Shopify Store Refine & Fulfillment Integration

I need an experienced Shopify developer to refine my existing store for four editions of the same book and integrate with a fulfillment center including Amazon, possibly Huboo/Gardners. Also need to integrate a variety of payment systems.

Requirements:
- Update product images
- Refine product descriptions
- Adjust product layout on the page
- Integrate with fulfillment centers (Huboo and/or others)

Ideal Skills & Experience:
- Proficient in Shopify
- Strong eye for product presentation
- Experience with fulfillment center integration
- Quick turnaround time is essential