Google System Engineer interview questions

I am a seasoned software engineer with 15 years of excellent experience in developing highly performant software systems, and am well-rounded enough to have participated in everything from design of hardware, operating systems components, all the way to GUI widgets and interface systems. A friend of mine who works at Google worked hard to convince me to interview there, and submitted my name to his manager, who arranged for the recruiter to contact me. The recruiter was extremely arrogant from the start. He never really understood my core capabilities and seemed to discredit much of my prior work experience. I cannot easily handle personal calls during my work house, but I agreed to be able to take some phone interviews when he explained they set them up a day in advance. In actuality, both phone interviews I had a maximum of 45 minutes to leave work and make it home to take the phone call. The recruiter was very unprofessional in many aspects of communicating important details like this to me. (Details matter, unless you work at Google!) Both phone interviews went poorly, primarily because the interviewers were being exceptionally obtuse. I couldn't get a straight answer out of either of them. One interviewer tried to ask me things in non-sensical language and when I tried to ask for clarification, he got mad at me. I guess his impression of engineers are that they can read minds, or perhaps can learn his special short-hand speaking style in a 30 minute call. The worst part was the final call from the recruiter, and he said to me "At least you got to interview with Google... not everybody can say that". What an arrogant and classless attitude. I responded by saying that they should be thankful that at least they got to interview with me, because not every company can say that.

Extremely polite and reserved process. Privacy is a concern. I was contacted from a headhunter, indicated by someone from inside the company. I was presented to the company in their office, I was interviewed in several stages by developers from the company. The whole process took about one day.