Solidity Developer

Skills

About the Role

You'll take ownership of core smart contract development for a decentralized interest rate swap protocol, building infrastructure that enables traders and liquidity providers to exchange fixed and floating rate exposure on-chain. You'll shape protocol architecture, optimize gas usage, and drive security practices for contracts handling real capital and complex financial logic in an async DeFi environment.

Requirements

• 3+ years of Solidity development with production contracts deployed to mainnet
• Strong understanding of EVM internals, gas optimization patterns, and contract security
• Experience with DeFi protocol design, including lending, AMMs, derivatives, or similar
• Familiarity with audit processes and common vulnerability patterns
• Proficiency with Foundry or Hardhat, including fuzzing and formal verification tools
• Ability to reason about protocol economics and mechanism design tradeoffs
• Track record of writing clean, well-documented, testable code
• Comfort working autonomously in a remote, async environment
• Clear communication skills and high accountability
• Track record of going above and beyond

Responsibilities

• Design and implement core protocol smart contracts for interest rate swap mechanics
• Architect systems for scalability while minimizing gas costs and maintaining composability
• Lead security efforts including threat modeling, internal reviews, and coordination with external auditors
• Build upgrade patterns and admin controls balancing flexibility with decentralization
• Develop integration points for oracles, liquidation systems, and external protocols
• Write comprehensive test suites covering edge cases, invariants, and adversarial scenarios
• Optimize contract efficiency for high-frequency interactions and large position management
• Document contract architecture, trust assumptions, and integration specifications

Benefits

• Comprehensive health plans
• Flexible time off
• Token grant