Mobile Engineering Lead

Serhant

2d

About The Position

We’re hiring a Mobile Engineering Lead to own the technical direction of our mobile applications. You’ll balance hands-on development with leadership—setting standards, mentoring engineers, and shipping polished experiences across iOS and Android. You approach mobile development as a craft, and you use every tool available—including AI—to elevate your team’s output.

Requirements

• 6+ years of mobile development experience with at least 2 years in a leadership capacity
• Deep expertise with Expo and React Native - you know when to use managed workflow vs. dev builds, how to optimize bundle size, and how to debug native issues
• Strong TypeScript proficiency
• Experience integrating mobile apps with Postgres-backed APIs
• Track record of shipping consumer-facing mobile applications at scale
• Daily use of AI coding tools to accelerate development and code review
• Familiarity with frontier LLMs and practical experience integrating them into your work
• Strong opinions on spec-driven development - you believe clarity upfront prevents chaos later
• Experience building mobile apps with real-time features
• Background in CI/CD for mobile, feature flagging, and phased rollouts (EAS Update, EAS Build)
• Eye for design and user experience
• Native iOS (Swift) or Android (Kotlin) experience for edge cases requiring native modules
• Relentlessly curious - you dig into new tools and technologies before they have comprehensive documentation
• High agency - you don’t wait for permission or detailed instructions; you figure things out and drive forward
• Comfortable with ambiguity - you can pick up bleeding-edge LLM tools and make them productive without hand-holding
• Self-directed - you identify what needs to be done and do it

Responsibilities

• Lead mobile engineering efforts across iOS and Android using Expo
• Define technical architecture and establish patterns that scale within the Expo ecosystem
• Write and enforce specifications for features before implementation begins
• Ship high-quality code yourself while elevating the engineers around you
• Integrate AI-assisted development practices into the team’s workflow
• Collaborate closely with product, design, and backend teams to deliver cohesive experiences
• Own mobile release processes, performance, and reliability
• Drive adoption of Expo’s latest capabilities (EAS, dev builds, config plugins)
• The company reserves the right to add or change duties at any time.

What This Job Offers

• Job Type: Full-time
• Career Level: Mid Level
• Education Level: No Education Listed