Senior Mobile Engineer — Android & React Native

XOXO AI Inc.; San Francisco (CA); On-site; USD 250,000 - 500,000; Full time

Benefits offered by this job

Health benefits

Dental benefits

Vision benefits

Job summary

XOXO AI Inc. is hiring a seasoned Android engineer to own the mobile surface end-to-end, delivering a highly visual, performant app with a modern AI-enabled interface.

You will design and ship the first versions of our app, translating design systems into reusable components with pixel-perfect quality. The role requires 3+ years shipping mobile apps, deep React Native and Swift expertise, and a strong ownership mindset.

Qualifications

• 3+ years shipping production mobile apps with elite quality.
• Deep expertise in React Native and Swift, with strong instincts for architecture and long-term maintainability.
• Demonstrated ability to turn a highly visual design system into a fast, pixel-perfect product UI (components, interaction patterns, accessibility).
• Proven track record making mobile apps feel instant under real-world constraints and knowing where to look when things slow down.
• High-ownership builder who moves quickly without sacrificing code quality, reliability, or craft.
• Excited to work in-office in San Francisco 5 days a week.

Responsibilities

• Design and ship the first versions of our React Native app, taking it from prototype to production.
• Translate a highly visual design system into reusable components, motion, and interaction patterns with fluid performance.
• Build new product surfaces that incorporate modern AI/ML capabilities in ways that feel natural on mobile.
• Drive performance work across the app: rendering, startup, memory, battery, networking, and perceived speed.
• Set the bar for mobile engineering quality (testing, instrumentation, release discipline) and partner closely across the stack to ship end-to-end.

Skills

React Native

Swift

Mobile app development

Performance optimization

Ownership mindset

SF on-site

Job description

XOXO AI Inc. is hiring a seasoned Android engineer to own the mobile surface end-to-end, delivering a highly visual, performant app with a modern AI-enabled interface.

You will design and ship the first versions of our app, translating design systems into reusable components with pixel-perfect quality. The role requires 3+ years shipping mobile apps, deep React Native and Swift expertise, and a strong ownership mindset.