I applied through university. The process took 1 week. I interviewed at DRW (Madison, WI) in Oct 2016
Interview
I applied through the university job postings and was contacted to do a coding test through Codility. They contacted me on a Tuesday and I had until the the EOD Saturday to complete the 2hr test. They got back to me the next Monday to say they were moving on to other candidates. Codility test are very math focused and many complain it doesn't accurately test your coding abilities.
Interview questions [3]
Question 1
Given an integer if that int was represented in binary how many bits would be set to '1'? (no time or space complexity requirements only accuracy)
Leetcode like question with follow ups on c++ concepts like virtual memory, address space, etc. Coding everything from scratch and there’re also weird concepts like function pointer. Question was not too hard but need to remember concepts and syntax clearly
HR, take home coding tests, behavioral, technical discussion, live codings for several rounds.
The live codings are a bit hard. Some are about problems solving, some are about data structure and algorithms.
I applied online. The process took 4 weeks. I interviewed at DRW (London, England) in Aug 2025
Interview
Did a set of interviews in summer 25. The interviews were not that difficult, mostly problems you'll face in real life. The interviewers themselves were mostly nice, although a couple seemed like they didn't care, not very involved in the process.
Got rejected due to 2 sections having "mixed signals": one generic "not deep enough", the other didn't like the approach to solving a problem (it was solved on time anyway). Funnily enough, got praised for using the same approach in other section. Mixed signals also came from the people who wouldn't have been on the same team.
It would be nice if interviewers were aligned on evaluation criteria, otherwise it becomes a guessing game.
Other that that it was a positive experience and the rejection was delivered by phone, not a generic email.
Interview questions [1]
Question 1
Some very down-to-earth problem on coding section, pleasantly surprised.
Unfamiliar algo problem, more like medium-hard.
And a data modelling exercise.