US Ethereum DeFi Contract Dev

Job ID: 39821016

Budget: $50 – $0 USD

I’m building a new DeFi protocol on Ethereum and need a Solidity developer who is physically based in the United States so we can align on compliance questions, real-time collaboration, and occasional in-person working sessions. The core of the project is a suite of smart contracts that will handle deposits, yield generation, and governance on mainnet.

You’ll take ownership of writing, testing, and preparing these contracts for a formal audit. Hardhat (or Foundry), OpenZeppelin libraries, and ethers.js should feel second nature to you, and I’ll expect thorough NatSpec commenting, gas-efficient code, and a clean upgrade path.

Deliverables I need from you:
• Solidity source for all contracts, following OpenZeppelin standards
• A complete test suite with >95 % coverage
• Hardhat deployment scripts and configuration for Goerli and mainnet
• Technical documentation and a short hand-off call once everything is deployed

If you’ve shipped production-grade DeFi applications before—and can prove it with repos or Etherscan links—let’s talk.