Cross-Platform Service App Development

I need a skilled developer to create a service provider app for both iOS and Android. The app should have a robust booking system.

Key Requirements:
- Cross-platform compatibility (iOS and Android)
- User-friendly interface
- Secure and efficient booking system

Ideal Skills:
- Experience in developing booking systems
- Proficient in both iOS and Android app development
- Strong UI/UX design skills
- Knowledge of secure payment integration

Looking forward to your proposals!