Senior Software Engineer - MetaMask Card

Consensys is the leading blockchain and web3 software company, pioneering technological developments within the web3 ecosystem. The Senior Software Engineer will focus on the development and integration of the MetaMask Debit Card, building core infrastructure and user-facing features for millions of users.

Responsibilities:

• Designing and implementing the front-end components and user experience for MetaMask Debit Card interactions across MetaMask clients
• Developing robust and scalable backend services and APIs to manage card lifecycle, facilitate transaction processing, and integrate with financial partners
• Ensuring seamless and secure integration with Card Issuers, payment networks, and compliance systems
• Optimizing the performance and security of all Card features, handling real-time data feeds and high-volume transaction throughput

Requirements:

• 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
• Experience with payment processing, card issuing, or fintech products
• Experience with DeFi protocols and/or digital asset management
• Knowledge of financial products in the digital space
• Interest in blockchain technologies and Web3
• Basic understanding of cryptography principles
• Experience working in distributed teams
• Previous experience working in Web3
• Familiarity with the Web3 wallet ecosystem
• Experience with performance optimization