Frontend Engineer – Mobile
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Job Description
Frontend Engineer building React Native and TypeScript apps for Betr's real-money gaming super app. Shipping real-time sportsbook, casino, and fantasy experiences across iOS, Android, and web.
Responsibilities:
- Build and ship features for sportsbook, casino, and fantasy apps using React Native
- Implement complex user interfaces, including market layouts, betting slips, player props, and lobby experiences
- Create physics-based animations and gesture-driven interactions
- Build canvas-based graphics for player cards, game visualizations, and dynamic effects
- Contribute to a 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, including in-app purchases, bank transfers, and verified card entry
- Debug and fix platform-specific issues across iOS, Android, and web
- Optimize animation frame rates, render efficiency, and memory management
- Write worklet functions for animation-thread execution
- Maintain end-to-end automation tests and contribute to CI/CD pipelines
Requirements:
- 4+ years of professional front-end development
- 2+ years building production React Native apps for iOS and Android
- Strong TypeScript skills with modern patterns
- Experience with Reanimated, including shared values, worklets, and gesture handlers
- Track record shipping polished, production-quality mobile apps
- Experience debugging platform-specific issues
- Understanding of mobile performance optimization
Benefits:
- Remote-first: Work from anywhere in Canada
- High-impact ownership of significant features
- Technical work with real-time systems, hardware-accelerated graphics, and physics-based animation
- Opportunity to work across sportsbook, casino, and fantasy verticals
- Growth opportunities through expansion into new states and product lines
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