Android Hotel Booking App Development

I'm looking for a proficient Android developer to create a hotel booking app with the following core features: room booking, payment processing and user reviews.

Key Requirements:
- Development of an Android-only hotel booking application
- Implementation of room booking functionality
- Integration of secure payment processing system
- Incorporation of user review system for transparency and reliability
- Establishment of a user authentication system via email and password

Ideal Skills:
- Proficient in Android app development
- Prior experience in developing booking apps
- Knowledgeable in secure payment integration
- Able to implement a user review system
- Competent in creating a user authentication system

Please note: The app must be user-friendly, reliable and secure to ensure a smooth booking experience for users.