I applied online. The process took 4 weeks. I interviewed at Proofpoint (West Valley City, UT) in Jun 2014
Interview
I actually first applied for supporting the Proofpoint product, and that was 5-6 interviews. I got barely beat out. The recruiter then put me in for a different position that was a pilot program, and that was another 3-4 interviews, for which I got the job.