I've got my C2 degree in English, area of IT and Telecommunication. I have been moderator of few IT forums, with decent population. Even more, I have experience in NGO work, writing newsletters, publications, press kits, etc. I am as well active web developer, which means I have done jobs like page editing pretty high amount of times.
I am able to do the writing 5h/day, any period suitable for you.
Hope we will be in touch!