I applied through an employee referral. The process took 2 weeks. I interviewed at Amgen (Thousand Oaks, CA) in Jan 2011
Interview
Internal candidate get priority. 1 round of interviews with 3-4 other managers (peers), Sr. manager, functional leads (data manager, medical monitor, or COM), and HR. They rate you compared to other candidate and hiring manager makes the decision. You deal with HR on negotiation but it gets looped back to manager.
Interview questions [1]
Question 1
Q. How did you deal with specific situation working with a challenging colleagues.
Questions range from technical experience (clinical trials) to interpersonal soft skills. They are looking for leaders and out of the box thinkers. You need to be assertive.