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E-commerce · Loyalty12 monthsLead React Native Engineer
Prizbee
Rewards & Engagement Platform
End-to-end React Native app for the US market with gamified rewards, real-time engagement, and secure payment flows — built from product scoping to App Store launch.
60%
Faster cold start
40%
Higher engagement
2
App Store launches
US
Market launch
React NativeFirebaseStripePush NotificationsTypeScript
Product Preview
The Challenge
Launching a rewards app that drives repeat engagement
- —The client needed a mobile-first loyalty platform that could onboard users quickly and keep them returning daily.
- —Payment integration, push notification campaigns, and real-time reward tracking had to work flawlessly on both platforms.
- —Tight timeline with expectations of App Store-quality polish from day one.
Product Goals
- ✓Ship to iOS and Android App Stores within aggressive deadlines
- ✓Integrate Stripe payments and subscription management
- ✓Build engagement loops that increase daily active usage
The Solution
Gamified mobile experience with production payment infrastructure
- —Architected the full mobile app with modular feature slices and reusable component library
- —Implemented Firebase for auth, real-time data sync, and push notification campaigns
- —Built Stripe checkout flows with receipt validation and subscription lifecycle handling
Architecture
- ✓Feature-based folder structure with shared UI kit
- ✓Firebase Auth + Firestore for real-time reward state
- ✓Stripe SDK with server-side receipt validation
- ✓Sentry for crash monitoring and release stability
Technical Highlights
How It Was Built
React Native & Expo
Firebase Auth & Firestore
Stripe payments & subscriptions
Push notifications
App Store & Play Store deployment
Performance optimization
Lessons Learned
- →Payment flows require early architecture decisions — retrofitting is costly
- →Push notification strategy directly impacts retention metrics
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