Build a Multi-Payment Ecommerce Shop

I'm seeking an experienced developer to create an online shop from scratch. The shop will primarily sell physical products that require delivery.

Key Requirements:
- A user-friendly, intuitive interface for customers.
- Integration of multiple payment methods: credit/debit cards, PayPal, and cryptocurrencies.
- Secure transaction processing.
- Mobile-responsive design.
- Backend support for order management and tracking.

Ideal skills and experience:
- Proven track record in building ecommerce websites.
- Strong understanding of payment gateway integration.
- Experience with security protocols for online transactions.
- Good design sense for creating visually appealing and functional online stores.

Please include examples of previous work and a brief outline of your approach to this project.