Solidity / Smart Contract Engineer

ixolabs.ai; France; Sur place; EUR 90 000 - 130 000; Temps partiel

Avantages offerts par ce poste

Remote work

Résumé du poste

ixolabs.ai is seeking a Solidity / Smart Contract Engineer for AI training to help generate secure on‑chain code under EVM constraints. Start date is immediate; project is ongoing with 10-25 hours per week, fully remote.

You will review and improve solidity code against common exploits and gas optimization, collaborating with AI tooling and defense strategies. The ideal candidate has several years writing production Solidity, deep ERC standard knowledge, and hands-on experience with security

Description du poste

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