First round was a phone interview with an AWS Security Engineer. It lasted an hour and covered network protocols, TLS/UDP, DNS etc and also threat modelling scenario. I found out the next day that I had moved onto the next round (the Amazon loop) this was with 5 Amazon employees across software engineering and security teams, 1 was the hiring manager. Each round focused on behavioural questions (Amazon Leadership Principles) and technical questions. The technical questions covered usual network security questions, code review and threat modelling. I felt a bit out of depth in some areas, but 4/5 people I interviewed with were patient and taught me something new which I appreciated. There was 1 engineer that kept interrupting me and it felt more like an interrogation than an interview at one point but maybe I just wasn’t staying inline with what they were asking. Overall, even though I wasn’t successful I got some great advice and guidance from the interviewers. It’s a long day of interviewing (5 hours) so it’s good to get something out of it at least.