Blockchain Engineer - Solidity/Ethereum

We're seeking an experienced Blockchain Engineer to help build and scale a major financial institution-backed stable coin project. You'll be working on critical smart contract development, protocol design, and system architecture that powers our DApp.

Responsibilities:

• Design and implement robust smart contracts in Solidity for stablecoin protocol including minting/burning mechanisms, collateral vaults, and automated market operations.
• Build and integrate with price oracle systems to ensure accurate real-time valuation and maintain peg stability.
• Conduct comprehensive testing, participate in internal and external audits, and implement best practices to protect user funds.
• Optimize gas efficiency across all contract interactions while maintaining code readability and security.
• Develop and maintain upgradeable contract architectures using proxy patterns and governance mechanisms.
• Integrate with various DeFi protocols, bridges, and cross-chain infrastructure to expand our stablecoin's utility and reach.

Profile

Technical Skills

• Solidity
• Ethereum/EVM
• Hardhat/Foundry
• OpenZeppelin contracts
• Gas optimization
• Upgradeable contract patterns (UUPS, Transparent Proxy)
• Ethers.js/Web3.js
• CI/CD for smart contracts.

Required Qualifications

• Expert-level proficiency in Solidity with at least 2 years of production smart contract development experience.
• Deep understanding of the Ethereum Virtual Machine (EVM), gas optimization techniques, and contract design patterns.
• Proven track record of deploying and maintaining smart contracts on Ethereum mainnet or major L2 networks.
• Strong knowledge of DeFi protocols including lending markets, AMMs, and stablecoin mechanisms (both algorithmic and collateralized).
• Experience with development frameworks such as Hardhat, Foundry, or Truffle. Solid understanding of smart contract security vulnerabilities (reentrancy, front-running, oracle manipulation, etc.) and mitigation strategies.
• Familiarity with testing methodologies including unit tests, integration tests, and fork testing. Experience with Web3 libraries (ethers.js, web3.js) and blockchain indexing tools.

Preferred Qualifications

• Prior experience working on stablecoin projects or other financial primitives in DeFi.
• Knowledge of Hedera Hashgraph and its Solidity-compatible smart contract service.
• Experience with Layer 2 solutions such as Arbitrum, Optimism, Polygon, or Base.
• Familiarity with cross-chain bridges and multi-chain deployment strategies.
• Understanding of tokenomics and mechanism design for stablecoins.
• Experience participating in or conducting smart contract audits.
• Knowledge of formal verification tools like Certora or Slither.
• Contributions to open-source DeFi projects or Ethereum improvement proposals. Understanding of regulatory frameworks affecting stablecoins (MiCA, US stablecoin legislation, etc.).