JavaScript Engineer

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.

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 1,000,000 monthly active users as a decentralized application development platforman aggregator of decentralized cryptocurrency exchanges, and a decentralized identity manager. Meanwhile, we are building towards a future where MetaMask serves as an extensible, pluggable platform upon which an immensely wide array of decentralized networks, services and user experiences can be built.

We’re Hiring

Our team is growing and we are looking for new teammates to help build the present and future of MetaMask. We are hiring engineers at various levels of experience (mid, senior, lead) to champion full-stack feature development, secure and robust code and delightful user experiences across our JavaScript codebase.

We are looking for people based in time zones between UTC-8:00 and UTC-0:00 (North and South America, Western Europe and Western Africa).

Joining our team at this time will be an opportunity to contribute to and help lead a variety of engineering initiatives critical to the future of MetaMask and the decentralized web, including:

Who We Are Looking For

We are looking for engineers who will:

  • Be growth-minded, collaborative, and can enjoy some amount of ambiguity, autonomy, and freedom to experiment
  • Own the development of features for our browser extension 
  • Improve MetaMask through effective review of pull requests, triaging and analysis of GitHub issues, auditing and refactoring the codebase, and testing
  • Proactively contribute to team discussions about UX design, technical issues, sprint and roadmap planning, and improving team processes
  • Be proficient and thoughtful with asynchronous and synchronous communication, giving and receiving feedback, and working independently and with a team
  • Support their teammates’ performance and growth
  • Be successful working within a fully remote environment
  • Bring respect, patience, and empathy to every interaction and relationship with coworkers and the community
  • Bring hustle, enthusiasm, heart and a love of shipping code and fixing bugs to their work

Technical Requirements

We are hiring at varying levels of experience. Most successful candidates will have at least a couple years of production experience. Meanwhile, there are key opportunities for individuals looking for very senior roles and responsibilities.

Successful candidates will be proficient, or be able to quickly become proficient, in the following areas:

  • JavaScript and TypeScript
  • React and Redux
  • Architecting and implementing APIs (for servers or services) in a Node.js context
  • Some or all of: Node.js streams, Service Workers, generators, Observables, WebSockets
  • Browsers and browser APIs
  • Front-end build tools: Grunt, Gulp, webpack, or similar
  • Testing: unit, integration, end-to-end
  • CSS and modern libraries/extensions like Sass, SCSS, Less

While not required, experience in any of the following areas is very nice to have:

  • Security engineering
  • Ethereum dapp development
  • Involvement in EIP authoring or review processes
  • Refactoring large, complex codebases
  • Design systems
ConsenSys is the leading Ethereum software company. We enable developers, enterprises, and people worldwide to build next-generation applications, launch modern financial infrastructure, and access the decentralized web. Our product suite—composed of Infura, Quorum, Truffle, Codefi, MetaMask, and Diligence—serves millions of users, supports billions of blockchain-based queries for our clients, and has handled billions of dollars in digital assets. Ethereum is the largest programmable blockchain in the world, leading in business adoption, developer community, and DeFi activity. On this trusted, open source foundation, we are building the digital economy of tomorrow.