Overall it was a pleasant process. Had one phone screen and being brought onsite next week. On site interview consists of 6 parts, one for past project deep dive, two front-end questions, one data structure and two cultural interviews. What really got me is the data structure part. I probably spend too much time on it so I couldn't finish it in time. After being rejected, I found the question is actually is one of the top 10 popular questions on leetcode, and being categorized as hard. I think if you are not a leetcoder, solving it in time does have difficulty. I am not comfortable after knowing that question is from leetcode, but I think that's what everybody is doing right now : pick a question from leetcode, hire an engineer that is good at leetcode.