I applied online. I interviewed at DRW in Jan 2020
Interview
Codility Test online. Two leetcode harder mediums based on arrays. Was auto rejected one week after submitting. No auto test cases like hacker rank had to write custom test cases.
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?
