I applied through a recruiter. The process took 1 day. I interviewed at G-Research (City of London, England) in Jan 2012
Interview
The First round is a paper-and-pen skill test, which covers probability theory, statistics, portfolio theory, and computational skills. Every question starts with every basic ones, and gets harder towards the end. The time is 90 minutes, a bit tight if you spend too much time on the difficult questions. The best strategy might be tackling the easy ones first and come back for the difficult ones.
The interview process was quite fast, I did an initial technical exam on math and coding, then had an another technical interview where they asked math, machine learning and programming question.
Interview questions [1]
Question 1
They asked a version of the gambler's ruin problem.
I applied online. The process took 5 weeks. I interviewed at G-Research (London, England) in May 2025
Interview
First part was a test evaluating math, Stats, machine learning and financial knowledge. Next part was video interview with some employees but rejected soon after. The next part would be an extension on the first part and I believe final rounds involves a day in the office.
I was asked a Brain teaser type of question. It was quiet difficult but manageable. Great atmosphere. The interviewer was really friendly and nice. I really really enjoyed the interview process would recommend applying.
