Fullstack Engineer, MetaMask

• We’re looking for an experienced, collaborative engineer who shares our passion for making Web3 accessible and impactful:
• 5+ years of fullstack engineering experience, with a strong emphasis on frontend and SDK development
• Extensive experience in modern JavaScript and TypeScript development, with deep knowledge of frameworks such as Viem and React
• Hands-on experience developing and maintaining SDKs and libraries used by third-party developers
• Experience with Ethereum/EVM-based blockchain technologies, Web3.js, wagmi, ethers.js, or similar libraries
• Strong understanding of web security, blockchain fundamentals, and decentralized application architecture
• Proven experience designing simple solutions to complex problems
• Demonstrable knowledge of modern software development practices including continuous integration, testing, and agile methodologies
• Exceptional communication skills in English, both written and verbal
• Ability to independently navigate a fast-paced, remote environment and proactively engage with teammates and partners

Desirable

• The Delegation Framework is a critical component of this mission
• It enables developers to create flexible, secure, and composable permission structures on Ethereum and other EVM-compatible chains
• By joining MetaMask’s Delegation team, you’ll help bring this framework to new heights, scaling it for millions of users across diverse use cases and platforms
• As a Fullstack Engineer on the Delegation team, you’ll focus primarily on developing, maintaining, and scaling our TypeScript/Viem Delegation Toolkit SDK and building our Gator Permissions in the MetaMask wallet
• Build and enhance the Delegation Toolkit SDK: Design, implement, and maintain a robust, developer-friendly SDK built on TypeScript and Viem that enables seamless integration of delegation permissions across web3 applications
• Develop and innovate with MetaMask Snaps: Collaborate closely with MetaMask extension and Snap teams to build advanced features within the Gator Permissions Snap, ensuring a secure and intuitive user experience
• Ensure cross-platform compatibility: Create solutions that seamlessly integrate across multiple MetaMask platforms, including browser extensions, mobile apps, and portfolio dApps
• Collaborate and contribute to adoption: Engage closely with internal teams, partners, and the broader developer community to promote adoption and integration of the Delegation Framework and Toolkit SDK
• Maintain excellence and usability: Write clear documentation, provide support to developers using the SDK, and create exemplary tutorials and examples that accelerate adoption