Driver Bidding Taxi Platform

I need a streamlined taxi-booking backend focused solely on drivers and dispatch. The system breaks down into two key components:

1. Driver mobile app
• Receives ride requests that arrive already priced in several preset tiers.
• Lets the driver tap one of those price options to submit a bid—fast, with no manual typing.
• Shows real-time request details, navigation links, status updates (en-route, picked-up, completed) and basic earnings history.
• Push notifications must alert drivers the moment a new request appears or when their bid wins.

2. Web-based admin panel
• Imports ride requests automatically from our existing system (API or scheduled file drop—whichever you advise) and routes them to available drivers.
• Provides live tracking of active trips, bid activity, driver availability, and basic reporting.
• Offers CRUD control over driver accounts, preset price tiers, and system settings.

Core acceptance criteria
• Clean, responsive UI on both app and panel.
• Seamless import of external ride data with no manual intervention.
• Bid flow limited to the predefined price choices; no free-form pricing.
• Stable build ready for production, tested on at least one Android device (iOS optional but welcome).
• Clear hand-over: source code, build instructions, and a brief admin guide.

Feel free to recommend the tech stack you believe will ship a reliable cross-platform driver app and a secure admin dashboard within a reasonable timeline.