I applied online. The process took 1+ week. I interviewed at ADP (El Paso, TX) in Feb 2016
Interview
I was asked a number of questions by phone. The interviewer actually called me about 5 minutes late. He proceeded to ask me a number of questions in regards to my capabilities and about my interest in the company. I was then told that if I was chosen for a face-to-face interview with the hiring manager.