Delivery and Appointment Booking App

I'm looking for an experienced app developer to create a dual-purpose application that facilitates both parcel delivery and medical appointment bookings.

Key Features:
- Parcel Delivery: Users can schedule and track parcel deliveries.
- Medical Appointment Booking: Users can book, reschedule, and cancel medical appointments.
- User-friendly Interface: The app should be intuitive and easy to navigate.
- Notifications: Push notifications for delivery status and appointment reminders.
- Payment Integration: Secure payment gateway for transactions.

Ideal Skills and Experience:
- Proven experience in developing delivery and scheduling apps.
- Strong UI/UX design skills.
- Proficient in payment gateway integration.
- Knowledge of push notification services.
- Experience with backend development for real-time tracking.

Please provide a portfolio showcasing similar projects.