Cross-Platform E-Commerce App

I’m ready to move my online store into a dedicated mobile experience and need an experienced developer to own the process from concept refinement through App Store and Google Play launch.

Purpose & scope
The app’s single mission is e-commerce: let customers browse, add items to a cart, and check out securely on both iOS and Android. I’ve mapped key screens and user flows, yet the visual style and micro-interactions still need professional polish. You’ll guide the final UI/UX decisions, then build the production-ready codebase.

Preferred tech
I’m open to native (Swift + Kotlin/Java) or a modern cross-platform stack such as Flutter or React Native—as long as performance feels native and future maintenance stays straightforward.

Core deliverables
• Finished UI design aligned with my initial sketches
• Complete app featuring product catalogue, search/filter, secure checkout, basic account management and push notifications
• Integration with my existing payment gateway and backend APIs
• Deployment to TestFlight / internal testing tracks, then full release in both stores under my accounts
• Clean, well-commented source code and hand-over documentation

Acceptance criteria
The project is complete when the app passes store review, runs without critical bugs on current OS versions, and matches the agreed mock-ups pixel-perfectly.

If this sounds like a build you can drive end-to-end, I’d love to see examples of similar commerce apps you’ve shipped and hear your recommended stack.