Cross-Platform Transport App Development

I need a UI/UX and backend development for a cross-platform transportation app. The app should be available on both iOS and Android.

Key Features:
- Location picking
- Distance measurement
- Instant bid acceptance for drivers/fleet owners
- Payment management with a wallet feature
- Basic authentication via email and password
- API integrations as needed

Ideal Skills and Experience:
- Experience in developing cross-platform mobile apps
- Strong UI/UX design skills
- Proficient in payment gateway integrations
- Familiarity with location services and distance calculation
- Knowledge of secure authentication methods

Please share your portfolio and relevant experience.