First there was an OA. After about a month, I got invited to a superday with three 45-minute interviews: two were standard LeetCode-style coding questions, and one was more discussion-based, covering technical questions, questions about my experience, and more.
The following metrics were computed from 847 interview experiences for the Microsoft Software Engineer (Internship) role.
Microsoft's interview process for their Software Engineer (Internship) roles is fairly selective, failing a large portion of engineers who go through it.
Candidates reported having very good feelings for Microsoft's Software Engineer (Internship) interview process.