Senior Software Engineer - MetaMask (Networks)

Hi!

We are excited to announce an internal opportunity for growth and development within Consensys. We highly value the talent and dedication of our current employees and encourage you to apply for this role. This is a fantastic chance to further your career, contribute to new projects, and continue making a significant impact within Consensys. We look forward to seeing your applications and supporting your professional journey.

About MetaMask

We’re building for a future where the internet and world economy empowers people through interactions based on consent, privacy, and free association. Where both communities and individuals flourish. To accomplish that, we’re working hard to make web3 accessible for everyone around the world.

MetaMask is both a crypto wallet and a gateway to the decentralized web. Our tools help people create communities, play video games, access financial services, make payments, invest in assets, protect against economic turmoil, and more. Our browser extension and mobile platforms meet the needs of millions of users and developers across the world.

Originally a humble key manager, today MetaMask serves over 30 million monthly active users as a decentralized application development platform, an aggregator of decentralized cryptocurrency exchanges, and a decentralized identity manager.

The Networks team is responsible for making blockchain connectivity inside MetaMask feel invisible, reliable, and trustworthy—no matter which chain a user is interacting with. This includes ownership of EVM and non-EVM network connectivity, network switching, chain discovery, RPC configuration, performance and reliability, safety, L2s, custom networks, and the speed at which MetaMask can safely support new networks.

As a Senior Software Engineer, you will work on the team that owns the execution of MetaMask’s network layer—one of the most critical and complex parts of the wallet. You will shape how MetaMask scales across emerging EVM chains and key non-EVM ecosystems, ensuring network expansion aligns with MetaMask’s broader product and business strategy while maintaining best-in-class reliability and user trust.

What you’ll do

• Build and enhance MetaMask's network support for both EVM and non-EVM chains. 
• Implement user-centric solutions across MetaMask Clients including Extension, Mobile, and Web
• Contribute to backend APIs and middlewares that power MetaMask’s network experiences.
• Help create intuitive, efficient, and secure Web3 interactions that delight users
• Collaborate with product managers, designers, and other engineers to deliver high-quality features
• Participate in code reviews and help maintain high code quality standards

Would be great if you brought this to the role

• 3+ years working with mobile-based technologies
• 3+ years building websites and/or applications
• Experience with React and React Native
• Strong knowledge of modern Javascript (ES6/TypeScript/etc.)
• Familiarity with blockchain fundamentals and Web3 integration
• Working knowledge of cross platform/browser compatibility
• Experience working with APIs and middleware services
• Experience working in an agile development team
• Experience developing applications with clean code practices, testing, and adherence to coding standards
• Understanding of web-based security considerations

Bonus Points

• Experience with in-app marketing and engagement strategies, including push notifications, carousel banners, and in-app modals.
• Experience with DeFi protocols, token swaps, or fiat on/off ramps