I applied through an employee referral. The process took 4 weeks. I interviewed at ADP (Salt Lake City, UT)
Interview
Very tough interview process. They conduct it panel style and don't give many breaks in between questions. There is some aptitude testing that helps them gauge your analytic skills.
Interview questions [1]
Question 1
Majority of them were based around "Tell me about a time when..." and you would describe the situation and resolution.