Freelance Blockchain & Full-Stack DeveloperJan 2024 – Present · 2 yrs 11 mos
Developed and deployed custom smart contracts for DeFi lending platforms, staking protocols, and NFT marketplaces, ensuring secure, gas-efficient, and scalable implementations. Conducted rigorous unit and integration testing using Hardhat and Chai to prevent security vulnerabilities. Built and launched a feature-rich NFT minting platform integrating IPFS for decentralized storage, ensuring metadata immutability and long-term accessibility. Implemented dynamic NFT metadata updates enabling artists to modify NFT attributes post-mint based on predefined logic. Conducted smart contract security audits to identify and mitigate reentrancy attacks, integer overflows, and access control vulnerabilities, resulting in a 40% reduction in potential exploits before deployment. Developed and integrated multi-chain interoperability solutions enabling seamless asset transfers between Ethereum, BNB Chain, and Polygon. Utilized Layer 2 scaling solutions (Optimistic Rollups, zk-Rollups) to optimize trans