Solidity / Smart Contract Engineer

About this role

Smart contracts are unforgiving: a misplaced check or mishandled call value can cost millions in seconds. As a Solidity / Smart Contract Engineer for AI training, you will help AI generate Solidity code that respects the EVM's constraints and the brutal economics of on‑chain bugs — drawing on lessons from real exploits, not textbook examples.

Key Responsibilities

• Generate and evaluate Solidity instruction‑response pairs covering ERC standards, DeFi primitives, and access control.
• Review AI‑generated code for reentrancy, integer overflow, and other classic exploit classes.
• Provide feedback on gas optimization, storage layout, and EVM‑level reasoning.
• Validate AI handling of upgradeable proxy patterns (UUPS, transparent, beacon).
• Evaluate testing approaches with Foundry, Hardhat, and invariant/fuzz testing.
• Identify subtle issues in oracle usage, slippage protection, and MEV exposure.

Ideal Qualifications

• 4 years writing production Solidity smart contracts.
• Deep familiarity with ERC-20, ERC-721, ERC-1155, and major DeFi protocols.
• Strong grasp of EVM gas mechanics and storage layout.
• Experience with security tools (Slither, Mythril, Echidna) and audit reports.
• Comfort with Foundry, Hardhat, and on‑chain debugging.
• Familiarity with L2 ecosystems (Arbitrum, Optimism, Base, zkSync) is a plus.

Project Timeline

• Start Date: Immediate
• Duration: Ongoing
• Commitment: Flexible, 10-25 hours/week

Contract & Payment Terms

• Independent contractor agreement
• Remote work — anywhere in eligible locations
• Weekly payment via Stripe or bank transfer
• Flexible hours