2 relatively easy phone interviews, 4 onsite interview. I did well in first 3 onsite interviews. Last interview was with so called chief cloud architect - GTS group does not have common sense how to conduct interview. I asked him some basic questions like how GPU scale, he got so wild that he started why did you come to interview with reading all those information. He also asked me about simple singleton question, I told him about Bill Pugh method he heckled shamed me. And finally he asked me about square root. I was writing a code in binary search way to explain the code he again heckled at me. I came to know this guy came to reject me. One point time I was like dude I am also done, who gives a damn about nvidia GTS group. Anyway I had offer in much better company. I have around 16 years of experience in Software industry, I never had such a horrible experience with any interviewer. Right way I did shoot an email to HR saying I am not interested with position and also I feel it would have been the same result from there side. Guys avoid this arrogant team. And also be prepared to have tons of patience because this GTS team takes their own time may 1 - 2 months to process.