Custom Shopify Store Design

I'm looking for an experienced Shopify developer to create a custom-designed store for selling digital products.

Requirements:
- Custom design to enhance UX/UI
- Mobile-responsive layout
- Integration of payment gateways
- SEO optimization
- Setup of digital product delivery system

Ideal Skills:
- Proficiency in Shopify
- Strong design skills (portfolio required)
- Experience with digital product sales setup
- Knowledge of SEO best practices
- Familiarity with payment gateway integrations

Please include relevant experience in your bids.