Google

A full day onsite with six-hour-long interviews. Each person did a series of whiteboarding problems to see how you think and work through problems. There was also a lunch in the middle of the day.

Algorithm questions followed by behavior questions. Overall, a very friendly and positive experience. Interviewers gave a lot of hints and conducted the interview on a Chromebook. The lunch was really good, and I am really happy with the interview.

Application, shortlist, screening, online tests, interview round 1, interview round 2, interview round 3. Streamlined process, difficulty level high. Interviews were with different sets of people, all efficient and kind.