This recruitment leaflet I have surprisingly found in GDC (Game Developers Conference) goody bag.
All offices, both development (now also in the US) and publishing, are hiring. 1500+ people from all over the world. When I joined the company for World of Tanks project it was about 100, I believe.
Hopefully, will be even more considering multiple projects in development, especially WoT Blitz. :)
Btw, we as a company are now celebrating 15th anniversary. So, I'm assuming some congrats here.