I was contacted by an internal recruiter and had three rounds of phone interviews with various team members. After the third round, I did an on-site interview at the Mountain View office.

I was warmly welcomed and taken to a (very) small interview room with a whiteboard and two chairs. I met five or six people for about a half hour each.

Questions ranged from technical, though not too specific, to a few brain teasers. Nothing at all was unreasonable.

I was given ample opportunity to ask lots of questions of the interviewers and found that everyone was both really nice and very bright. Midway through the day, we had lunch at the awesome cafeteria and took a stroll around the buildings.

Some interviewers were better prepared than others. However, the best question came from a person who, by his own admission, wasn't all that prepared. He was busy trying to solve a problem and didn't have time to prepare anything specific.

He asked for my input, gave me his laptop, and let me work on the code to see what I would come up with. The task specifically involved adjusting the rendering of data points on a map to match a particular template.