Mobile Design Engineer: React Native Motion & UI

Favia; United Kingdom; Remote; GBP 89,000 - 134,000; Full time

Job summary

Favia is seeking a mobile-focused React Native specialist to own the feel of the Favia app—from instant trade confirmations to smooth charts and responsive sheets. You’ll work across motion, gestures, and transitions, balancing the JS and UI threads to deliver trust through polished UI.

You’ll evolve the mobile design system, collaborate with product designers, and profile rendering on lower-end devices. If you love shaping how a fintech product feels as much as how it works, join us.

Qualifications

• The candidate has a portfolio demonstrating craft in mobile apps.
• Deep React Native fluency with focus on motion and UI responsiveness.
• Experience reading frame timelines and optimizing JS vs UI thread performance.
• Ability to collaborate with designers to elevate motion design.

Responsibilities

• Own the motion and interaction layer of the Favia app, including easing, springs, gestures, transitions, haptics, and sound.
• Evolve the mobile design system and own components used by engineers (gesture handlers, transition primitives, animated containers, motion tokens).
• Partner closely with product designers to elevate motion and interaction design from concept through implementation.
• Profile and optimize rendering performance, especially on lower-end Android devices.
• Contribute to architectural decisions affecting UI responsiveness, state management, render cycles, and data flow into the view layer.
• Raise the bar for what 'great' means by setting patterns and leading by example.

Skills

Portfolio

React Native

Reanimated

Motion design

Performance optimization

English communication

Education

Bachelor's degree in CS

Tools

React Native Skia

Swift/Kotlin bridge

Job description

Favia is seeking a mobile-focused React Native specialist to own the feel of the Favia app—from instant trade confirmations to smooth charts and responsive sheets. You’ll work across motion, gestures, and transitions, balancing the JS and UI threads to deliver trust through polished UI.

You’ll evolve the mobile design system, collaborate with product designers, and profile rendering on lower-end devices. If you love shaping how a fintech product feels as much as how it works, join us.