This was a 1:1, 30 minute interview with who I believe is the owner of the company. He had an agenda set prior to the meeting that included a blind case study. In the interview he shared that he was interviewing 30 people for this position. The case study was a bit aggressive, especially without being given any data or information to properly prep. Overall, it was an average 30 minute interview. The bigger problem that I had was when the rejection email was sent, the owner sent a blanket, rude email out to about 10+ candidates and instead of sending individual emails to all of us, we were all CC'd on ONE email. Not even BCC'd. It was highly unprofessional and a breach of privacy. At this point I'm feeling grateful that I was not moved on to the next round.