Frontend Engineer - Mobile

Betr; Canada; Remote; CAD 90,000 - 130,000; Full time

Job summary

Betr is hiring a Frontend Engineer to join our mobile team and build React Native and TypeScript apps across iOS, Android, and web. You’ll own features end-to-end, work with real-time WebSocket data feeds, and ship polished products in a remote-friendly setup.

You'll work on sportsbook, social sportsbooks, casino, and arcade experiences, focusing on high-quality UI, performance, and scalable design systems. Remote-first in Canada with growth into new markets.

Qualifications

• 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.

Responsibilities

• 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.
• Work with canvas-based graphics for player cards, game visualizations, and dynamic effects.
• Contribute to our 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; optimize performance; write worklet functions; maintain E2E tests and CI/CD pipelines.

Skills

React Native

TypeScript

WebSocket

Performance optimization

UI/UX

Tools

React Native

Storybook

GraphQL subscriptions

Job description

Founded in 2022 by Joey Levy and Jake Paul, Betr has built the world's first real money gaming Super App. The Betr Super App currently consists of Picks, Social Sportsbook ,Social Casino, and Arcade - and will soon include Prediction Markets alongside other new products. Betr has one million paying users and is one of the fastest growing companies in the industry.

Betr is also the world's most followed real money gaming brand on social media.

About the Role:

Betr is looking for a Frontend Engineer to join our mobile team! You'll build React Native and TypeScript applications powering our Sportsbook, Social Sweepstakes Sportsbook, Arcade, & Casino products across iOS, Android, and web.

This is a high-impact role to own features end-to-end, work with real-time WebSocket data feeds, build hardware-accelerated graphics and physics-based animations, and ship polished products to users across multiple US states with strict regulatory requirements.

What You'll Do:

• 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

Real-Time & Integration

• 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

Platform & Quality

• 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

What We're Looking For:

• 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

Why Join Us!

• High Impact: Own significant features that directly affect user experience and business metrics
• Technical Depth: Real-time systems, hardware-accelerated graphics, physics-based animation—not just standard mobile UI
• Product Variety: Work across sportsbook, casino, and fantasy verticals
• Growth: Rapidly expanding into new states and product lines
• Remote-First: Work from anywhere in Canada

Betr provides equal employment opportunities (EEO) to all employees and applicants for employment without regard to race, color, religion, sex, national origin, age, disability, genetics, sexual orientation, gender identity or gender expression. We deeply understand the value of bringing together a team with different perspectives, educational backgrounds, and life experiences. We encourage people from underrepresented backgrounds to apply

Thank you for your interest in Betr. We look forward to reviewing your application.