Very long and tiring process. First, there were few phone/video interviews with technical questions and general technical quiz. Some of the questions were wikipedia-style (please define X) and didn't have much connection with the job but rather with how much you remember from your university education. Some people in this stage were assigned by random and were not the people you most likely ever work with. Many questions were asked multiple times by different people. Sometimes even the people interviewing me asked if I already had that question with someone else or not. Compared to software engineering interviews in other companies those questions were very dry and detached from typical software development activities. When I gave detailed answers to questions that were very close to my experience I got impression that the people interviewing me don't understand the answer fully, it's more like a general "knows / doesn't know" assessment. After that, there was an on-site interview with around 7 people. Questions were varied, some people were technical some were more like managers. A lot of questions asked by managers were strange and had a hidden agenda of judging your approach towards different things without actually asking you about it. This part felt more like a psychotherapy than an interview. I had a very bad impression of those people and the style of not talking to you straight but instead trying to influence you by other means. The whole on-site process was very tiring and it took almost whole day. It was very hard to keep concentration and smile at the last interview. A lot of people asked again the same questions and expected me to ask (again) questions about the company and the job itself. The structure of it and the reason of meeting all those people also seemed random. The breaks between the interviews were short and they often were lost when an interviewer forgot to finish his part on time. It was very hard to get clear information about the role. Eventually I felt like the actual day-to-day job may be much much simpler than all this interview process may suggest. Also, when it comes to cultural fit my personal impression was that they are really aiming to hire people that DREAM about working at DeepMind. Also from the questions asked by the managers it seemed like they don't want great software engineers, that want people that are eager to put the company interest first. This observation and the general impression of cult-like atmosphere made me lost interest in the company after the interview. Finally, the company is based in central London and that has as much cons as pros, maybe even more cons if you don't like big cities and things that comes with it. The office layout is typical open space with very small desks, it looks packed. People I met on the corridors during the very short tour seemed a mix of detached and smug. The atmosphere didn't seem welcoming. Right after the interviews I got a positive feedback from them with congratulations. Few days later I got an email that they will not proceed with the final offer with. No detailed reason was given, they just changed their mind.