Ride-Sharing App Backend Help

Looking for an experienced backend developer to help build the backend infrastructure for a complete ride-sharing and ride-hailing platform. What I need: Backend architecture and API development for passenger and driver mobile applications. User authentication and authorization with role-based access for passengers, drivers, and administrators. Real-time GPS tracking and location management for drivers and active rides. Ride booking and trip management APIs, including scheduling, ride requests, acceptance, cancellation, and trip status updates. Fare calculation and pricing logic based on distance, duration, and configurable pricing rules. Payment integration and transaction management. Driver registration, verification, and profile management. Database architecture and management for users, drivers, rides, payments, and platform activities. Real-time communication and push notification services for ride updates and important events. Admin dashboard APIs for managing users, drivers, rides, payments, and platform operations. Security, performance optimization, and scalable backend infrastructure. Technical Requirements: I need a reliable, secure, and scalable backend architecture that can support real-time ride operations and future platform expansion. The system should provide well-structured APIs, efficient database management, and seamless communication between passenger apps, driver apps, and the admin dashboard. Please apply if: You've developed backend systems for ride-sharing, taxi booking, or on-demand service platforms. You have experience with real-time GPS tracking, maps, WebSockets, and location-based services. You have experience with payment gateways, API development, and database architecture. You can build secure and scalable backend infrastructure. You can provide a clear technical approach, development plan, timeline, and milestone breakdown. When you apply, please include relevant backend development examples, your estimated timeline, and your fixed-price quote. I prefer someone who communicates well and can suggest the right technical architecture rather than needing detailed instructions for every step.