I'm an Estonian Wikipedian, admin since 2004, and board member of Wikimedia Foundation's local chapter Wikimedia Eesti since July, 2011. I speak and write Estonian, English, and Russian reasonably well; you can try other languages on your own risk. I have applied myself as a philologist, philosopher, assyriologist, journalist, book editor, copy editor, translator, and in some other, less practical fields.
I mostly work on Estonian Wikipedia, although I might do some insignificant changes here, too, on interwikis or Estonian matters. If I can offer any help in Estonian-Byelorussian cooperation, just ask (preferrably on et:WP).