Development of Scalable Mobility & Logistics Platform

We are looking for an experienced mobile app and web development team to build a scalable mobility and logistics platform similar to Uber/Bolt/Gojek with the following modules:

Core Features:
Parcel delivery using electric bikes
Electric Vehicle hire (self-drive & chauffeur)
Moving truck bookings
Ambulance dispatch service
Real-time GPS tracking
Wallet/payment integration
Driver/rider app
Customer app
Admin dashboard
Technical Requirements:
Flutter mobile development (iOS & Android)
Robust backend (Node.js or Laravel preferred)
Real-time tracking using Firebase or Socket.io
Google Maps integration
Payment gateway integration (Paystack/Flutterwave)
Scalable cloud infrastructure
Clean UI/UX
API documentation
Deployment support

What We Need From You:
Previous experience building ride-hailing or logistics apps
Portfolio of similar projects
Timeline estimate
Development milestones
Maintenance/support options
Weekly progress updates
Full source code ownership upon completion

Important:
We are NOT looking for generic template customization only. We need a reliable, scalable product with strong architecture and long-term support.

Please include:
Similar apps you have built
Tech stack recommendation
Estimated timeline
Team structure
Estimated total cost

Deadline: 3 weeks