Standard interview process:

First, a phone screen, then two onsite sessions. Apparently, the headcount for the original team I was interviewing for got moved, so I had to interview with another team, which required another set of interviews.

My panel was really varied. Most of them asked pretty interesting problems in algorithms and data structures, and how to parallelize and scale algorithms to many nodes. All of them required me to code on the whiteboard. One interviewer caught me off guard with an idiotic question on OOPS and object/class design.

Standard Silicon Valley-kind of questions, but they are designed to probe if you can optimize, improve, or scale your solution.