Content for Web Page & Service Pages Improve Quality

I am looking for a Web Content writer, who can perform accurate research and improve quality of content on some of my service pages. The content on my service pages are good enough but i like to add and revise some parts, and make them longer if possible so it can attract clients.
You will be given guideline and direction and what needs to be done. Please only submit proposal if you agree with the bid and can show previous examples. The job will be awarded to a content writer who wants to stay and work, this tasks require long term commitment.

Requirements
- Excellent writing and research skills - Native English Speaker.
- Can revise and improve current content
- can dedicate him/herself to do research and come up with ideas.