I was flown out to their headquarters in Warsaw, Poland. They paid for all travel expenses, accommodation (2 nights in a 4-star hotel) and food. The interview consisted of 5 rounds, each taking 45 minutes. Every interviewer covered a different topic. All questions could be found on leetcode type of websites, other than a single question that was system design. Overall, I did not prepare well enough, but after a couple of days of leetcode, and covering some design principles and I don't think anyone coming from a University should have a problem. You can use any language you want, and the programming is on a whiteboard.
Interview questions [1]
Question 1
Please design classes that can represent a software used in audio and video editing. It can combine multiple audio tracks, and has a single video.
2 calls, mostly behavioral questions. You are also asked some basic technical questions too. Overall a very simple interview process. It took around 30-45 minutes per interview. They also did some basic background checks.
Coding round-> tech interview-> HR round. The coding round had 2 questions and only about 20 students got selected. After which they had HR rounds where only about 5-6 got selected