E-commerce App Development

I need a skilled app developer to create a comprehensive e-commerce application. This app should be developed for both iOS and Android platforms.

Key features of the app:
- Product catalog and search: The app should have a user-friendly interface that allows customers to easily browse and search for products.
- Payment gateway integration: The app must be integrated with a secure and reliable payment gateway to facilitate seamless transactions.
- Order tracking: Customers should be able to track their orders in real-time.

Ideal Skills and Experience:
- Proficient in iOS and Android app development
- Extensive experience in developing e-commerce applications
- Strong understanding of UI/UX principles for e-commerce
- Proven track record of integrating secure payment gateways
- Experience with real-time order tracking systems.