Intercontinental Exchange Software Engineer interview questions

Worst Interview experience ever...I applied online, after an phone interview with recruiter and hiring manager, I took an onsite interview at the IDC Bedford office. It was a five people, back to back interview, most of them are managers. Each manager were assigned a 30 mins time-slot as scheduled. In fact, One of the biggest manager is extremely lack of respect, before I start talk with him, he said: " I am very busy, I only have 15 mins for you". I was like 'WTF??!!! Seriously? Is this the first sentence for an interview??? Even though you are a manager, you should still at least show some respects for the person who came to interview', at that moment, I loose 120% of my interests in this company. The interview process also sucks, I am disappoint with them and they must also disappoint with me. Totally waste of time.