Cross-Platform Multi-Purpose App Build

The project centres on a single code-base mobile application that must ship to both iOS and Android storefronts. I need the full stack engineered end-to-end: user-facing screens, the API layer, real-time back-office dashboard, and cloud deployment.

Core objectives
• E-commerce: in-app catalogue, cart, checkout (Stripe & Apple/Google Pay)
• Social layer: profile creation, follow system, news-feed with push notifications
• Utility tools: location-based reminders, QR/Barcode scanner, and an offline mode for key content

I already have brand guidelines, wireframes for the first five screens, and a short technical brief. The stack choice is flexible, but React Native or Flutter on the front end and a Node/Express or Firebase serverless back end fit the timeline best. Clean, modular code, TypeScript, automated tests, and CI/CD to TestFlight & Play Console are non-negotiable.

Deliverables
1. Source code repo with commit history
2. Documented REST/GraphQL API
3. Tested builds on both stores ready for public release
4. Admin dashboard and deployment scripts
5. Post-launch support window (30 days) for hot-fixes

Acceptance criteria
• App passes Apple & Google review without rejections
• All listed features run at ≥60 fps on mid-range devices
• 90 % unit-test coverage across critical paths
• Complete hand-over documentation (setup, build, deployment)

Timelines and milestones are open for discussion once you review the brief. Let me know which stack you prefer and share one cross-platform app you have shipped end-to-end so we can align quickly.