Interviewed for two different positions on two separate occasions. First interview consisted of three people (1 at a time): senior analyst, the department supervisor, and QA supervisor. They were professional and courteous, but they never called back. Second interview took place a month or two after the first for a different position. Two people this time (again, one at a time): department manager and supervisor. This time, HR was unprofessional. We scheduled the interview one week after I was called. I tried calling HR to confirm my appointment two days before the interview but my call was never returned. So I came in as scheduled and she did not even know that I had an appointment. She went back to her office and realized that she had scheduled me for the same day of the week but for the week after (so two weeks after she called me). She apologized and said she'd be able to notify the interviewers, but asked me to return in three hours. Since I was coming out of town, I decided to visit some places around Irvine in the meantime. When I came back and finally sat down with the interviewers, they started by asking me why I came in on the wrong day. Cleary, HR did not explain herself so my interview started off with me carrying that burden. The first interviewer was professional and asked general questions. The second interviewer asked technical questions, but was rude and unprofessional. He mocked a previous company that i worked for since he was also a former employee there and judged me for it.