The interview process was similar to what you can read here on glassdoor. However, what I want to add is that your background and experience has NOTHING to do with what you will be tested for. The questions are a mixture of academic (mostly not useful) or extreme use-case that you will hardly ever have (and probably never did in the past). I myself asked the interviewer if "the example" ever happened to him and he shily said no and in another case "just once", than changed subject. They won't ask almost nothing regarding your past experience on the technical side. About the Leadership principles, what I want to say is that they are similar to what you may find online but be careful because you are "penalized" for reusing the same examples between interviewers. So try to use different example as much as possible. In general the whole interview was a bad experience and the worse one I had until now in my career.