I applied through a recruiter. The process took 4 weeks. I interviewed at Salsita Software (Prague) in Aug 2014
Interview
It was a joint culture & technical interview. I was asked with one math problem. It wasn't hard to solve, I think a smart person could solve it within fifteen or twenty minutes.
Interview questions [1]
Question 1
There was one math problem. It wasn't super-hard, solvable within 15 minutes.