Research Engineer
📍 Giza, Egypt
A versatile Web3 professional bridging the gap between on-chain technical depth and strategic business development. Proven track record in founding a full-stack RWA tokenization platform, executing over 50 smart contract security audits, and driving market growth through targeted client outreach and relationship management. Passionate about leveraging decentralized finance and tokenomics to create secure, scalable solutions.
Salary
USD 90,000
Zawyafi
Sept 2025 — Present
Designed and built a full-stack RWA tokenization platform enabling everyday investors to buy inventory-backed stakes in local SMEs and earn returns from live business revenue. Architected 3 Chainlink CRE workflows connecting live POS/ERP systems to on-chain payout contracts, eliminating manual settlement and enabling automated, transparent revenue distribution. Wrote and deployed 7 EVM smart contracts (Solidity + Foundry) covering investment pool management, period based revenue recording (PeriodRecorded events indexed on Dune Analytics via Sepolia), and access-controlled withdrawal flows. Integrated Square POS API for real-time revenue data ingestion into on-chain settlement pipeline; executed full credential security remediation (PAT revocation + git history purge) following an incident. Built Node.js backend on AWS App Runner and Next.js frontend; submitted to Chainlink Convergence Hackathon 2026.
Freelance
Jun 2023 — Present
Completed 50+ security reviews across DeFi and NFT protocols on CodeHawks and Sherlock; produced remediation roadmaps covering reentrancy, access control bypasses, oracle manipulation, and precision edge cases. Built Solidity components with Foundry test suites targeting adversarial scenarios; test coverage used as client education assets and audit checklists across multiple engagements. Implemented advanced DeFi primitives: overcollateralized lending engine with health-factor logic and liquidation flows; DEX aggregation router with slippage protection and MEV-aware execution safety. Designed flash loan architecture (ERC-3156 / SharkVault patterns) with full attack scenario coverage using Foundry fork tests. Published public audit write-ups on Hashnode (CodeHawks First Flight #17) — findings cited by peers in the security community.
ITSEC
Mar 2022 — May 2023
Conducted penetration testing engagements and produced structured reports mapping vulnerabilities to business impact with prioritized remediation steps. Delivered security training workshops to 50+ attendees; developed technical presentation and stakeholder communication skills.
BSc · Information Systems
2021 – 2025