O'Neil Data Systems Software Engineer interview questions

1st round: Technical interview with my Manager (for about 40-45 mins) 2nd Round: On-Site programming test, Couple other rounds with another manager and a director, and then with HR (for about 3 - 3.5 hours)

It seems like no one cares about you came there for an interview or not. I wait for another 40 minutes after our scheduled time. Finally a group leader, not the one who should interview me, came to me and asked some technical questions without having a chance to read my resume. He also asked me some theoretical questions not related to the position at all. After that, he received a call and said he must go because there are something wrong with his current project.