Meta Software Engineer interview questions

There were four interviews, two about engineering, one about architecture, one about career. The engineering interviews where what you would expect: The questions were geared to find out whether you understand time and space complexity. The hardest one was the architecture part, because it was not obvious to me what to prepare there. Facebook is such a huge company, doing architecture on Facebook scale is something that I think only Facebook or one of the other big companies can prepare you to do. The career one was kind of a pleasant chat.