Oussama A.

With 5+ years of immersive blockchain development, I engineer cutting-edge Web3 solutions that merge security, scalability, and user-centric design. As a Smart Contract Engineer & Security Expert, I’ve architected mission-critical systems—including cross-chain trading bots, NFT ecosystems, and DeFi platforms—driving adoption for startups and enterprises alike. 🔧 Core Expertise: ✅ Smart Contract Development & Audits: Solidity, EVM, Foundry, Hardhat, Slither. Secured $10M+ in assets across 20+ EVM networks. ✅ Advanced Trading Solutions: Built high-frequency cross-DEX trading bots with copy trading, snipe functions, and real-time PNL tracking—optimized via Redis and Solana GRPC nodes. ✅ Full-Stack Web3 Integration: Nest.js, Ethers.js, GRPC, MongoDB, Solana web3.js. ✅ NFT & DeFi Ecosystems: Launched NFT marketplaces, ticketing platforms (NFTicks.xyz), and play-to-earn economies with custom ERC-721/1155 standards. ✅ Security-First Execution: Mitigated vulnerabilities, conducted audits, and deployed battle-tested protocols. 🚀 Key Achievements: Led Phinix.fun: A Microsoft-sponsored trading bot with cross-chain DEX aggregation, sniping, and copy-trading features, achieving sub-second latency via Redis caching. Scaled a multi-chain gaming wallet to 9,000+ active users by integrating ERC-20 tokens and social incentives (Lens Protocol fork). Authored Solidity.tips, educating 10,000+ developers on secure smart contract practices. 🌐 Why Partner With Me? I blend technical precision with strategic vision to turn ideas into production-ready Web3 applications. Whether you’re building a trading bot, a DeFi protocol, or an NFT platform, I ensure: Rocket-Fueled Execution: From concept to deployment, with Agile precision. Security Without Compromise: Proactive threat modeling and audits. User Growth: Proven strategies to attract and retain communities. ✨ Let’s Create the Unthinkable Need a snipe-ready DEX bot? A copy-trading system? Or a secure, scalable NFT marketplace? I turn complexity into code—fast, secure, and future-proof.