I applied through a recruiter. I interviewed at Amgen (Thousand Oaks, CA) in Dec 2014
Interview
5 interviews with different managers. Their style is to collect opinions of as many people as possible. They call it stakeholders. But communication is pretty open. Also they usually hire people they knew before
Process was ok. First interview with recruited was fine. Second interview was with the manager. No one appeared for the second interview. Waited for 45 mins then got off. Then they notified that there was a new manager coming in and scheduled the interview again.