Principal Mobile Engineer, Platform
9.0/10
Consensys
$227,000 – $272,000 USD
Remote
senior
about 1 month ago
May be outdated
cryptodevweb3React NativeiOSAndroidSwiftKotlin
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Description
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).
- •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 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, shippable milestones with clear impact.
- •Elevate developer experience & automation.
- •Improve tooling, local dev ergonomics, build/test pipelines, and release workflows for all mobile engineers.
- •Establish clear patterns for navigation, state management, and platform primitives to reduce cognitive load.
- •Push towards “push‑button” releases and reduced operational toil via automation.
- •Build an AI‑enabled platform.
- •Integrate AI/LLMs into workflows to scaffold code, enforce patterns, and improve testing and feedback loops.
- •Help define how tickets and platform patterns leverage AI safely and effectively.
- •Drive app health & performance culture.
- •Define and evolve metrics and dashboards for performance, stability, and efficiency.
- •Provide tools and guidance so feature teams can self‑diagnose and own regressions.
- •Champion shared accountability for app health across all teams contributing to mobile.
- •Multiply impact through leadership.
- •Mentor Senior/Staff engineers and influence technical direction across Wallet Platform and MetaMask.
- •Lead design and architecture reviews for critical platform areas.
- •Help shape hiring and technical culture for a lean, senior, high‑leverage Mobile Platform team.
Conditions
We’re passionate about building a diverse team of humans and as such, if you think you've got what it takes for our chaotic-but-fun, remote-friendly, start-up environment—apply anyway, detailing your relevant transferable skills in your cover letter.
- •The salary range for US-based candidates only will be determined throughout the interview process depending on experience and skills.
- •US pay range (not including bonus, equity or other benefits) $227,000—$272,000 USD.
Requirements
Would be great if you brought this to the role
Experience:
- •10+ years building and scaling mobile apps, including ownership of large, production React Native or hybrid mobile platforms.
- •Prior Staff/Principal‑level impact: leading complex, cross‑team technical initiatives.
Technical depth:
- •Deep expertise with React Native in production: architecture, performance, debugging, bridging.
- •Solid experience with native iOS (Swift/SwiftUI) and/or Android (Kotlin/Jetpack), including native modules and performance tuning.
- •Strong understanding of mobile CI/CD, release engineering, and OTA systems.
Platform & systems mindset
- •Track record building internal platforms, shared libraries, or tooling for other engineers.
- •Comfort operating in ambiguity and designing durable, reusable solutions.
- •Strong architecture and communication skills; able to align diverse stakeholders.
Leadership & mentorship:
- •Proven ability to influence without authority, set technical direction, and raise the engineering bar.
- •Experience mentoring senior engineers and shaping technical culture.
AI‑curious / AI‑pragmatic
- •Experience or strong interest in using AI/LLMs to improve developer productivity and code quality.
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