D. E. Shaw

The first round was an OA. The second round consisted of three interviews back to back to back. The first was on CS fundamentals, where the interviewer asked me about DP and Sorting Algorithms. The next round focused on Math. Finally, I was given a L

I was interviewed by an engineer who asked about prior technical projects I had worked on. We then worked through an algorithm implementation. I did not make it past the initial interview.

Difficult interview. I was given a 48-hour case study where I chose to model AI work at an insurance company, and I unfortunately did not pass. The initial screen was okay; they just asked about my profile.