Extensive hands-on experience building on Ethereum (smart contracts, dApps, infrastructure, or developer tools). Strong, well-informed opinions about how the ecosystem should evolve. Experience across multiple layers: smart contract development (Solidity/Vyper), modern client libraries (viem, wagmi, ethers.js), development frameworks (Foundry, Hardhat), frontend integrations (RainbowKit, ConnectKit). Understand developer pain points. Ability to seamlessly move between strategic discussions and deep code analysis. Experience managing resource allocation tradeoffs (bonus). Experience leading technical initiatives across teams (bonus). Experience identifying and acting on emerging technology trends (bonus).