Google

It was a great interview, with many relevant questions about my experience, but also a couple of mind-tricking questions, all of which I solved! Needless to say, it is easy to see why the company is so famous for its recruitment process.

Very difficult and technical, requiring a lot of coding. You'll need to practice many LeetCode problems before this interview. However, the interviewer was very nice and helpful, and offered advice for future interviews.

I was referred by a friend and first approached by a recruiter from Google. They asked for some basic information, and then I had a phone screen. The interview problem was hard for a phone screen, but I can't complain; Google sets the bar high.