Limited Area Grocery Delivery App

I need an Android app for a limited area grocery delivery system, similar to Zomato but without payment gateway integration.

Core functionalities:
- User registration and login via phone number and OTP
- Order tracking
- Delivery scheduling

Ideal Skills & Experience:
- Android app development
- Experience with user authentication systems
- Familiarity with order tracking and scheduling functionalities
- UI/UX design for a user-friendly experience

Please provide examples of similar work done.