EngineeringSenior LevelPosted 3 days ago

Senior Smart Contract & Web3 Security Engineer

Architect, test, and audit next-generation decentralized protocols, ERC-4337 account abstraction systems, and cross-chain dApps across EVM and Solana ecosystems.

Remote (Global)
$120,000 - $160,000 / yr + Token Incentives
Full-time

Key Responsibilities

  • Write highly gas-optimized Solidity and Rust (Solana Anchor) smart contracts.
  • Develop invariant tests, fuzzing suites, and formal verification tests with Foundry.
  • Coordinate with external audit partners and conduct internal security assessments.
  • Interface contracts with frontend dApps using Viem, Wagmi, and Web3Modal.

Requirements & Technical Mastery

  • 3+ years of dedicated Solidity/Web3 engineering experience with verified contracts on mainnet.
  • Proven expertise with Foundry, Slither, Echidna, and smart contract security patterns.
  • Strong grasp of EVM bytecode, assembly (Yul), and state storage optimization.
  • Understanding of Layer-2 rollups (Arbitrum, Base, Optimism) and DeFi mechanics.

Perks & Cultural Benefits

  • Competitive base salary + token allocation grants
  • Remote work stipend + global co-working pass (WeWork/Spaces)
  • Sponsorship to major Web3 events (Devcon, EthCC, Solana Breakpoint)
  • Comprehensive healthcare and wellness reimbursement
Direct Engineering Review

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