RAUSHAN KUMAR

I’m a BCA student (expected June 2027) who builds secure, performance-minded Web3 systems—especially on Solana. My coursework includes Data Structures, Algorithms, DBMS, Operating Systems, and Distributed Systems, and I carry that systems thinking into every project I ship.

In my Blockchain & Crypto Intern role (Dec 2025 – Jan 2026), I deployed ERC-20 smart contracts on Polygon Amoy Testnet using Solidity and OpenZeppelin. I also built a real-time Crypto Portfolio Tracker with Next.js 14 and CoinGecko API integration, translating on-chain data into a responsive user experience.

My open-source work sharpened my engineering instincts for correctness and maintainability: I’ve improved Rust tooling and Metaplex ecosystem components by replacing macro panics with proper errors, validating account indexing, and adding sparse indexing support. I’ve also worked on performance and reliability improvements across the Solana/Rust stack—parallelization with rayon/DashMap, reducing redundant allocations, improving retry logic, and adding Redis blockhash caching to cut repetitive RPC calls.

Right now, I’m most excited by end-to-end on-chain product building. Cosmic Conquest runs a fully on-chain RTS game with PvP combat and alliance systems via Program Derived Addresses, Sol-Estate targets RWA fractionalization using multi-sig PDAs, USDC escrow, and Metaplex NFT minting, and SolanaHub provides trustless escrow with milestone payments and on-chain dispute resolution backed by an indexing pipeline into MongoDB.