Everything was a group discussion, including the intro call, the interview, and even the written test. I felt the whole process was too time-consuming and distracting. And in each call there were so many people, I really didn't understand how things would work like that. The CEO even says this is how the company operates, everyone is on call for full 8 hours.

Too time consuming. Their group interviews are too long, felt like they should be doing better filtering. They must also show the basic courtesy to let the interviewees know if they are not selected after multiple rounds of interview.