E-commerce Mobile App Development

I am looking to develop a comprehensive E-commerce mobile application. The app should be designed with a user-friendly interface and seamless navigation, catering to both seasoned online shoppers and novices.

Key Features:
- Product Browsing: Users should be able to effortlessly browse through a myriad of products.
- Secure Payment Gateway: Implement a reliable and secure payment processing system.
- User Accounts: Enable users to create and manage their accounts.
- Customer Reviews: Integrate a section for customer reviews and ratings.
- Notification System: A system for sending notifications about sales, discounts, and new arrivals.

Ideal Skills:
- Expertise in mobile app development with a focus on E-commerce
- Proficiency in secure payment integration
- Experience in designing user-friendly interfaces
- Knowledge in creating interactive features like customer reviews and notifications

Experience with Windows desktop app development would be a plus, but the primary focus of this project is on the mobile app. Please provide examples of your previous E-commerce app projects in your proposal.