First round is virtual one-way interview. The best one-way interview I had ever done before; lots of opportunities to re-film and lots of time to prepare. Feels more like presentation and less like an interview. Took time though, probably 1.5-2 hours or even longer if you wanted to really prepare.
Second round was virtual interview with hiring manager. Very chill, basic interview questions. Know why you want to work at Regeneron specifically.
Interview questions [1]
Question 1
Tell us about a time you faced a challenge, how did you overcome it?
Very thorough and straightforward interview process. Tied a lot of school tasks to office tasks and how certain skills might overlap. Very kind interviewer as well, and he answered any questions I had.