Contacted by a recruiter via LinkedIn, I had an initial phone screen and then an onsite interview in Mountain View. The whole process took about a month.

The recruiters were very communicative and flexible in scheduling the interviews.

The interview consisted of five approximately 45-minute modules, ranging from code review and incident management to architecture. I would rank the difficulty as medium (compared to Amazon, Google, and Bloomberg).

Your success will depend on answering the questions the way interviewers want. Ask a lot of questions to figure out what they want.

I did not receive an offer because my answers were misconstrued as not having particular experience, when in fact I did have significant experience in that area. The recruiters gave me some feedback, which is not the norm.

As far as what to 'review' before the interview, I don't have a great answer, since the topics touch a large number of DevOps subjects.

Signed an NDA, so not posting any questions.