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Engineered and deployed production-grade Solidity smart contracts including ERC-20/721 tokens, staking vaults, yield aggregators, and upgradeable proxy patterns (UUPS/Transparent), ensuring secure upgradeability and modular architecture. • Integrated DeFi protocols including Aave V3 (lending, borrowing, flash loans) and GMX (perpetual trading), implementing automated strategies and composable yield flows with Rocket Pool (rETH) for reward distribution. • Designed and executed advanced testing frameworks using Foundry (fuzzing, invariant testing) and Echidna, identifying critical vulnerabilities and reducing potential exploit risk prior to deployment. • Conducted smart contract security analysis using Slither, proactively mitigating issues such as reentrancy, oracle manipulation, and flash loan attack vectors. • Developed zero-knowledge (ZK) applications using Noir (Aztec stack), exploring zkEVM compatibility and contributing to L2 deployment strategies focused on scalability and privacy. • Built responsive Web3 frontends using React, viem, wagmi, and RainbowKit, implementing seamless multi-wallet connection flows and real-time on-chain data interactions. • Led end-to-end Web3 development across 15+ dApp projects over 24 months, reducing average deployment time by 30% through optimized CI/CD pipelines, reusable contract templates, and improved development workflows.

• Developed full-stack applications using Next.js, React, NestJS, and PostgreSQL, integrating Web3 functionality such as wallet authentication, onchain data fetching, and transaction handling via Ethers.js and viem. • Built corporate platforms and e-commerce solutions with hybrid Web2/Web3 architecture, integrating Stripe for fiat payments alongside blockchain-based payment flows and smart contract interactions. • Implemented seamless wallet connectivity (MetaMask, WalletConnect) and user onboarding flows, bridging traditional authentication with decentralized identity solutions. • Designed SEO-optimized applications using SSR/SSG (Next.js), while enabling dynamic on-chain data rendering and real-time blockchain state synchronization. • Developed scalable state management solutions (Zustand, Redux Toolkit) to handle both off-chain and on-chain data, ensuring consistent UX across decentralized applications. • Created responsive, cross-device UI components tailored for Web3 interactions (transaction states, gas fees, confirmations), improving usability for non-technical users.