I applied online. The process took 5 weeks. I interviewed at Plummer (Dallas, TX) in Apr 2013
Interview
Interview was all morning (8am-12) and consisted of 5 separate individual interviews with Senior PM's and Group Leader. All interviews felt more personal and attempts to see if I fit the culture and less about what I knew. Considering the position this made the interview a lot less stressful, but I did not know this going into the interview.
Interview questions [1]
Question 1
More mindset, quality, culture fit, and less technical
I applied through a recruiter. The process took 4 weeks. I interviewed at Plummer (Dallas, TX) in May 2010
Interview
The interview process was a very comfortable. The welcome was very formal. Travel expenses were paid. I had several interview with different people from Senior Engineers and junior engineers.
Interview questions [1]
Question 1
The most difficult question was something very specific about water treatment. I can't remember what the question was but I do remember how hard it was to answer it. It felt just like answering a final question from my water treatment class in my master degree program.