I am a former University Mathematics and Computer Science Academic who has been using LaTeX for over 20 years now. I have written 2 dissertations, a text book, course notes and 13 peer-reviewed research papers using LaTeX. I also have 5 years of experience copy editing LaTeX files for students, academics and a Mathematics Journal. I also have considerable experience with a number of LaTeX graphics packages and am currently producing LaTeX code for a US company.
Because I am so familiar with LaTeX, I am able to produce accurate, well-presented LaTeX documents in a relatively fast time.