I’m building a decentralized application on the Ethereum network and need an experienced Solidity developer to write, test, and deploy the core smart contract that will power the dApp. The contract must follow best practices for security and gas-efficiency and be ready for mainnet once we complete testing. You’ll start by defining the contract architecture with me, then move on to clean, well-commented Solidity code. I prefer a modern workflow—Hardhat or Truffle for compilation and testing, plus Ethers.js or Web3.js for interaction scripts—but I’m open to alternatives if you have a strong preference. Unit tests that reach full branch coverage are essential, along with a brief technical write-up explaining the contract logic, deployment steps, and any upgrade or governance considerations. Deliverable • Audited, production-ready Solidity smart contract • Automated test suite and deployment scripts • Concise documentation (Markdown is fine) If this aligns with your skill set and you have prior Ethereum mainnet experience, let’s discuss timelines and milestones so we can move quickly from development to launch.