I applied online. They responded within a week, inviting me to take a face-to-camera interview. I had to record answers to questions on the screen, using my webcam. Questions regarded my experience with their games and C++. They were rather easy, so answering them shouldn't be a problem, although the preparation time you get should be enough to find some tips on the Internet. The following week I had a phone call regarding my background and goals. After that I was sent a Codility test, consisting of 3 tasks. They were quite challenging, at least if you aimed for high performance score, which you probably should. The next step would be an interview with team members, but the position had been closed before I got there. My overall impression was rather positive. They responded pretty fast and the person I spoke with was very nice. My only complaint is that I wasn't informed when they closed the position. Instead I had to check the application's status via Jobvite myself. An automated message would be nice.

Quite old school and lengthy interview process, which is not a bad thing. The first phase was a quick programming test via email, the second one had some standard programming questions via phone, third was a written programming test in person and fourth was mostly about culture fit.