I applied online. The process took 2 months. I interviewed at Grip (Prague)
Interview
It wasn’t fast, but very structured, and the task itself was interesting. You can tell the studio knows what they look for, when you get such a detailed and brief task description at the same time. The focus was on using the existing Level Editor instead of a Game Engine with a blank project, and what Editor to use - is completely up to your choice. That makes the process of creating a test assignment fun, and as a result you can just fairly evaluate yourself by seeing the final result - fully functional level.