Design a file system.

"Question was multi-stage coding challenge where each completed level unlocked the next set of requirements. Overall, the tasks were fairly straightforward. However, the exercise was quite time-consuming, and I ended up using the full allotted time without being able to complete every level. One challenge with the format was that the stages had to be completed sequentially, so there was no option to skip a level and move on to another problem. This made time management especially important."

"Overall, the interview process was pretty straightforward and well organized. The interviewers were friendly and gave me a good opportunity to talk through my experience and approach to problems. The process was a little lengthy, but overall it was a positive experience."

"I interviewed for an SC2 software engineer role on Microsoft's Experience + Devices team, focusing on Copilot integration into the Microsoft 365 suite. After I applied, I got a standard engineer screen that was pretty easy, then they moved quickly into a 4-round final loop over 2 days, which felt like they were on a hiring drive. The weird part was that every final-round interviewer was principal-level, and almost every round, even the system design and hiring manager rounds, was still basically coding. The hardest round by far was a file system prompt where I expected a standard system design, but they wanted a low-level design coded up with classes and multiple use cases in 45 minutes. I still have no official outcome because the recruiter ghosted me for a month after the loop, so honestly, this ended up being the worst interview experience I have had with any company."