Zakir Khan

Smart Contract Engineer

Aspira Pura • Full-time

Mar 2024 - Present • 2 yrs 4 mos

• Developed ERC-3643 compliant RWA tokenization platform with marketplace and escrow functionality, deploying 12 smart contracts on Arbitrum mainnet including IdentityRegistry and KYCRegistry • Built AI-powered credential verification system using Soulbound NFTs (ERC-5192) for educational certificate validation, combining blockchain immutability with AI image analysis on Sepolia testnet • Architected full-stack P2P DeFi lending platform with Solidity smart contracts, escrow system, React Native mobile app, Node.js/Express backend, and MongoDB integration deployed on Sepolia • Developed Monero cryptocurrency wallet application in React Native with background blockchain sync, stealth address generation, encrypted storage, and cross-platform iOS/Android support • Created DeFi yield aggregator with multi-chain support, automated strategy optimization, and liquidity pool management across Ethereum, BSC, and Polygon • Architected supply chain tracking DApp integrating React frontend, Node.js backend, and Ethereum smart contracts with AI-powered delay prediction • Implemented secure smart contract patterns achieving zero critical vulnerabilities across 15+ production deployments with comprehensive unit and integration testing RWA Tokenization Platform Solidity • ERC-3643 • Arbitrum Mainnet • React • Node.js • Hardhat • Enterprise-grade Real World Asset tokenization system with 12 smart contracts on Arbitrum mainnet. Includes IdentityRegistry, KYCRegistry, compliance modules, marketplace with escrow, and comprehensive role-based access control DeFi Analytics & Trading Platform Solidity • Web3.js • React • TypeScript • Hardhat • The Graph • Comprehensive DeFi analytics tracking liquidity pools across 5 blockchains with automated rebalancing. Processed $500K+ trading volume with sub-second execution on Ethereum, BSC, Polygon, Arbitrum, and Optimism Cross-Chain NFT Bridge Solidity • Chainlink CCIP • React • Node.js • IPFS • Secure NFT bri

Full Stack Blockchain Developer

InterWork Office Solutions • Full-time

Jan 2023 - Feb 2024 • 1 yr 1 mo

Designed 15+ production-ready smart contracts with comprehensive testing and gas optimization achieving 30-40% cost reductions Built responsive DApp frontends with React and Web3 integration implementing EIP-2612 permit functionality Developed custom tokenomics models with deflationary mechanisms and reward distribution systems Handled 10,000+ transactions with zero critical vulnerabilities across multi-chain deployments P2P DeFi Lending Platform Solidity • React Native • Node.js • MongoDB • Ethers.js • Hardhat • Sepolia • Full-stack peer-to-peer cryptocurrency lending platform with smart contract-based escrow system. Features collateral management, automated liquidation, on-chain interest calculation, and complete loan lifecycle management through a React Native mobile application with WalletConnect integration Monero Wallet Mobile App React Native • TypeScript • Node.js • Monero-JavaScript • SQLCipher • Privacy-focused cryptocurrency wallet built with React Native featuring background blockchain sync, stealth address generation, encrypted local storage, address book management, and transaction history with notes. Cross-platform support for iOS and Android