I applied through a recruiter. The process took 1 day. I interviewed at DRW (Chicago, IL) in May 2022
Interview
Meeting the team and getting to know what they do. Some technical and critical thinking portions. In addition to the basic behavioral questions to see if you are a good fit for the company.
Interview questions [1]
Question 1
Tell me about a time something unexpected happened and how you resolved it.
I applied online. I interviewed at DRW (Montreal, QC) in Jan 2026
Interview
Online Coding Assessment. Aced it but they didnt contact me after. It was about 2 hours long but I took 1 hour. Got the rejection notification a couple days later.
Codility online assessment was the first round which was leetcode style. Then a technical interview and then a superday. Technical interview entailed multiple questions on various topics such as algorithms, data structures, os, networking, system design and more.
Interview questions [1]
Question 1
Data structures, Algorithms, Networking, OS, System design
I applied online. The process took 4 weeks. I interviewed at DRW (London, England) in Oct 2025
Interview
OA then first round interview in 45 minutes. The interviewer is friendly and helpful. They mostly ask about C++ knowledge and low-level details, rather than leetcode questions. Got rejected after that.
Interview questions [1]
Question 1
How is vector in C++ implemented? What is an iterator?