I applied through a recruiter. The process took 2 days. I interviewed at XCDS International (Kharkiv) in Jun 2019
Interview
Very comfortable. As interviewee I didn't feel any pressure. Very polite and smart interviewers.
About 1 hour +-. It was very interesting conversation at least for me:). fast and comprehensive feedback.(even if you didn't pass the interview)
Interview questions [1]
Question 1
C++/STL based questions. Like difference between std::shared_ptr and std::unique_ptr. Multithreading questions etc.
Also practical task is present.
In my case it was writing my own version of std::shared_ptr.