USD per year
Principal Mobile Engineer, Platform - MetaMask
GLOBAL - Remote Full-time Apply Consensys is the leading blockchain and web3 software company founded by Joe Lubin, CEO of Consensys and Co-Founder of Ethereum. Since 2014, Consensys has been at the forefront of innovation, pioneering technological developments within the web3 ecosystem. Through our product suite, including the MetaMask platform, Infura, Linea, Diligence, and our NFT toolkit Phosphor, we have become the trusted collaborator for users, creators, and developers on their path to build and belong in the world they want to see. Whether building a dapp, an NFT collection, a portfolio, or a better future, the instinct to build is universal. Consensys inspires and champions the builder instinct in everyone by making web3 universally easy to use and develop on. Our mission is to unlock the collaborative power of communities by making the decentralized web universally easy to access, use, and build on. 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. You’ll join a network of builders that reaches the edge of our ecosystem. Consensys alumni have moved on to become tech entrepreneurs, CEOs, and team leads at tech companies. MetaMask’s Wallet Platform organization owns the client platforms for the MetaMask browser extension and mobile apps. The Mobile Platform team treats MetaMask Mobile as a platform: we enable all feature teams to ship high‑quality experiences faster by providing a secure, stable, high‑performance foundation with excellent developer experience and automated operations. MetaMask Mobile (iOS & Android) is built primarily on React Native, with native code where it matters. As a Principal Mobile Engineer, you’ll be the most senior hands‑on technical leader focused on mobile: setting architecture, defining standards, and driving cross‑team initiatives that shape the future of our mobile platform and MetaMask app. You’ll work closely with engineers across MetaMask, not just within Mobile Platform, to ensure our mobile apps performance and stability scale with our users, features, and the broader Web3 ecosystem.
What you’ll do
As a Principal Engineer, you will:
- Own mobile platform architecture
- Define and evolve the architecture of MetaMask Mobile (React Native + native), leaning into performance by tightly integrating with backend services and optimizing app–backend interactions holistically rather than in isolation.
- Make key tradeoffs between JS/TS, RN, and native to balance performance, reliability, and iteration speed.
- Design and steward core platform systems (e.g., OTA, analytics foundations, data/persistence, auth, VPN/geolocation primitives).
- Lead design and architecture reviews for critical platform areas.
- Lead high‑impact, cross‑team initiatives
- Drive large upgrades and migrations (React Native, navigation, foundational libraries).
- Lead structural performance and stability work: startup time, crash rate, ANRs, jank, memory usage, bundle size.
- Break large efforts into incremental,...
Founded in 2014 by Ethereum co-founder Joseph Lubin, Consensys has been part of Ethereum’s journey from before the genesis block. It incubated the first Ethereum wallet, funded early projects, and developed infrastructure to help Ethereum scale. The company supports millions of users and thousands of developers worldwide by building tools and infrastructure powering Ethereum and contributing to every major upgrade. With a global team of over 700 technologists, designers, cryptographers, product thinkers, and researchers, Consensys operates with long-term conviction, open-source principles, and deep technical rigor. It plays a critical role in fostering adoption in decentralized finance (DeFi), non-fungible tokens (NFTs), decentralized autonomous organizations (DAOs), and advocates for a decentralized future by working with policymakers globally.
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