First Round was coding and SQL , Interviewer was clueless if answer was right and what was the answer Second Round System Design , Interviewer again was not prepared and asked for 10 mins to look for questions and was on on call support pausing calls in between Thrid Round was Product sense , Really dint understand what was the expectation dint understand questions / slang dint even understand when he was switching context Cultural Fit and Managerial : No one was from DE team or actual hiring team no one had answer about actual team After completing all round go feedback saying technically not fit , instead would have rejected after 1,2 round would have saved time and efforts waste of time and non productive and zero learning