-oriented junior full stack developer building Java Spring Boot and React applications.

India

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What I'm looking for

I’m looking for a full stack role where I can build reliable Java Spring Boot backends and React frontends, learn from code reviews, and grow in an Agile team. I want ownership, measurable impact, and clean engineering standards.

I’m a detail-oriented Junior Full Stack Developer with hands-on internship experience building, testing, and maintaining scalable software applications. I focus on clean, reusable code, practical troubleshooting, and delivering user-friendly solutions in Agile teams.

During my internship at KodNest Technology, I helped develop and test 15+ RESTful API endpoints using Java and Spring Boot. I also collaborated on mobile-responsive frontend features with React.js, HTML, and CSS—reducing page load times by 25%.

On the backend, I improved performance and reliability by optimizing MySQL schemas and SQL queries, reducing database latency by 45%. I additionally conducted 40+ peer code reviews and applied best practices that resulted in zero security vulnerabilities in final code delivery.

I bring this same analytical mindset to my projects, including an NGO Volunteer Collaboration Portal with Spring Boot, Hibernate, React, and performance gains of 30% after query optimization. I’m now looking to grow as a developer by building secure, well-structured systems and strengthening my impact across full stack delivery.

Experience

Work history, roles, and key accomplishments

Full Stack Web Dev Intern

KodNest Technology

Aug 2025 - May 2026 (9 months)

Developed and tested 15+ RESTful API endpoints using Java and Spring Boot to support backend integration tasks. Built mobile-responsive React frontends, optimized MySQL schemas and queries to reduce database latency by 45%, and completed 40+ peer code reviews with zero security vulnerabilities in final delivery.

Java Spring Boot REST APIs React MySQL SQL Query Optimization Code Review Git API Integration

Full Stack Web Intern

KodNest Technology

Aug 2025 - May 2026 (9 months)

Developed and maintained 15+ RESTful APIs in Java, Spring Boot, and Spring Data across a microservices architecture, improving production stability and reducing reported incidents. Cut backend query execution time by ~30% and page-load time by ~18%, while implementing JWT/OAuth2 authentication and resolving 30+ backend defects across 8+ Agile sprints.