In first round questions were asked like "past work experience", "challenges faced in last project", "What's better ? A project completed with poor code quality goes into prod or "incomplete project with great code quality goes into prod". In second F2F round mostly management related questions were asked, "what are your expectations from your lead and team", "what new technologies you would like to learn and why". In third F2F technical round technical questions were asked, "difference between between Hashmap, Hashtable and Treemap", "Find loop in the LinkedList", "one question about join(situation based)", "Situations based multithreading question - piece of code or method should be synchronized", "write program - break down the any given amount (input) into valid British coin denomination, kind of coin machine. e.g. if the input is 435 then you have to break it to 200, 200, 20, 10,5 (this should be the output)". "REST API related few question". Throughout the interview process Interviewers very cool !