B2B Marketplace App Development

I’m putting together a B2B marketplace and need a mobile-first developer who can handle the full build for both iOS and Android. The goal is an application where suppliers and buyers meet, list products, negotiate, and close deals securely from their phones... (Budget: €750 - €1500 EUR, Jobs: Android App Development, App Store Optimization, Flutter, iOS Development, iPhone, Mobile App Development, React Native)