WordPress eCommerce Site Development

I'm looking for an experienced WordPress developer to create an eCommerce site for selling digital products.

Key requirements:
- Site should be developed with user experience in mind.
- Should be optimized for SEO.
- Should be mobile responsive.
- Integrate secure payment gateways.

Ideal skills and experience:
- Proficiency in WordPress and eCommerce plugins.
- Strong background in SEO and UI/UX design.
- Experience with payment gateway integration.
- Familiarity with digital product sales platforms.

Please provide sample work and a project timeline.