The interview mostly revolved around problems related to probability and expected value. It was more of a discussion than an interview, wherein most of the questions were followed by some suggestion, remark or a follow-up question.
Interview questions [1]
Question 1
If i roll two dice, what is the expected value of the product on the two faces
They tend to examine the logical thinkers that can communicate clearly and concisely, and some problem-solving exercises intended to explore how you gather and apply new information, very different from other tech companies' interviews.
Initial application and online assessment. Had a first round behavioral interview where they asked me about myself, my experiences, and a couple of brain teasers. The interviewer was very nice.
Phone interviews (at least 3) - questions were of mixed difficulty (some pretty hard) but the interviewers were friendly and they gave helpful hints. Kind of fun - review probability and game-type questions.