I applied through other source. The process took 3 weeks. I interviewed at Delta Systems Engineering (Phoenix, AZ) in Oct 2015
Interview
The morning session was a group interview where I did most of the talking. The afternoon session was one on one where I got to ask many questions and did most of the listening. Excellent format.
There were standard questions, situational questions, and specific questions for the industry. Some of the specific questions were related to the process of wastewater and control systems. There were a few automation questions as well.