Custom E-commerce Site with Advanced Search

I'm looking to develop a custom e-commerce site with advanced search functionality.

Key requirements:
- E-commerce site development
- Custom platform (not Shopify or WooCommerce)
- Advanced search functionality

Ideal skills and experience:
- Strong background in custom e-commerce development
- Experience with payment gateway integration
- Proficiency in creating advanced search features

Please include examples of similar projects in your bids.