First interview was with an HR person. Just standard questions mostly trying to figure out which data science team I would best fit in with based on my experience. I then got sent a take home challenge - it was an AirBnB data set which I was supposed to analyze and assess. The questions were fairly open ended. I was prepared for a machine learning type of analysis but this challenge was all about statistics. I don't know if this helps but this challenge was all about statistical modelling. The interview process was fair and interesting. My only complaint is with the HR rep. They did not respond in a timely manner to any of my emails. I was emailed to say that they were interested in interviewing me. However to nail down an interview time I had to repeatedly email them because many of my emails were not responded to. I was told that I would be given the results of my take home challenge by Monday but having not heard anything by Wednesday I emailed to get the results. I have also been unable so far to get real, quantitative feedback. I have emailed multiple times but have not been able to get in touch with the rep. The rep was really not on top of my progress and I found this pretty annoying. As a side note, I really dislike not being given feedback in the interview process. I spend a significant amount of time preparing for the process. As a courtesy if would be nice if the company would take the time to give me back real feedback.

Overall smooth interview process including combination of behavioral, coding, system design and research oriented questions. Through research oriented interviews you go through projects you have done and they ask questions about your work and then they propose an open problem and you should express your ideas. It is difficult to assess you performance on these interviews