Leon Stevens

Blockchain/Web3 (5+ years): Developed and deployed numerous smart contracts using Solidity (Ethereum, Polygon, BSC), Rust (Solana) and ink! (Polkadot). Built DeFi protocols, NFT marketplaces, DEXs, DAOs, token launch platforms and Web3-integrated dApps. Experience with security audits, gas optimization and handling mainnet deployments (reduced gas costs by 30-40% on multiple projects).

Web Development (8+ years): Full-stack expertise in React/Next.js (frontend), Node.js/Express (backend), TypeScript, Web3.js/Ethers.js, Wagmi and integration with wallets like MetaMask/WalletConnect. Built responsive, user-friendly interfaces for blockchain apps, including real-time features with WebSockets and IPFS for decentralized storage.