I applied online. I interviewed at Marshall Wace (London, England) in Nov 2025
Interview
Got to last round which involved a leetcode easy and a question testing my understanding of low level systems, so things like threads, memory, also number types.
Several interview stages before hand, first was an OA, the next few rounds involved a system design interview as well as a project demo
Interview questions [1]
Question 1
How would you efficiently find the sum of a file that had a billion numbers
Firstly we did resume deep dive, there are many cultural fit questions, in general they check if your vibe fit with the company's culture. That is all of my interview process, I don't think it's too hard
I applied online. The process took 2 weeks. I interviewed at Marshall Wace (New York, NY) in Jan 2025
Interview
There are three rounds of interviews. I made it to the third, which is project walkthrough. They are asking really in-depth questions (like why are you using this technology instead of that.