Google

I was referred internally by a friend. Soon after that, I attended one phone interview, followed by an on-site interview with five interviewers. All the interviewers did a great job guiding and encouraging me, so I didn't get frustrated. In the en

The interviewer would first introduce themselves, ask me briefly about my background, and then we'd jump into solving the problem. They encouraged me to think out loud and explain my thought process clearly as I worked through the solution.

It was long, but not too bad. The rounds were very different, with different recruiters. I would say to go through with it. Google is a great place to work.