Development of webshop with over 12000 items (incl. variable products) - Woocommerce or Magento

Template is available, because the webshop has already been developed.
-----Due to errors a new Webshop must be created. ------

We are looking for a professional developer who is able to develop the webshop according to template & requirements. We also need consulting.

CSM systems: Magento or Woocommerce

Main requirement:
- Development Webdesign
- Development functions & processes for Webshop
- Upload 12'000 items (which of 5000 items are variable products)
- Dropshipping: Automatic update of availability through interface to suppliers
- Filters
- categories incl. megamenu
- Fast loading times
- SEO Basic
- Fil
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