A writer and copy to generate content in our website

We provide a cloud-mobile collaboration service as SaaS for SME, Corporations, Mobile operators, among others We need to review and create content for our website: product description, case studies, features, white papers, help, etc. There is no need to create all the contents from scratch: the website has been running for some years and has already contents, but we need to redefine, complete and enhance them. If we get satisfied with the work it is the possibility to sign an agreement for the maintenance of the web contents, and even of our blog. It is required previous experience in creating SaaS, Cloud, mobile related contents, for SME and coporations, in a B2B environment.