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RK

Roshan Kumar

Java Full Stack Developer

Delhi NCR, India

@roshan_kumar

LinkedIn GitHub

0 followers

🎓 Master of Computer Applications at SRM Institute of Science and Technology · Graduating 2026

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About

Java full stack developer with hands-on experience building secure web applications using Spring Boot, REST APIs, MySQL, Spring Security, JWT, Docker, and React.js. Has worked on AI-integrated features and follows Agile practices with a strong foundation in OOP and Spring Data JPA.

Experience

  • Software Developer Intern
    CODTECH IT Solutions Pvt. Ltd.
    Jan 2026 – May 2026

    Developed REST APIs using Spring Boot and optimized database queries, reducing average response time by 10%. Implemented JWT-based authentication and role-based access control, securing access for 100+ users across multi-user workflows. Developed modular Java components to improve code maintainability and reusability. Participated in Agile sprint planning and code reviews, contributing to timely delivery of 3 major features. Reduced bug reports through improved testing practices and early-stage defect identification.

Education

  • Master of Computer Applications
    SRM Institute of Science and Technology
    Computer Applications · 2024 – 2026
  • Bachelor of Computer Applications
    Institute of Applied Medicines & Research
    Computer Applications · 2021 – 2024

Skills

3 to 6 months 3 to 6 months A few months of practice with it.
JWT Java API Integration Understanding
<3 months <3 months Just getting started - under three months. This is also what shows when a level has not been set.
CSS HTML RBAC React JUnit Mockito JavaScript Spring Security Spring Data Jpa Google Gemini Api

Tools / apps / platforms

3 to 6 months 3 to 6 months A few months of practice with it.
MySQL
<3 months <3 months Just getting started - under three months. This is also what shows when a level has not been set.
Git Docker GitHub Ollama Render Postman Swagger SonarQube Apache Maven GitHub Copilot JetBrains IntelliJ IDEA

Projects

  • Sales CRM System ↗
    Spring Boot, JWT, BCrypt, JUnit, Mockito, Swagger, Postman

    Layered Spring Boot CRM with JWT authentication and BCrypt password encryption, Deal/Task/Follow-up management, Sales Pipeline tracking, and Dashboard Analytics APIs. Includes Bean Validation, global exception handling, tests, and API validation tools.

  • ArtifactAI ↗
    Google Gemini API, Ollama, GitHub OAuth, Docker, Render

    AI-powered GitHub portfolio assistant with secure GitHub OAuth login and an automated zip-to-repository upload pipeline. Integrates Gemini and Ollama to generate resume bullet points and LinkedIn captions, with RESTful endpoints, SLF4J logging, Docker containerization, and Render deployment.

Courses & certifications

  • Databases and SQL Fundamentals · IBM Skills Build
  • AWS Cloud Practitioner Essentials · AWS Skill Builder
  • Full Stack Java Developer · CETPA Infotech

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