Interactive Brokers Java Web Developer interview questions

Arrogant. Best word to describe the senior people. Even the HR knows this. Applied online, got a fairly easy 18 ques java test, did phone interviews and was called onsite. Questions on phone interview ranged from servlets to java 8 to JavaScript. Onsite Interview was fun. Met with probably the coolest hiring manager in the company. Gave maths test, solved the java test, had discussions with few senior developers. (Every one was highly impressed). Now was the last interview and I met a senior java developer (at-least he calls himself that). He was trying to be witty and I barely understood a single word because of his Spanish accent. I had no option but to ask him twice or thrice for each question and this pissed him off. All the while he was shouting at someone on phone in Spanish and it was extremely annoying and rude on me but I somehow carried on. Certain questions he asked made no sense to me and I argued on it but he kept on making me feel as if I just don't know anything. With full respect to him, he was wrong with many of his questions. I am glad I walked off.