I think I would be a great fit for this project as this sounds like dropshipping, and I've worked am very comfortable with this business model after 18 months working in order management, warehouse management, and community building.
Hi there - I'm Andrew, US based English speaker here. As I've mentioned above, I've worked with dropshipping stores in the past, handling orders, running paid ad campaigns, building a narrative around the products and managing customer service. Actually, my most recent contracts have been doing this exactly. With regards to your other skills requested, I can do content writing, community management, and SEO. However, I am not a designer and not thoroughly familiar with backlinking....I'd love to learn!
Feel free to send me a message - I'd love to send you a short portfolio and my LinkedIn account. Cheers!