I have cleared the OA and screeing for the SMT role at D.E Shaw , can someone help me with what dsa, lld, hld, os and dbms topics to prepare for?

OA 2 DSA questions (15/15, 13/15) - https://leetcode.com/discuss/post/7627217/de-shaw-smt-oa-by-anonymous_user-w6b9/

Screeing Round -
Project Discussion (most challanging thing about it)
1 DSA Question (DP question- max product subarray)
Python questions (decorators, generators, GIL, async programming)
LLD question (aggregate data from different data sources that have common data fields as well as additional fields, primary data source would be defined) (asked to write python code as well). Explained different patterns here.