Shopify E-commerce Site Development

I need a Shopify e-commerce website. The site will sell both physical and digital products.

Requirements:
- User-friendly navigation
- Secure payment gateways
- Mobile-responsive design
- SEO optimization
- Integration with social media

Ideal Skills and Experience:
- Proven Shopify development experience
- Knowledge of SEO and UX/UI design
- Familiarity with both physical and digital product listings
- Strong portfolio of previous e-commerce projects

Please include samples of your work and a brief outline of your approach.