Job Description

Toast is recruiting on behalf of an early-stage sports and casino sweepstakes platform building the next generation of fan engagement products. The company is small, fast-moving, and early in its growth, with an ambitious product vision and a team of builders who care deeply about the space. This role is central to that vision: leading the transition from a WebView-heavy mobile architecture to a fully native React Native experience across iOS and Android. The ideal candidate will take real ownership over the mobile product, working closely with product, design, and backend teams to drive activation, retention, and overall user experience.

Responsibilities

Drive the transition from a WebView-heavy architecture to high-performance, fully native React Native experiences
Build and maintain high-fidelity features across sports and casino surfaces, with a strong focus on user activation and retention
Partner with backend engineers to design clean REST APIs, handling real-time data, caching, versioning, and network resilience
Collaborate with product and design to implement native-feeling animations, gestures, and pixel-perfect interaction patterns
Manage the full mobile release pipeline across CodePush, TestFlight, and Google Play, while monitoring app analytics tools such as Firebase, GTM, and AppsFlyer
Establish mobile engineering patterns, tooling, and testing standards

Requirements

4+ years of experience shipping production-ready iOS and Android apps
Deep React Native and TypeScript expertise, with strong opinions on state management, navigation, and mobile performance
Experience managing App Store Connect and Google Play Console, and profiling performance issues such as memory leaks and bridge congestion
Comfortable operating in a fast-moving startup environment, leveraging AI dev tools to move faster, and knowing when to build versus when to ship
A sharp eye for UX detail and the ability to push back constructively on product and design decisions

Nice to Haves

Background in sports betting, gaming, fintech, or other data-dense, real-time products
Experience with activation, retention, onboarding, promotions, or lifecycle-driven product work
Familiarity with app analytics, experimentation, attribution, or push notification systems
Basic understanding of Swift or Kotlin
Contributions to product thinking beyond pure implementation

Benefits

Competitive contract compensation reflecting the seniority and scope of the role
Real technical ownership from day one, with direct influence over architecture decisions that will shape the mobile product for years to come
A workstation stipend to support a strong home and hybrid setup
Team lunches, dinners, and social events including darts tournaments and live sports viewings
Hybrid flexibility from a Yorkville office in Toronto
The opportunity to help define the mobile experience for a growing platform in the sports and casino space, with work that directly impacts how thousands of fans engage with the product

Senior Mobile Developer (React Native)