Metrics is seeking a Lead Solidity Engineer for a company that has onboarded over 35 million wallets and supported over 190,000 developers in creating seamless blockchain experiences. Their clients include major Web3 leaders and globally recognized brands, with a focus on making onchain technology accessible and user-friendly.Backed by prominent investors, the company’s mission is to simplify technical complexities, enabling developers to build applications that are easy for anyone to use. Moving beyond wallet solutions, their focus has shifted to chain abstraction, addressing the challenges of fragmented blockchain networks. They’re working toward creating a cross-chain network that fosters true interoperability and seamless user experiences across various blockchain ecosystems.

What You’ll Do

• Design, implement, and deploy smart contracts to enhance functionality within a chain-abstracted smart account architecture using Solidity.
• Develop robust frameworks, processes, and tools to ensure smart contract security and dependability.
• Perform comprehensive testing to guarantee code quality and security.
• Optimize smart contracts for gas efficiency and overall performance.
• Collaborate closely with cross-functional teams, including engineers, designers, product managers, and senior leadership, to transform technical and product vision into actionable strategies.
• Work alongside ecosystem partners to align smart contract modules with industry standards and best practices.

What We’re Looking For

• A strong security-first approach.
• Solid technical knowledge of blockchain architecture and the EVM.
• Proficiency in Solidity and a deep understanding of smart contract security.
• Expertise in account abstraction.
• 4+ years of experience in building and deploying high-quality smart contracts.
• Familiarity with the full smart contract development lifecycle, from design to deployment, including performing security audits.
• Experience working with layer 2 networks and cross-chain interoperability.
• Knowledge of smart contract best practices and current industry trends.
• Advanced skills with the Foundry toolkit and static code analysis.
• Strong background in unit testing, integration testing, and test-driven development for smart contracts.

Preferred Qualifications

• Hands-on experience with smart wallets built on ERC-4337 and ERC-7579 modules.
• Familiarity with front-end technologies like React and libraries like viem and permissionless.js.
• Active participation in EIP discussions, with potential contributions of your own proposals.
• Background in open-source contributions.
• Experience in fast-growing companies and remote team collaboration.
• Proficiency in Rust and the Solana/SVM ecosystem.
• Knowledge of zero-knowledge technology.
• Familiarity with Formal Verification methods.