Behavioral interview. Asked about current experience and projects. Not entirely technical but did ask about experience with C/C++ and hardware debugging tools. Asked about experience with RF systems and wireless communication protocols.

I had an initial phone screen, followed by an onsite interview. Despite performing very well in the interview, I was told I didn't have enough senior level experience, due to a new director coming in and changing the requirements. I feel were very disrespectful of my time, behavior that is becoming depressingly common among employers.