Scattered but comfortable. Some canned generic questions. Behavioral and technical based on major. 4 hours long rotating with 2 interviewers each time for 1 hour. If you want you can present research the day before. Typically a manager and an engineer will conduct interview. It can be difficult to come up with different scenarios for each interviewer but that is values for behavioral questions. Free lunch usually with brief update from HR. Several areas hire at once so it will typically be a group of 4-10 people interviewing at same time as other similar sized groups.

Process begins with a phone screen with recruiter, followed by hiring manager discussion, then onsite interviews consisting of several one-on-one sessions, where candidates are usually expected to deliver a presentation.