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Consensys is the leading blockchain and web3 software company, building products and infrastructure that enable users, developers, and institutions to participate in the decentralized web. MetaMask, trusted by tens of millions of users worldwide, is the flagship product.
The Mobile Platform team treats MetaMask Mobile (iOS & Android) as a platform, enabling all feature teams to ship high-quality experiences faster by providing a secure, stable, high-performance foundation. MetaMask Mobile is built primarily on React Native with native code where performance matters.
As Principal Mobile Engineer, you will 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 the mobile platform.
Key responsibilities:
• Own mobile platform architecture: Define and evolve the architecture of MetaMask Mobile (React Native + native), optimize app-backend interactions holistically, make key tradeoffs between JS/TS, React Native, and native code, and design core platform systems (OTA, analytics, data/persistence, auth, VPN/geolocation primitives).
• 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, bundle size), and break large efforts into incremental, shippable milestones.
• Elevate developer experience and automation: Improve tooling, local dev ergonomics, build/test pipelines, and release workflows for all mobile engineers. Establish clear patterns for navigation and state management. Push towards push-button releases and reduced operational toil.
• Build an AI-enabled platform: Integrate AI/LLMs into workflows to scaffold code, enforce patterns, and improve testing and feedback loops.
• Drive app health and performance culture: Define metrics and dashboards for performance, stability, and efficiency. Provide tools so feature teams can self-diagnose regressions. Champion shared accountability for app health.
• Multiply impact through leadership: Mentor Senior/Staff engineers, influence technical direction across Wallet Platform and MetaMask, and help shape hiring and technical culture for a lean, senior, high-leverage team.
You'll work closely with engineers across MetaMask to ensure mobile apps scale with users, features, and the broader Web3 ecosystem.
