Custom Control Concepts Systems Engineer interview questions

Had a quick and easy interview over the phone and was invited to do an in-person interview. The in-person interview was a lot different than I was expecting. They basically just handed me pages of problems to solve and to write down my answers while they sat there watching me. They didn't ask me any behavioral questions or questions regarding my resume (which is what I prepared for). It was a very uncomfortable experience, especially because I don't know any Engineer that has had an interview like that.