My interview process was a bit short-lived, but this may be helpful nonetheless. The Google recruiter, who was very sweet, mentioned that the first interview would be full of software engineer questions and she gave me a handy list of topics to study. I only had about three days, so I studied that topic list to death, expecting questions ranging from operating systems p-threads, through to algorithm design and graph theory. The first interview had a strong combination of JS topical questions, mixed with very few questions about data structures and then an ultimate coding question. This last question was heavier, though lots of time was given. Definitely thought I did very well on the beginning of the interview, but that last question was a killer for me. Didn't get a second interview (received a response about a week later), but I felt the process was okay up to that point. I was incredibly nervous but after having taken the first interview, I realized that it was all built up and in my head. The questions were not difficult if basics were studied and they gave you a Google Doc to show you know what you're talking about.

The standard interview process involves five key stages: an initial phone screening, a formal interview with the hiring manager, technical or skills assessments, team-based or panel interviews, and a final culture-fit conversation with senior leadership.