I was very excited to work with this team that was also very interested in me joining them. Made it to the final round when it was time to speak with the CEO, 4th interview. He was late to the meeting only to email and say he needed to reschedule. We rescheduled for two weeks out. A couple of days before, the meeting was abruptly cancelled and the CEO emailed saying the position had been filled. They weren't even courteous enough to end the email with a period or a: "thank you for your time and effort you put in". I have never witnessed such an unprofessional email in my career and appalled that someone would treat others this way. 10/10 do not recommend.