Senior Backend Engineer, ConsenSys

• Growth-minded and collaborative, and who thrives in an environment with some ambiguity, autonomy, and the freedom to experiment
• Proficient and thoughtful with asynchronous and synchronous communication and with giving and receiving feedback
• Supportive of their team’s collective performance and growth
• Successfully working in a fully remote environment, individually and within a team
• Respectful, patient, and empathic in every interaction and relationship with their coworkers and the community
• Able to work towards technical clarity amidst competing viewpoints
• Enthusiastic and unwavering on shipping high-quality code
• Interested in working with partners across the Web3 ecosystem on shared Wallet API standards
• 4 years of JavaScript, TypeScript, and Node.js experience
• 2 years of experience working on a team of at least 3 other engineers with a strong focus on peer reviews
• 1 year of working experience with building/deploying dapps and/or web3/ethers.js libraries
• 2 years of experience with architecting, implementing, and/or managing externally-facing APIs (used by developers not belonging to the same organization)
• 2 years of experience managing an existing codebase
• 1 year of experience owning and managing unit, integration, end-to-end tests, and/or testing frameworks/strategies
• 1 year of experience with JSON-RPC, Swagger, and/or OpenAPI

Desirable

• You’ll get to work on the tools, infrastructure, and apps that scale these platforms to onboard one billion participants and 5 million developers
• You’ll be constantly exposed to new concepts, ideas, and frameworks from your peers, and as you work on different projects — challenging you to stay at the top of your game
• Empowering developers to deliver great decentralized user experiences is at the heart of MetaMask’s purpose. From the beginning, we have done so by providing the web with an API that allows any developer to turn their site or web-app into a decentralized app connected to the blockchain
• Currently the MetaMask Wallet API allows dApps to do things like: propose transactions to users, access the address of the users current account, use keys in MetaMask to help users encrypt and decrypt messages, propose to users that they sign specific messages, access the connected node/provider and call all methods on the Ethereum RPC API, and to propose that users add and switch to a specific network
• We enhance and expand this list of capabilities and build tools to help other teams build new capabilities themselves
• Build and maintain Wallet API infrastructure and tooling
• Help to manage and govern a pipeline of proposed new APIs
• Work with partners and standards bodies across the Web3 ecosystem to shape wallet API standards
• The senior software engineer role is a critical part of this team. They would be responsible for creating and managing the API that all MetaMask developers are using
• As web3 evolves, the API needs to evolve with the larger ecosystem. This requires a team of highly dynamic and agile software engineers to serve MetaMask’s developer community
• Because of the complexity and nascency of web3, most of our API have a very long lifecycle after being made publicly available. The engineer who takes on this role will be the guardian of a high-quality API with a long lifecycle in a rapidly evolving ecosystem
• This engineer must have a long-term mindset when planning and designing the API as well as introducing any new major change