Flutter or React Native Developer — Two-Sided Marketplace App (iOS & Android)

We are building a two-sided professional marketplace mobile app for a specific US industry niche. The platform connects service professionals with clients planning events — vendor side is paid membership, client side is free. This is a serious, fully specified project ready for development. What needs to be built: iOS and Android apps launching simultaneously (React Native or Flutter) Two distinct user experiences within one app Scalable cloud-native backend — hundreds of thousands of users Real-time messaging Location-based search and discovery Stripe subscription billing with free trial and upgrade logic Full UI/UX design in Figma before development begins Admin dashboard App Store and Google Play submission included Full code ownership transferred on completion What we are looking for: At least one live shipped marketplace or social networking app we can download and review Proven scalable backend experience — not just front-end Experience with real-time messaging, geolocation, and Stripe Fixed-price milestone-based proposal Willingness to sign an NDA before receiving the full product specification What we are NOT looking for: Template or simple app developers Open-ended hourly contracts Anyone who cannot show a live shipped app To apply: send a brief intro, a live app you built that we can download, and confirm availability for a video call. Full details shared after NDA.