A take home test followed by an interview with three people from the ML team. The final round was a non-technical interview to discuss motivations and general career topics. The test consisted of four questions, covering stats, programming and two longer questions on two ML problems. The first two are well defined, but the last two were more open ended. It seemed they were looking more for a demonstration of knowledge and thinking style than a specific answer. The interview reflected this. The technical interview went over the paperwork, asking some probing questions in places there were obvious things missing, and asking for justification of various choices. This probed my knowledge around what I had done in the test, so I feel it was gauged quite well to my knowledge level. Clearly the interviewers knew a lot more about the topic than I did so they were able to ask questions toward the edge of what I knew, meaning it was quite obvious to them the level of my ability. Overall a good experience. Lasted about an hour. The final round interview was with two management members that weren't in the ML team. This lasted about 30 minutes and covered motivations and general competency type questions. I felt overall the process was quick and efficient, and was effective at allowing me to demonstrate my personality and knowledge. The take home test came before any screening so I can understand some other reviews complaining about that, but I think the whole process was over in 8 days. More screening interviews before the test probably wouldn't have changed the outcome and would have resulted in more time invested for everyone, so I was quite happy with the format.