Experienced Web3 Engineer Needed

I’m building a new blockchain-powered product and need an engineer who can take it from concept to mainnet. You’ll help me refine the technical approach, choose the right chain (Ethereum, BSC, Polkadot or another you recommend), then design and code the entire web3 layer—smart contracts, tests, and the connection to a React front-end via ethers.js or web3.js. Security, gas efficiency, and clear documentation are priorities.

Deliverables
• Technical stack recommendation and architecture diagram
• Well-commented, audited Solidity (or relevant language) contracts
• Hardhat/Truffle deployment scripts with a comprehensive test suite
• Seamless front-end integration code and examples
• README and quick-start guide for future contributors

Acceptance criteria: contracts compile without warnings, achieve ≥95 % unit-test coverage, deploy successfully to a public testnet, and pass an internal security review following OpenZeppelin best practices.