I need a full-stack developer who can deliver a complete taxi-travel application for both Android and iOS. The core focus is building smooth Rider, Driver, Admin and Customer experiences backed by either a Python (Django / FastAPI) or Node.js (Express / Nest) server—feel free to choose whichever stack you are strongest in as long as it meets the requirements below. Core features I must see live in the first release: • Real-time tracking on a map so riders and drivers can view one another’s live location. • Secure payment integration supporting major cards and in-app wallets. • A persistent booking history accessible to all roles, with the right data filtered per user type. The mobile front-end should run flawlessly on both platforms from a single codebase—React Native, Flutter or a similar cross-platform framework is fine as long as you handle App Store and Play Store submission. Deliverables I will review before sign-off: 1. Fully functional Android & iOS builds. 2. Documented REST/GraphQL API with auth, live location endpoints and payment hooks. 3. Web-based admin panel for trip monitoring, user management and fare configuration. 4. Source code in a private repo, cleanly structured and accompanied by a brief setup guide. 5. Short demo video showing real-time tracking and a complete ride flow from booking to payment receipt. Please outline your proposed tech stack, timeline for an MVP, and any similar taxi or logistics apps you have shipped.