I applied through an employee referral. The process took 4 weeks. I interviewed at Langan Engineering and Environmental Services (New York, NY) in Oct 2018
Interview
Phone interview was more serious than I expected - lasted about an hour and asked tough questions. In person interview was with 3 principals of the company and was relatively relaxed. They seem to look for overall confidence and competence.
Interview questions [1]
Question 1
What is appealing to you about the private consulting business?