There is no as such a process, I got a call from the HR mentioning a DS round first , as everything was zoom based due to pandemic ,the interviewer was egoist , had no question after I solved his question in 15 mins , He was too angry for that why I solved his question. He actually compared a priority queue with hashmap ... thinking what I don't know as if a priority queue will do the same work as a Map can do or what I don't know. Then we were talking about OAuth 2.0 as I have worked on one of its implementation and I was explaining how we did it , however he was too arrogant to stick to what he has read in Internet I guess. Cause funny was he was not ready to believe why we have implemented it in certain way and its our implementation , we are not chaning the OAuth2.0 protocol with that. I mean I felt bunches of fools takes the interview , wasted my time so much and then again after few months I got a call from same HR , saying they are not able to fulfill their requirements and hence changed the panel and would move me to System Design round. However, guess what , it wasn't a system design. Anyway this time the interviewer was polite and better than before , but still a waste of time. No doubts they can't full fill their positions ever.

A couple of medium level leetcode questions. 2 system design rounds, each with a higher level engineer. The leetcode questions went for basic stack and tree DS only. The system design rounds were for log system.