Phone interview with a current Applications Support Engineer. Beforehand she emailed me a list of topics they would likely ask about, based on my background (not an engineer). They were: Basic Math: calculus, differential equations, and linear algebra. I had to find some eigenvectors and values. Programming Concepts: constructs, style and logic Java: OOP, compilation and syntax and structure based concepts Matlab: basic Matlab syntax, commonly used functions and documented concepts SQL and some database concepts Some of these sections involved me doing work with pencil and paper, and others involved a WebEx session and coding inside of a plain text editor. I was surprised by a number of C/C++ questions, which is what knocked me out of the running. It is an extremely engineering and detail oriented culture, and they do seem to have a checklist for the interview. In the end, I didn't know all of the material that they were looking for, despite feeling comfortable with the initial list of topics.