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[Remote] Senior Software Engineer - MetaMask Card

Remote, USA Full-time Posted 2026-06-16

Note: The job is a remote job and is open to candidates in USA. Consensys is the leading blockchain and web3 software company, pioneering technological developments within the web3 ecosystem. The Senior Software Engineer will be responsible for building core infrastructure and user-facing features for the MetaMask Debit Card, ensuring secure and intuitive user interactions.

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

Skills

  • 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
  • Good verbal and written communication in English
  • Teamwork, flexibility, and organization
  • Eagerness to learn and grow your technical skills
  • Ability to balance technical quality with business needs and user experience

Benefits

  • Bonus
  • Equity
  • Other benefits
  • Background checks including but not limited to employment, education and criminal record checks

Company Overview

  • ConsenSys builds Ethereum blockchain infrastructure and applications ranging from developer tools to enterprise solutions. It was founded in 2014, and is headquartered in Brooklyn, New York, USA, with a workforce of 501-1000 employees. Its website is https://consensys.io.
  • Company H1B Sponsorship

  • Consensys has a track record of offering H1B sponsorships, with 1 in 2022, 1 in 2021, 4 in 2020. Please note that this does not guarantee sponsorship for this specific role.
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