I applied through an employee referral. The process took 1+ week. I interviewed at WD (San Jose, CA) in May 2012
Interview
Interview process started with a phone screen with a technical manager (above ~25 people). After a few questions about my background, he gave me information about the department and some hard drive overview information.
One week later, I was flown to San Jose for my on-site interview, which consisted of seven 1:1 interviews with engineers and technical managers followed by an informational interview with HR to discuss benefits.
Interviewers seemed very interested in my background and technical/design experiences. Some asked me technical questions (mostly textbook-based about strength, stiffness, material properties, frequency analysis), some asked about my background and projects, some asked me some "puzzlers," and all asked what I was interested in doing if I join the group (CAD, testing/qualification, or analysis).
Interview questions [1]
Question 1
What are stress and strain? How can you calculate beam deflection under loading? How can you calculate resonant frequency of a mass-spring system?