A Computer Science and Engineering student at the Indian Institute of Information Technology, Jabalpur (IIIT-J), and a Backend Developer at FUSION. I specialize in building scalable, high-performance web applications and love tackling complex algorithmic challenges.

• Backend Development: Engineered and optimized 15+ RESTful APIs within a microservices architecture (Node.js/Express).
• Performance Optimization: Improved system performance by 30% and reduced PostgreSQL database execution time by 40% across 100,000+ records.
• Security & Architecture: Integrated a secure authentication system using JWT and role-based access control (RBAC). Experienced in SDLC, Agile Methodology, Microservices, and HLD (High-Level Design).

MERN Stack, JWT, React Context API [Live Link 🔗](https://doctor-appointment-frontend-beta-rouge.vercel.app/)

• Built a full-stack platform with 30+ secure RESTful API endpoints and role-based access control for 3 user roles.
• Reduced client-side load by 50% by migrating slot-generation logic to the Node.js backend.

PostgreSQL, React, Node.js, Clerk, Google Gemini API, Cloudinary [Live Link 🔗](https://quick-ai-two-woad.vercel.app/)

• Designed a secure, multi-tenant SaaS architecture featuring 3 subscription tiers.
• Consolidated 4 distinct AI services, including the Google Gemini API, into a unified API gateway.

• Competitive Programming: Solved 700+ problems across LeetCode, GeeksforGeeks, and Interview Bit.
• LeetCode Profile: [KING_004](https://leetcode.com/u/KING_004/)
• LeetCode Rank: Achieved a peak LeetCode contest rating of 1841, ranking in the top 6.45% globally.
• Coding Contest: Secured 4th rank in CodeRumble, a coding competition at IIIT Jabalpur.

• LinkedIn: https://www.linkedin.com/in/sunil-roat-a311b4251/
• Email: sunil.r.codes@gmail.com