Microsoft Software Development Engineer interview questions

I've applied to FTE positions for years on their public site, and never gotten anywhere. However, this time I had an internal recommendation. So I went from applying to in an interview loop within a week. No phone screen or pre-screen of any sort. The full interview process was comprised of 4 one hour interviews, with various Program Managers and Software Engineers. We did white board coding and talked a lot about my past work. They seemed to really appreciate that I have an UWA in the store already, with good reviews. After the interview, it took about a month to get my offer, however, this was also over the Christmas holiday season. Some delays where due to approvers being on PTO.

I was referred by a friend of mine currently working at Microsoft. I first did a 45 minute on-campus interview which consisted of one easy question plus some behaviorals. Unfortunately, Microsoft had fulfilled their hiring quota for the year, but a spot opened up in mid-December and I scheduled my on-site to be in January. The on-site consisted of five interviews about an hour long each, with some standard data structures/algorithm questions plus one system design question. The fifth interviewer also asked some behaviorals. The algorithm questions were probably around LeetCode Medium level.