Solidity Developer

* Designing and developing Solidity smart contracts for permissionless scheduled USDC payments on Arbitrum One, supporting one-time and recurring execution. * Engineering a Rust executor using Alloy and Tokio to discover scheduled payments from on-chain events, validate execution eligibility, simulate transactions, and submit due payments. * Building a lightweight TypeScript frontend using viem for wallet connectivity, payment creation, and status tracking.

* Developed an open-source Token Index Fund DAO using Solidity, Hardhat, and OpenZeppelin. Implemented on-chain governance for index management and automated Uniswap V3 liquidity operations. * Created Mocha and Chai test suites achieving 99% coverage to validate protocol behavior across edge cases and exploit scenarios. * Conducted Foundry fuzzing and invariant testing, Slither static analysis, and Mythril symbolic execution to identify vulnerabilities and inform mitigation strategies. * Built a React 18 frontend with ethers.js and MetaMask integration to display wallet and protocol data and submit on-chain transactions. * Deployed and maintained a Node.js backend behind Nginx and Cloudflare, using AWS Secrets Manager and IAM for secure signing-key management, with zero user-facing downtime since March 2025.

* Operated a 12-GPU cryptocurrency mining operation, 10 TB of decentralized storage, and an Ethereum archive node averaging $200 USD profit per month. * Wrote a Python monitoring script to collect mining API data and send automated SMS status alerts, reducing rig downtime by approximately 15%. * Designed a Raspberry Pi GPIO-based temperature monitoring system for cooling optimization and to reduce energy costs.