Snooker Booking Website - Android APK Development

I'm in need of an Android-only APK for my snooker booking website. This application will facilitate booking time slots, and it must communicate directly with my website.

Key Features:
- User login/signup: The APK should allow users to create accounts and login securely.
- Booking confirmation notification: After a user books a time slot, they should receive a notification confirming the booking.
- Cancellation option: Users should have the ability to cancel their bookings directly through the app.

Time Slot Selection:
- The application should allow users to pick from flexible time slots.

Ideal Candidates:
- Proficient in Android app development with prior experience in creating booking or scheduling applications.
- Skills in secure login system implementation and push notification services.
- Understanding of flexible time slot systems.

Please provide examples of similar projects you've completed in your proposal.