I’m building a mobile e-commerce application and need an experienced Flutter developer to take it from UI mock-ups to a fully functional release on both iOS and Android. The app must feel lightning-fast and intuitive, with these core capabilities baked in from day one: • Product search and filter that handles large catalogues without lag • A reliable shopping cart flow that remembers the user’s picks across sessions • Secure payment-gateway integration for card, wallet, and any future methods I add I will supply brand assets, product data, and the necessary API endpoints; you wire everything together in clean, null-safe Dart code, follow Flutter’s best practices, and keep the architecture easy to maintain. Deliverables • Complete Flutter source code and project files • Build instructions plus a short setup/read-me • A test build (APK or TestFlight) showing all three features working smoothly Acceptance criteria 1. Search returns accurate results in under two seconds on mid-range devices. 2. Cart persists after app restart and syncs correctly with the backend. 3. Payments process successfully in both sandbox and live modes without crashes or leaks. If you’ve launched an e-commerce Flutter app before, show me a link or repo snippet and let’s get started.