Discover interview questions

Application submitted in early December, first contacted by company in mid January, first phone interview scheduled the following day. Interview with the hiring manager was next. Then a panel interview with one direct supervisor and a collaborating peer. After this I didn’t hear anything back from the recruiter and eventually checked my application status online to learn I was no longer under consideration for the role. I had to email the recruiter for details as no rejection email was sent.

The recruiter / interview scheduler are very unprofessional. I gave my availability on Monday, and they literally sent out an interview invite on Saturday to schedule interviews for the following Monday. I'm so surprised to get an interview invite in the weekend! But the most funny part is they cancel the interview Sunday in the evening suddenly with a short email "Hi, we have to cancel your interview." This is so unprofessional! I have never gone through such a rude and unprofessional interview process!