I applied through a staffing agency. The process took 1 week. I interviewed at G-Research (London, England) in Jun 2015
Interview
Given a 90 minute exam straight away on arrival. It was a mixture of maths, probability and computing topics. It was very tough and I had not prepared enough so I was shown the door as soon as I finished it. For those that pass, I believe it leads to several more face to face interviews that day.
Interview questions [1]
Question 1
Signed an NDA so cannot disclose the questions. There is a suggested reading list which is pretty comprehensive.
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.