Cross-Platform E-commerce App Development

I need an experienced mobile app developer to create a comprehensive e-commerce application available on both iOS and Android platforms.

The app should provide a seamless shopping experience with a user-friendly interface and robust backend.

Key requirements include:
- User Authentication: Secure sign-up/in
- Product Browsing: Categories, search, filters
- Shopping Cart: Add/remove items, quantity adjustments
- Secure Payment Gateway: Multiple payment options
- Order Tracking: Real-time updates
- User Reviews and Ratings: Product feedback
- Wishlist: Save items for later
- Notifications: Deals, order updates
- Admin Panel: Manage products, orders, users

Ideal skills and experience:
- Proven experience in developing e-commerce apps
- Strong knowledge of UI/UX design principles
- Experience with secure payment integration
- Familiarity with both iOS and Android development
- Strong backend development skills
- Ability to provide ongoing support and updates

Please provide examples of similar projects you've completed.