My situation was a little bit different because I started as a summer intern for the company, then interviewed for a full time position. For the internship interview, I first took a test online. It was pretty easy basic math, but apparently many people don't do well on it. After that I interviewed with one of the project managers as well as the head of the department I would be working in. When I interviewed for my full time job, I interviewed with 3 different executives, all separately, and two guys who would be my peers if I got the job. They evaluated my skills by having me spot problems on a screen from the software.