Very bad interview. The interviewers seemed inexperienced and hostile right from the introduction. One of them didn't say anything throughout the whole thing. They were the type to get frustrated at any suggestion of an alternative solution, or any hint of a discussion. They wanted 1 sentence answers, probably because they were reading directly from the docs. After 15 minutes it was clear that any smart engineers have gone and the only ones left are the politicians. Ended up staying for the whole thing to be polite, worst decision I've ever made in an interview. I should have walked out. Over dozens of interviews in my career and this was the worst environment by far. Stay away.