E-commerce Site Development

I'm looking to create a new e-commerce website from scratch. The site needs to be robust and user-friendly, with the following essential features:

- Product Catalog: An organized and comprehensive display of all available products.
- Shopping Cart: A seamless shopping cart experience for customers.
- Payment Gateway Integration: Secure and efficient payment processing.

Ideal skills and experience include:
- Expertise in web development, particularly for e-commerce platforms.
- Strong understanding of user experience (UX) design.
- Experience with payment gateway integrations.

Please provide examples of similar projects you've completed.