I recently had the opportunity to interview with D. E. Shaw for the Quality and Test Engineer (QTE) position.
Interview Highlights:

1)intro
2)Project Discussion

Core C++ Concepts:
Deep dive into maps vs unordered maps, time complexities, memory management, and multithreading basics.

DSA problems were based on the following concept
Dynamic Programming:
https://leetcode.com/problems/max-points-on-a-line
https://leetcode.com/problems/scramble-string?envType=problem-list-v2&envId=dynamic-programming

String Problems:
https://leetcode.com/problems/trapping-rain-water
https://leetcode.com/problems/longest-palindromic-substring