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Solidity Developer

Open 31d

You'll take ownership of core smart contract development for a decentralized interest rate swap protocol, building the foundation 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 that handle real capital and complex financial logic. This is a remote role where you'll build infrastructure for interest rate markets in DeFi, working autonomously in an async environment.

Responsibilities

  • Design and implement core protocol smart contracts for interest rate swap mechanics
  • Architect systems for scalability, minimizing gas costs while maintaining composability
  • Lead security efforts including threat modeling, internal reviews, and coordination with external auditors
  • Build upgrade patterns and admin controls that balance 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

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—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
  • Comfortable working autonomously in a remote, async environment
  • Clear communication skills and high accountability

Benefits

  • Comprehensive health plans
  • Flexible time off
  • Token grant

See also

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