Amazon marketplace setup / product listing assistance

We are looking for someone with Amazon marketplace selling experience to assist in helping us set up our account and sell our products on Amazon UK. We have advertised this job previously but were let down by the previous person so are opening this job up again.

We are a well established online retailer currently selling through our own store as well as eBay. We're outsourcing purely due to lack of time rather than lack of tech knowledge, otherwise we'd be doing this ourselves.
We have a good understanding of what is required by Amazon (EAN codes, table rates for shipping etc).

We have around 1,000 products in total but we intend to trial only a handful of products on Amazon to begin with (3 products, 2 products have 8 size variations, 1 product has 10 size variations). The intention is to roll out our entire product catalogue in stages over the coming months.

This is a straightforward Amazon marketplace set up but anyone interested in submitting a proposal for this job should probably be aware that we won't be using Amazon's admin for managing orders. We use a multi channel order management platform from where we administer all our company orders. The intention is to use this for Amazon orders as well.
This doesn't affect marketplace setup at all. From your point of view the setup work is exactly the same.

This is an initial enquiry to gauge interest, hence the brief description. However, please contact me with any questions and I will be happy to give further details.

Thanks!