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rajSunny5714/README.md

🚀 Sunny Raj

Full-Stack Java Developer | Aspiring IAM Engineer

Building Secure, Scalable & Intelligent Applications 🔐

🙋‍♂️ About Me

Java Fullstack Engineer with 1.5+ years of hands-on experience in building scalable web applications using Java, Spring Boot, React.js, and REST APIs.

Strong foundation in backend development, authentication & authorization (JWT, OAuth 2.0, SAML 2.0), and database management using MySQL and JDBC.

Experienced in developing AI-powered applications using LLMs, RAG, LangChain, and OpenAI APIs. Passionate about building secure, scalable, and efficient systems with growing expertise in cybersecurity and Identity & Access Management (IAM).

💼 Work Experience

🏢 Tata Consultancy Services (TCS)

Programmer – Fullstack Engineer
📍 Delhi, India | 🗓️ Jan 2025 – Present

  • Resolved 20+ real-time production incidents per month for enterprise applications
  • Investigated and troubleshot REST API issues using Postman
  • Supported live production systems and ensured SLA-based issue resolution
  • Performed SQL/MySQL validations for production troubleshooting
  • Collaborated with cross-functional teams in Agile/Scrum environments
  • Maintained incident reports and technical documentation

🛠️ Tech Stack

Java Spring Boot Spring Security Spring AI REST API Hibernate JDBC React JavaScript Tailwind CSS CSS3 MySQL PostgreSQL AWS Docker JWT OAuth2 SAML IAM LLM LangChain RAG OpenAI API

🎓 Education

🎓 Master of Computer Applications (MCA) | 2025 – 2027

Indian Institute of Technology Patna
(Regular Hybrid Programme conducted in collaboration with IITP & IIITR)

🎓 Bachelor of Computer Applications (BCA) | 2021 – 2024

B. R. Ambedkar Bihar University
📊 Score: 75.8%

🧠 Coding Profiles

🔥 LeetCode: 280+ Problems Solved
🔥 DSA Practice: 500+ Problems across multiple platforms
🔥 Core CS: DSA, OOPs, DBMS, OS, Networking

🌐 Connect With Me

⭐ Always Learning | 🚀 Always Building | 🔐 Always Securing

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  1. FullStack_ECommerce-Project FullStack_ECommerce-Project Public

    I have made this repo that contains or redirect the code that I wrote and made the fullstack ecom project.

    JavaScript

  2. Url-Shortener-FullStack-Project Url-Shortener-FullStack-Project Public

    A full-stack URL Shortener platform using Spring Boot, Spring Security, and React.js. Supports JWT authentication, role-based access control, secure URL redirection, and a responsive user interface.

  3. DSA DSA Public

    I solve problems regularly to improve problem-solving skills, algorithmic thinking, and coding efficiency, covering arrays, linked lists, stacks, queues, trees, graphs, recursion, and more.

    Java

  4. Coding-Practice Coding-Practice Public

    This repository contains my Data Structures and Algorithms (DSA) practice solutions in multiple languages

    Java