Copywriter to produce texts for company site and products

IT startup based in London, UK is looking for a copywriter to write texts for the company site.
These will mainly be:
* information about us;
* few case studies.

We do have a general concept, information and brief idea of what message we want to deliver in our texts. We're looking for someone that can convert it into nice, easy-to-read, descriptive, business text in English. We're trying to target different groups of people: ordinary non-technical, technical and business. Therefore, we are looking for an experienced person that can help us with that.

If the result is satisfactory for us, we'd like to initiate a long-term cooperation as we will be releasing several IT products and services to the market. And all of them will need proper copywriting.

It is project-based job, we do not have preference of working hours.

We are looking for reliable person with professional approach.

We are very interested in a way you produce your texts, meaning how it usually works and what are the steps to be taken or what information you would need from us.
Please do attach some example texts if that's possible, and do write your salary expectations.

If you do have any other skills related to writing, web content, office & admin, marketing, ads etc., don't hesitate to mention about them. However, it is not a priority.

Thanks.
AJ.