I had a 30 min recruiter screen, and 60 min HM interview which was all behavioural questions. I did not make it past HM interview. Got a default rejection email with no feedback.

I made it past the hiring manager screen to the full loop and was excited about the opportunity. Unfortunately, things went downhill from there. I was scheduled for three follow-up interviews, all but one were cancelled, some at the last minute. I rescheduled two of them and they were cancelled AGAIN. I rearranged my schedule and took time off work multiple times to accommodate. After all that, I received a generic rejection with no further conversation or acknowledgment of the time I had invested.

Initial call with recruiter that went well, then hiring manager call was set to be a 45 mins call. The day of the call, they emailed saying hiring manager got pulled into meetings and needs to shorten the call. They joined late and ended in 20 mins without asking any managerial or technical questions. Super high level question about my current experience and any project. It seemed that they had already decided not to move forward and did the 20 mins out of formality. Unprofessional approach. Got a vague email from recruiter afterwards saying they won't move forward and they couldn't share any reasons.