I applied for the position online. A recruiter reached out and scheduled two back to back phone interviews. The first one was behavioral and included a code reading portion, and the second one was a technical coding question.

Short essay responses included with resume and then 2 back to back 45 minute interviews, both technical questions. Nothing very complicated (certainly not the level you get for the real software engineering internship) but they're still looking for smart people who absolutely know their stuff. It's important to review your computer science courses and understand fundamentals, but don't expect some crazy question from Leetcode to pop up.