One brief hackrrank question, question was pretty easy followed by a Phone interview with a technical question at the end. The onsite was 4 interviews with a total of 5 technical questions. First four ranging from medium to hard leetcode-type questions. I've also had around 3 design questions, each from a different domain: I've had a question on website design, feature selection (ML), and database optimization. Each question was extremely interesting to think about and the interviewer was an amazing soundboard. Although I felt pretty good after the interviews, I received a rejection a few days after the on-site. I feel that I've answered the coding questions well so I wonder what sort of candidate they were looking for. The Yelp HQ visit was an amazing experience and the engineers were really nice, regardless of the outcome.