The recent reviews stating a negative experience interviewing with Zscaler come as no surprise. After my initial phone screen with the recruiter, they emailed me saying that I had been moved on to the next round, which was supposed to be an hour long interview with a director of sales operations. About an hour before my interview, I received an email from the recruiter requesting to reschedule the interview and that they would get back to me in a couple of days with a new date and time. The reason they gave was that it was quarter end, which seemed a bit strange, because as far as I know, quarters end in March not April. I waited a week for the recruiter's response and followed up to indicate that I was still interested in the position. I received no reply and woke up to an auto-generated email the next day with a standard rejection template one would expect to receive immediately after submitting an application (NOT after a phone screen, being put through to the next round and then being asked to reschedule). I emailed the recruiter for feedback considering how strange this was, which of course they did not bother giving. If you're going to tell a candidate they have an interview and they spend hours preparing for it only to find out that they actually aren't going to be interviewed, the least you can do is make an effort to give personalized feedback or make up a better excuse to reject them. Overall a very unprofessional and unpleasant recruiting experience for a company that is such an established industry leader.