betr

Fantasy sports with live microbetting

Frontend Engineer - Mobile

Mobile EngineeringUpdated on Nov 11

Full-timeRemote in CanadaNo salary listed

About the Job

Requirements

Four or more years of professional front-end development experience.
Two or more years building production React Native applications for iOS and Android.
Strong TypeScript skills and familiarity with modern patterns.
Experience with Reanimated, including shared values, worklets, and gesture handlers.
A track record of shipping polished, production-quality mobile applications.
Experience debugging platform-specific issues.
Understanding of mobile performance optimization.

Responsibilities

Build and ship features for sportsbook, casino, and fantasy applications 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, including carousel pagers, radial controls, and animated transitions.
Work with canvas-based graphics for player cards, game visualizations, and dynamic effects.
Contribute to the theme-based design system and its 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 card entry with verification.
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 continuous integration and continuous delivery pipelines.

Desired Qualifications

Sports betting, gaming, or fintech experience.
Canvas-based graphics experience, such as React Skia or similar.
Real-time data architecture experience, including WebSocket management or GraphQL subscriptions.
React Native Web or multi-platform experience.
Design system tooling experience, including Storybook or visual regression testing.
Payment integration experience, including in-app purchases or 3-D Secure verification.
End-to-end mobile testing experience.

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, Predictions, Social Sportsbook, Social Casino, and Arcade, with Rips and additional products coming soon. Betr has one million paying users and is one of the fastest-growing companies in the industry, as well as 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.

About the Company

betr

Fantasy sports with live microbetting

Betr.app blends fantasy sports with microbetting in online sports betting. It offers two main products: Betr Picks and Microbetting. Betr Picks lets users make multiple selections across different sports, betting on player stats with the potential to win up to 100 times their entry, adding emphasis to each choice. Microbetting enables live, instant bets on every moment of a game—plays, drives, pitches, at-bats, shots, and possessions—giving quick, real-time opportunities to win. The platform earns revenue from entry fees paid by participants; more users and more bets translate to higher income. Betr.app stands out by combining a fantasy-like pick’em experience with real-time microbets, offering both a structured, multi-pick format and the thrill of live, moment-by-moment wagering. Its goal is to attract sports fans who want to test their knowledge and instincts while turning their sports insight into potential winnings, thereby growing its user base and revenue.

Company size: 51-200
Company stage: Early VC
Total funding: $120M
Headquarters: Miami, FL
Founded: 2022

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