Two phone screenings before the on-site. One with the hiring manager, the other with a recruiter.
This has been well documented on Glassdoor so I will skip the details on this part of the process.
The on-site interviews were intense. I had six, back to back. You stay in the same room as interviewers come to you. You can get a short 2-minute break for restroom in between but that's it. Lunch can be rushed and involves trying to eat while being bombarded by more questions from the hiring manager.
Each interviewer is seeking to explore if you have a particular skill/experiences which correspond to the competencies required for the job (you can see these on the job description) as well as the company values (they are on the careers page on the website - bias for action, frugality, etc).
The questions will ALL follow this format "tell me about a time...". For example: "...that you had a disagreement with a colleague. How did you resolve it and what was the outcome" Once you start answering, the interviewer will drill down asking for more details, sometimes several times.
If you consider that there are 6 interviews and each of them asking at least 5 behavioral questions, this means you have to think of 30 different answers and be prepared to back them up with smart and honest reflection, and preferably some numbers too, since everyone is very data-driven (eg "the outcome was a 20% increase in efficiency, and profit doubled the following quarter")
By the end of the day, you are beat. Make sure you don't flag toward the end. Drink a soda or eat a banana to give you a boost toward the finish line.
The interviewers will be typing into their laptops during the whole interview, so don't expect to get any eye-contact to help you steer your answers. The process seems to be taken very seriously, and since the interviewers are looking for specific examples of past behaviour which match the required competencies, try to give them what they are looking for. Don't rant, just stick to short 2 minute responses, always trying to focus on the competency (eg persuasion skills, people management, problem-solving, analysis etc).
Obviously my experience applying for a role in Instant Video was completely different from an SDE or technical position, which is why all my questions were behavioral. No teasers, no white-board, no technical.
Good luck.