This was a very long process. However the recruitment team was extremely helpful in keeping me completely informed at every step of the way (a huge plus). As a disclaimer, coming from years of working in academic settings I have no point of comparison. These are just my personal impressions. I was introduced to a recruiter after one of our students started working at Facebook. He was very prompt in getting back to me and setting up a phone call. He then passed my resume to another recruiter (closer to my area of expertise). Over the next few weeks, I had a number of phone conversations with different people (mostly analytic, coding and statistics type questions.) The recruiter working with me was very prompt in touching base with me after each interview, telling me how they felt about the interview and getting my feedback on how I felt about it. After a few weeks they flew me to Menlo Park for an on site interview. The on site interview consisted of a series of five 30-minute interviews with project managers, data scientists and software engineers, all of whom were very engaging and interesting people. Talks were 1/4 about my current work, a bit less than 3/4 technical questions they expected me to work through, and a few minutes of time for my questions about the company, its people and processes. The recruiter reached out to me after the on site interview and scheduled two more phone interview, and an offer was made shortly after the last phone interview.