I applied through university. I interviewed at CACI International (Westminster, CO) in Feb 2019
Interview
2 sets of interviews with 2 people. The first focused on basic machine learning / AI questions, with some short and quick questions, and then one bigger design problem. The second on engineering design principles and general research thought process.
Interview questions [1]
Question 1
How would you design a system to flag malicious rogue wifi or cellular base stations.