Ethereum Credit Card Contract Audit

I have a Solidity smart contract on Ethereum that powers a crypto-backed card with a built-in credit line. Before we move to main-net launch, I need a seasoned auditor to examine every line for potential exploits and logical flaws, then suggest clear, actionable fixes.

You will have full access to the repository and test suite. Feel free to bring your own tooling—Hardhat, Slither, MythX, Foundry, Echidna—whatever helps you surface re-entrancy vectors, overflow / underflow risks, improper access control, or design weaknesses around the credit limit logic.

Deliverables
• A written report (PDF or Markdown) detailing each issue, severity ranking, and recommended remediation
• A summary of gas-saving and readability improvements, where relevant
• Confirmation test cases or PoC scripts for all critical findings
• A short follow-up session to walk me through questions and retest patched code

The contract is already deployed to an Ethereum testnet, so you can start immediately. If you have a proven audit track record and can turn this around quickly, let’s talk.