Applied for SDE3 role through their career website of the company - Recruiter reached out to me in next days and first round of interview was scheduled. - First round was scheduled for 1 hour which was supposed to be DS - Interviewer was not trained to take an interview and seemed to be too arrogant - He give a system design question for the flow which he have worked in the industry for many years and expecting me to come up with same solution in 45 -50 mins. - Then he asked me the other design question. - Asked unnecessary question to prove me wrong . On giving correct answers he changed question and assumptions and extended interview to 1hour 30 mins. I understood that he just want me to prove wrong so I have to cut the call telling that I have another meeting. I dont understant why these big companies cant invest in training on how to take interviews