I found their hiring on a related website, I applied for a position in Budapest. The interview had two rounds. I have to say, they were a bit unorganized...
During the first round I had to complete some weird tasks like finding differences between to photos and measure up, how many chopsticks are being consumed in China per month...
During the second round I had to find a solution to evacuate the whole population of Budapest in 24 hours. Also there was a riddle with lightbulbs and switches - which belongs to which without checking them visually...