Senior Software Engineer (MetaMask Core) Full Time (Remote)

We’re building for a future where the internet and world economy empowers people, instead of treating people like a product. Where our interactions are based on consent, privacy, and people freely associating with one another. Where communities can flourish and individuals can pursue their dreams. To accomplish that, we’re working hard to make web3 more accessible for everyone.

MetaMask is both a blockchain wallet and a gateway to the entire decentralized web. Our tools help people create communities, play video games, access financial services, make payments, invest in assets, survive economic turmoil, and more use cases than we can even predict. We exist across multiple platforms (browser extension and mobile), and we serve the whole decentralized ecosystem.

We’re Hiring for MetaMask Core

One defining aspect of engineering at MetaMask is that we don’t maintain servers or databases. All of our users data is stored either locally on device or on the blockchain. Meanwhile, real time updates to data that is rendered to the user depends on our connection with external sources that draw from on-chain data.

Managing data in this context is a unique and interesting challenge. The need for data integrity, security and privacy is very high within a wallet. To meet this need, we build and maintain MetaMask Controllers, a “Collection of platform-agnostic modules for creating secure data models for cryptocurrency wallets”.

MetaMask Controllers is the data management layer at the core of our browser extension and mobile app code. Currently, all of mobile’s functionality and a large amount of the extension’s functionality depends on this code. We are currently pursuing a goal of fully unifying this data management layer across mobile and extension.

Once we achieve this, we will grow MetaMask controllers into a “wallet SDK”. This will be an internal product that will form the foundation of our extension and mobile products, our dapp API, as well as future products (e.g. a native Desktop Client).

We are looking for engineers to help build the core of MetaMask. This should be an exciting opportunity for engineers passionate about api design, data architecture, building javascript modules for other engineers, unit tests, code abstraction, wallet standardization and/or building SDKs.

Who we are looking for

• Be growth-minded, collaborative, and can enjoy some amount of ambiguity, autonomy, and freedom to experiment
• 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 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, services or libraries) 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

Bonus Points:

• Security engineering
• Ethereum dapp development
• Involvement in EIP authoring or review processes
• Refactoring large, complex codebases

About ConsenSys Software

ConsenSys Software 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, 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.