Mahmoud F.Private profile: Upwork shows its earnings only to signed-in members, so we check it every few weeks, not daily. MRR here is a rough estimate (Upwork's six-month earnings ÷ months active). Last read Nov 5, 2026.

Blockchain Engineer | Smart Contract Specialist | Web3 Full-Stack Developer With 9+ years engineering experience (5+ years in software) and a Master’s in Computer Engineering, I bring deep expertise in blockchain architecture (3+ years xp), smart contracts, and full-stack dApps. What I Deliver: ✅ Smart Contract Design: Hands-on experience with Ethereum EIPs (including 2025’s UX-focused upgrades), ERC standards, Layer 2s and gas optimization. ✅ Full-Stack Web3: Proficient in Solidity, Node.js, React, TypeScript and Python. ✅ Future-Ready Solutions: Motivated to bridge Web2 smoothness with Web3’s decentralization (think ERC-4337, EIP-3074, EIP-7702). Turning complex blockchain challenges into seamless user experiences. Let’s build the next evolution of Web3 together. Tech Toolkit: Solidity | Ethereum | EVM-based blockchains | Python | TypeScript | React | Rust | Elixir | Flutter