Looking for experienced copywriter

We are developing a new social network mobile, therefore we are looking for experienced copywriter to write a creative marketing content for the App from scratch

Well our mobile App can be classified as fully dynamic Apps– Similar to Twitter, Tumblr or Instagram. So, basically to simplify the idea we are merging some features of these Apps into one App. The App is an online micro-blogging, photo-sharing and social networking service.

We will provide full details, information and the concept of the App; then we are expecting the copywriter to write a creative marketing for everything from App description, feature, FAQ, web contents and more.

We are looking for an effective and 100% original content and rich in SEO keywords.

I think the best work model is an hourly work till end the project.

We want to start ASAP; however we don’t have a close deadline mostly before the end of October. One thing more; a NDA should be signed before we share details of project.

A native English speaker and marketing/Ad experience will be much preferred.