They called me up after seeing my LinkedIn profile. It took a while to set up because it was near the holidays, but they arranged a phone screening interview, then an onsite interview.

Both were what I have come to know as typical Google interviews. Technical coding questions, questions with several possible answers, but only one 'best' answer.

I made a lot of dumb mistakes, like leaving return statements off the end of functions even though I had gotten the main body of the function accurately, and I was quite nervous, which didn't help. They were mostly nice, although a few of them seemed resentful that they had to be running an interview.

They asked me a computer vision question that involved needing to compute the integral image, which took me a while to dredge up out of deep storage.