0xask3

Solely designed, developed, and maintained all production smart contracts (ERC-20, ERC-721, ERC-1155, ERC-4626, staking, vesting), including tests and deployment pipelines. Expert in Solidity with deep experience in Hardhat, Truffle, and Foundry, leveraging advanced testing (fuzzing, forking, gas optimization) to ensure security and performance. Experienced with Chainlink Oracles and VRF for secure off-chain data integration and verifiable randomness in smart contract systems. Built and automated CI/CD pipelines for smart contract projects, streamlining compilation, linting, testing, and deployment across Ethereum, Polygon, BSC, and many more. Utilized auditing tools such as Slither, MythX, and Echidna to identify vulnerabilities, perform fuzz testing, and enhance the overall security of smart contracts before deployment. Collaborated with auditors, prepared threat models, and implemented fixes to strengthen security posture. Contributed to backend and DevOps workflows, including Docker and Rust for cross-chain explorations. Designed upgradeable contract architectures using OpenZeppelin Transparent/UUPS proxies, ensuring maintainability and backward compatibility. Smart contracts under management secured $100M+ total value locked (TVL) across deployed products.

Assisted in developing and testing ERC-20 and staking contracts, gaining hands-on experience with smart contract design patterns and gas optimizations. Supported senior engineers in deployment scripts and contract verifications, while documenting workflows for internal knowledge sharing.