I was interviewed for a contract role. There was no JD shared despite of me asking for the same. The interviewer(s) changed in the call and I was introduced to two new interviewers who would take my interview. They were shooting questions one after another without letting me breathe in between. I have over 21 years of experience and without a JD it was difficult for me to understand what to mention and what not and what exactly skill they are looking for. Luckily I didn't get through but if I would have been, I would have said NO. It was very very unprofessional interview. It seemed like they had made up their mind and looking for excuses to fail.

One Recruiter meeting - one on one to discuss experience and the role One Technical interview around one week later - ~5 detailed technical questions. Fairly formal format and style