Blockchain MLS Platform Development

I need a full-stack blockchain developer who can recreate the core experience of while moving every critical data point on-chain for tamper-proof transparency. We will build on Ethereum, so you should be fluent in Solidity, hardhat/truffle, Web3.js or Ethers.js, and comfortable wiring a modern React or Next.js front-end to smart contracts.

Core workflow
Today’s MLS sites rely on centralized databases; in our version each property record, offer, and transaction milestone will be stored or referenced on chain. Users will connect through cryptographic wallet authentication (MetaMask, WalletConnect or similar). Once connected they can list a property, search inventory with familiar filters, make or accept offers, and see rating histories of other participants—all without an email/password system.

Deliverables
• Smart contracts governing listing creation, updates, escrow-style payment release, and immutable rating logic
• A responsive web app that surfaces property search & listing, smart-contract transactions, and user profiles in a clean UI
• Wallet-based auth flow, signature-based actions, and network error handling
• Basic test suite and short technical runbook so I can deploy to mainnet or an EVM-compatible sidechain in the future

Acceptance criteria
The site must:
1. Deploy and verify contracts on Ethereum testnet.
2. Allow a wallet holder to publish, edit, and remove a listing only via signed transactions.
3. Complete a mock sale end-to-end, automatically releasing funds per contract rules.
4. Persist and display user ratings, preventing self-rating or duplicate votes.

If you have shipped similar Web3 marketplaces or property-tech tools, please share links or repos so I can gauge code quality and UI approach.