Senior/Lead Smart Contract Engineer

Smart Gate Technologies and Consulting; Deutschland; Remote; EUR 90.000 - 140.000; Vollzeit

Zusammenfassung

Smart Gate Technologies and Consulting is seeking an expert smart contract engineer to join our blockchain security and development team. You will own production contracts for a perpetuals DEX, optimize Solidity code, and coordinate with auditors and security reviews.

The role requires 3+ years in Solidity, hands-on experience with perpetual futures mechanics, oracles, and modern development workflows (Hardhat/Foundry).

Qualifikationen

• 3+ years building production smart contracts in Solidity.
• Direct experience building contracts for a perpetuals DEX.
• Deep understanding of perpetual futures mechanics: funding, margin, liquidation, and PnL.
• Production Oracle integration experience with Chainlink, Pyth, or similar.
• Strong DeFi protocol design and composability knowledge.
• Experience with Hardhat, Foundry, or similar frameworks.
• Track record of contracts handling TVL $10M+ in production.

Kenntnisse

Solidity

Perpetuals DEX experience

TVL production

DeFi design patterns

Gas optimization

Security best practices

Tools

Hardhat

Foundry

Chainlink

Pyth

CI/CD

Jobbeschreibung

Required Skills & Experience

Must-Have Experience:

• 3+ years building production smart contracts in Solidity
• Direct experience building smart contracts for a perpetuals DEX (this is non-negotiable)
• Deep understanding of perpetual futures mechanics: funding rates, margin systems, liquidation engines, and PnL calculations
• Production experience with oracle integration (Chainlink, Pyth, or custom oracles)
• Strong grasp of DeFi protocol design patterns and composability
• Experience with Hardhat, Foundry, or similar development frameworks
• Track record of contracts handling significant TVL ($10M+) in production

Technical Expertise:

• Advanced Solidity optimization techniques and gas efficiency patterns
• Smart contract security best practices and common vulnerability patterns
• Experience coordinating external security audits
• Understanding of Layer 2 scaling solutions (Arbitrum, Optimism, etc.)
• Proficiency with automated testing and continuous integration for smart contracts