An assignment checking over and things added to it

I am looking for someone to check over an essay of more than 1000 words and to add certain areas. This is not merely a proofreading project, as there are some areas that need to be added or enhanced. I need someone experienced in academic writing with an eye for detail who can identify any errors in the writing in addition to adding material where needed. The essay should still maintain its original concept, however, and so a solid understanding of the material is a must.

I look forward to finding the right freelancer for this project. All relevant information can be provided upon request.