Oracle college recruiting HR contacted me stating that I had been selected to explore employment opportunities with Oracle (I did my undergraduate in electrical engineering). I interviewed with several different groups on the phone and was flown out for an on-site interview with said groups. There were a few technical questions (transmission line/EM theory, fourier transforms, etc.) to see what I knew, but they mainly asked behavioral based questions/to explain my resume. It was basically to see if I was a match for what the groups were looking for; they already seemed to know I was competent, which was really refreshing. The building was fantastic, the people were very, very smart and friendly, there was free juice/soda/coffee/tea for all employees, and there were no cubicles - just offices! I got a formal offer for a hardware engineer position - board design - about one week later.

1 initial phone screen with a recruiter, 4 technical interviews with engineers on team. Each technical interview was 1 hour long and was mostly answering questions about oscilloscopes and basic electrical engineering concepts