The interview process of Deep mind is very interesting and actually enriching. They will do multiple rounds. I survived 5 of them over a period of 4 months before being rejected. The first step (1 hour) was a informal chat to discuss my CV and understand which role would have suited me best. In my case it was research scientist. The second step (3.5 hours) was a technical interview, a quiz, where ML questions were asked. These questions covered statistics, basic math, derivatives, integrals, some theorems, and a lot of probability theory, testing, and more. The third step was a coding exercise, DM gave me a paper and asked to re-implement it and write a report about it in 2 days. you can find the code in this public github repository that belongs to deep mind and to which i contributed during the exercise https://github.com/letitiaa/repo2 . Seems that deep mind does not have enough money to pay for a private repo (as we will see later seems that deep mind does not have enough money also to pay for a candidate to visit them). The fourth interview (2.5 hours circa) was conduced by other three people and was about my own work during my PhD. They were nice and kind and the oldest of them asked questions like "how would you design a system that does this and that with deep learning?". At that point in time i was told that my coding exercise and previous interviews had been very good and that I would have visited them in london the following week. After a few days I was contacted again for a fifth (almost 2 hours) unplanned interview with the people who directed the department I would have worked for. I totally underestimated this interview step and I didn't perform as good as before. They were not as kind as the previous interviewers, they arrived late and they were harshly judging my previous work (the interviewed didn't like it, he said). I thought it was a test (after all they had tested everything already) and I defended it as I could. I obviously was prepared for something else. As a result I have been told (as I expected right after the interview), two days after, that they had decided not to employ me or invite me to London and, if i wanted, i could re-apply in the future. After all it was an interesting experience because I think the questions they ask and the exercises that they make you do are great, but it was also an enormous waste of time for me since during the 4 months i was under interview with them i could not plan what to do since i was expecting to go at any time. They could have chosen to do everything in one week but they took several months instead. They showed that they are cheaper than the majority of startups around the world that usually will invite you after the second round of interview and in general after 1 week they first contacted you. An experience that was interesting but that I will not repeat (my education is german and I believe in efficiency).