There are 3 rounds of interview including the first informative round called by HR. The rest two rounds are both online. Second round was group interview with two engineers. I prepared three slides of my research works and a few behavior questions. In last round, the interviewer let me to talk about those 3 slides again and we only talked for ~10 min. Maybe because I am an extremely punctual person, I had a bad impression. In the second round, one of the interviewer was late for 30 minutes and the interviewer from 3rd round was late for 20 minutes in the last round. I had very limited time to talk because interviewer said he needed to leave for a meeting, and he had his camera off during interview; I could feel that he was not listening according to the questions he asked.