I applied through an employee referral. The process took 1+ week. I interviewed at WPP (New York, NY) in Apr 2015
Interview
I was emailed by HR to set up an interview for the HR Assistant position. I then had a phone interview with the HR supervisor. It was an hour phone interview. After that I sent a follow-up email to HR to get updates about the next steps. I was never contacted after the phone interview.