The questions that I got were balanced between pure research (somewhat open-ended) questions, and coding/algorithms questions. This was actually much better than my interview with Google, where I felt like I was in an IQ test rather than an interview, they did not even ask what my phd thesis is about, let alone any research questions.

One of my friends referred me before Christmas. I got two phone interviews in Jan. The whole interview process takes one week. I scheduled the interview time with the interviewers.