Frontend Engineer – Mobile
Location
Canada
Posted
35 days ago
Salary
0
Seniority
Senior
Job Description
Frontend Engineer – Mobile
Betr
• Build and ship features for sportsbook, casino, and fantasy apps using React Native • Implement complex UI: market layouts, betting slips, player props, lobby experiences • Create physics-based animations and gesture-driven interactions (carousel pagers, radial controls, animated transitions) • Work with canvas-based graphics for player cards, game visualizations, and dynamic effects • Contribute to our theme-based design system with 100+ shared components • Build and maintain WebSocket subscriptions for live odds, match updates, and user notifications • Implement state synchronization between real-time streams and local stores • Handle deep linking from push notifications, attribution links, and web referrals • Integrate payment flows: in-app purchases, bank transfers, card entry with verification • Debug and fix platform-specific issues across iOS, Android, and web • Optimize performance: animation frame rates, render efficiency, memory management • Write worklet functions for animation-thread execution • Maintain E2E automation tests and contribute to CI/CD pipelines
Job Requirements
- 4+ years of professional front-end development
- 2+ years building production React Native apps (iOS and Android)
- Strong TypeScript skills with modern patterns
- Experience with Reanimated: shared values, worklets, gesture handlers
- Track record shipping polished, production-quality mobile apps
- Experience debugging platform-specific issues
- Understanding of mobile performance optimization
- Nice To Have:
- Sports betting, gaming, or fintech experience
- Canvas-based graphics experience (React Skia or similar)
- Real-time data architecture (WebSocket management, GraphQL subscriptions)
- React Native Web / multi-platform experience
- Design system tooling (Storybook, visual regression testing)
- Payment integration experience (IAP, 3DS verification)
- E2E mobile testing experience
Benefits
- Remote-First: Work from anywhere in Canada
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