mohamad

● Contributed, with a globally distributed team, to the development of impactful projects such as Libre and Zenrock. ● Refactored Solidity smart contracts using best practices from the Solidity and Coinbase style guides to improve readability, security, and maintainability. ● Updated the complete EVM-based frontend integration using Ethers.js to streamline web2–web3 communication, reducing latency and Improved UX for decentralized apps, reducing user drop-off. ● Built cross-functional integrations using Ethers.js Added Solana SPL token integration using @solana/web3.js, enabling USDC payments on Solana as a performant alternative to Ethereum and traditional fiat rails. ● Adapted complex fund management logic to on-chain logic, from business day calendar management rules, to multi-period token tracking, early partial redemption fees. ● Scoped and evaluated client-requested features, exploring implementation paths, risk trade-offs, and integration feasibility. ● One of the main contributors to the redesign and deployment of Libre’s $150M+ regulated bond tokenization protocol, migrating from a private chain to Ethereum Mainnet. ● Participated in two external audits, ensuring robust testing, modular design, and documentation that enabled clean reviews with no critical issues. ● Authored extensive test suites and internal documentation to support long-term scalability, audit readiness, and developer onboarding. ● Deployed CW20 tokens on the Mantra Dukong testnet using CosmWasm.

● RWA Marketplace Design: Played a key role in developing a Real-World Asset Marketplace with DeFi features, collaborating effectively within a 15-member agile team. ● Underwent extensive training targeting smart contract security by solving plenty hacking challenges such as: Ethernaut, Guess the Number and Damn Vulnerable Defi. Polytrade logo Polytrade Polytrade Full-time · 1 yr 7 mosFull-time · 1 yr 7 mos RemoteRemote helped me get this jobLinkedIn helped me get this job Full Stack Blockchain Developer Full Stack Blockchain Developer May 2023 - May 2024 · 1 yr 1 moMay 2023 to May 2024 · 1 yr 1 mo Dubai, United Arab EmiratesDubai, United Arab Emirates ● Led quality and security reviews for smart contract deployments using Solidity on Mastercard’s Multi-Token Network (MTN), ensuring high standards of code integrity. ● Directed the seamless integration of TypeScript-based frontend and backend systems with Mastercard’s MTN, enhancing blockchain ecosystem functionality. ● Standard Development: Co-authored the ERC-6960 (Dual Layer Token Standard), enhancing token ownership features, Contributed to the development of ERC-7410 (ERC-20 Update Allowance By Spender Extension), facilitating improved security and flexibility in token allowance management. ● Full Stack Management: Managed web2 and web3 development to ensure seamless integration across all layers. Led the frontend team and oversaw smart contract code reviews. ● Library Migration and Optimization: Led the upgrade of the ethers.js library from v5 to v6 across frontend and backend systems. ● System Performance & Security: Implemented key optimizations and integrated OpenZeppelin’s Defender, improving system robustness. ● Advanced Smart Contract Course: Completed specialized training in smart contract security, EVM dynamics, and Yul Assembly and Huff. ● CI System Development: Developed a Continuous Integration system, linking GitHub with npm, to streamline the development process.

● API Integration: Successfully integrated APIs with the team, enhancing access to crucial forex data. ● User Interface Development: Developed responsive interfaces using React-Typescript, Redux-Typescript, and Ant Design, focusing on user experience and visual attractiveness. ● Project Management: Implemented Git, GitHub, and Jira within Agile frameworks to ensure timely and efficient project completion. ● Web Interface Design: Transformed Adobe XD designs into functional web interfaces, ensuring both ease of use and visual clarity. ● UX Collaboration: Worked with the UX team to enhance user interfaces, resulting in a 20% decrease in bounce rate and improved user satisfaction.

● Real-World Asset Tokenization: Played a pivotal role in developing tokenization software, collaborating with business teams for smooth blockchain integration. ● Solidity Smart Contracts: Developed a range of smart contracts (including ERC721, ERC20, Whitelist, DAO, Voting) using OpenZeppelin, with a focus on upgradeability and ethers.js integration. ● Ethereum dApps: Created Ethereum dApps using React-Typescript, Node-Typescript, and Hardhat, integrating Metamask for secure transactions. ● IPFS File Management: Enhanced file management efficiency and security by implementing Pinata for IPFS uploads. ● Created React-Typescript application including state management tool such as Redux. ● Transformed Figma design into a practical implementation using HTML, CSS, React, and Ant Design. ● Partnered with the UX team to design and implement user-friendly interfaces.