Senior Front End Mobile App Developer (REMOTE)

About Betr Founded in 2022 by Joey Levy and Jake Paul, Betr has built the world's first real money gaming super app. In September 2023, Betr launched Betr Picks, which has quickly become one of the leading fantasy sports pick 'em products in the U.In September 2025, Betr launched Betr Social Sportsbook and Betr Arcade. Since launch, Betr Social Sportsbook, which is live in 32 states, has been one of the fastest growing products in the industry. Betr Arcade has quickly emerged as a leading skill games platform and is live in 38 states. Betr Social Casino soft launched in February 2026 and is launching in 28 states. Betr is also the most followed sports gaming company on social media in the world, featuring 24/7 original content created by Betr Media, the company's internal media division.

Betr is backed by Fuel Venture Capital, Aliya Capital Partners, IA Sports Ventures, FinSight Ventures, Florida Funders, Harmony Partners, 8vc, and other top-tier investors.

Betr is looking for a Senior 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.

Build and ship features for sportsbook, casino, and fantasy apps using React Native

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

Implement state synchronization between real-time streams and local stores

Handle deep linking from push notifications, attribution links, and web referrals

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

4+ years of professional front-end development

• 2+ years building production React Native apps (iOS and Android)
• Strong TypeScript skills with modern patterns
• Track record shipping polished, production-quality mobile apps
• Understanding of mobile performance optimization

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)

E2E mobile testing experience

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

Remote-First: Work from anywhere in Canad

At Betr, we're driven by a shared vision to reshape the sports & gaming industry. We believe in pushing boundaries, embracing diversity, and fostering a collaborative culture that extends beyond the world of sports. 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.