Vansh Ranawat

I’m a final-year Computer Science Engineering student who builds full-stack web applications using the MERN stack. I’m comfortable working end-to-end—from REST API design and MongoDB schema design to React component development and secure authentication.

In my “Lost and Found Web Application,” I architected a platform for reporting and tracking lost/found items, designed 12+ RESTful API endpoints (Node.js/Express.js, MVC architecture), and secured 8+ private endpoints with JWT-based custom middleware. I also optimized MongoDB by adding indexes on 4 frequently queried fields, cutting average API response time by roughly 30%, and built 15+ reusable React components to improve maintainability.

For my “Tamper-Proof Certificate Verification System,” I designed a blockchain-based solution that replaces slow manual verification with on-chain, tamper-evident records. I wrote and deployed 3 Solidity smart contracts, used SHA-256 hash-based document fingerprinting to reduce verification time to under 5 seconds, and implemented Web3.js + MetaMask wallet login along with certificate issuance/validation REST APIs. I enjoy shipping reliable features with thorough testing (25+ Postman test cases; 200+ sample records) and CI/CD automation.