Full Stack Service Marketplace App

I'm looking for an experienced full stack developer to build a service marketplace app for both iOS and Android platforms.

Key features include:
- User profiles and ratings
- Booking and scheduling
- Payment integration

Ideal skills and experience:
- Proficiency in mobile app development for iOS and Android
- Strong backend development skills
- Experience with user authentication and database management
- Familiarity with payment gateway integration
- UI/UX design knowledge is a plus

Please provide examples of previous work.