I was contacted for an interview after sending my resume to an employee asking around for resumes from the lab we both used to work in at CU. Interview day included 6 one hour interviews with different engineers but no HR interview, so the interview skipped all the bullsh*t and talked about the stuff that matters. All my interviewers were quite friendly and personable though, and all gave me plenty opportunity to ask them questions as well.

There were lots of technical questions, covering basic circuits, transistors, op amps, and DC-DC converters.

They had me analyze a small prototype PCB by sight to see what I could figure out, given no information about it.