DeFi Smart Contract Development

I’m building a finance-focused DApp and need a Solidity expert to craft the core smart contracts. The immediate requirement is a secure, audit-ready transferFrom-style function that lets users move assets between wallets without exposing them to re-entrancy or allowance-drift risks.

The code must be:
• Written in Solidity following the latest compiler version and OpenZeppelin best practices.
• Fully covered by automated tests (Hardhat or Truffle) that demonstrate correct behaviour under normal, edge-case, and malicious scenarios.
• Optimised for gas and easy to upgrade, as I may expand into lending, yield farming, or staking later.

Deliverables
1. Production-ready smart contract source code.
2. Deployment/​migration scripts for testnet and mainnet.
3. Complete test suite with clear instructions to run it.
4. Concise technical documentation outlining functions, events, and upgrade path.

I will review the repo, run the tests, and verify successful deployment to a public testnet before releasing the milestone. If this aligns with your expertise, I’m ready to get started right away.