HR interview: basic interview, they tell you about the companies, salary expectation, and other things Peer Interview: Algorithm, I only solved half of the question (easier version of the actual question). After googling, the question is from leetcode User Interview: Applied algorithm and data structure in real case, a little of OOP. Logging module which run in parallel and concurrent. Very Difficult. I think I'm not solving all of the "what if" problem. User Interview really great. It's a real case problem not just hard algorithm question. The interviewer also very open and we talk a lot.