After the initial phone screen, which includes technical questions and a peer coding exercise, I was invited for an on campus interview. This includes multiple technical rounds which include system design, and white board coding. What is most important, especially if you are an experienced engineer who has not interviewed for some time, is to study core data structures and algorithms, and to practice coding on a white board. I used the Algorithm Design Manual and the CLRS Introduction to Data Structures and Algorithms as study guides. Its Google, the team was great and super intelligent, but I ultimately selected a start up for my next, and current opportunity. I won't go into offer details, but I will say that turning down a Google offer is very difficult.