Google Developer interview questions

I was contacted by a google recuiter via email, which asks whether I am interested in participating tracking (computer vision terminology) projects inside google. When I replied positively, the recuiter asked me for a initial phone screen. We talked briefly over google hangout, and he decided to waive my technical phone interview, and bring me onsite directly.

Phone interview was not challenging. On site interview is challenging in that they expect your code to be very clean and for you to answer quickly. If you share your thought process in a clear, concise manner and think quickly, you should do fine. Their recruiters are pretty unresponsive. If you complete the interview and don't get frequent follow ups, expect to not get hired.