There were 2 technical rounds before the virtual onsite. For each of them, I was tested on Python and SQL easy questions. Then the onsite consisted of 4 rounds where the interviewer didn't show up for the last round. Completely unorganized - they didn't have the record of my previous interviews and were asking me what was I tested on. For the onsite too, first 2 rounds were again Python and SQL (seemed very repetitive), although I was told that it would be on probability/stats for one of them. Also, one interviewer showed no interest in the interview. Total waste of time and energy.

First interview with their CTO, then 2 rounds of interview with two data scientists. 2nd round focused on previous projects and coding. The third round was on previous projects and questions on machine learning. Then they rejected with an auto-generated email. After that there would have been another 4 rounds of interviews as per prior communication. The interviewers are not organized at well. First they said after CTO round there will be a coding and then virtual onsite. But a third round popped up. Initially they told the third round would be coding +ML and later said only ML. The interview was scheduled for 1 hr but continued for 80+ minutes. The interviewer was not sure about what to ask. They asks a lot of question from their projects and can't explain. The interviewers are inexperienced. Total waste of time and effort.