Very efficient process. Talk to hr first and then talk to two data scientist individually. The first data scientist interview is interesting. He asked and challenged me about the projects I have done and asked a coding related questions. However, the second interview from a Chinese lazy raised my concern about the work in Upstart. She started with some probability questions which is quite irrelevant to what data scientist is doing. Then she asked a for-loop question, which surprised me since we never use for-loop for large-scaling data-set. It is not reasonable to use for-loop for large data set in terms of efficiency. Overall, the first interview is good and the second one makes me feel bad. Instead of asking brain teaser kind of questions, I hope the interview can be more relevant to what data scientist is actually working on.

3 rounds, first is lead, then some peers, then hr. Totally very difficulty, since they hope candicator can work for them, no need to train. So if you are a graduate, that's not good place for you, and also very hard to get offer or their company.