Website plus Shop

I'm looking for a freelancer to help create a comprehensive website plus shop. No preferred website platform has been chosen, however, services will be the main thing being sold within the shop. We expect more than 50 products or services to be listed in the shop. The freelancer should have experience creating and managing a website plus shop (incl. payment services). Experience with interfaces into accounting software "sevDesk" would be desired.

We are looking for someone with advanced knowledge, who is reliable and able to meet deadlines.