I applied in-person. I interviewed at WorldQuant (Taipei) in May 2020
Interview
You have pen & pencil & 10min to think about it. If you don't have answer, you can still keep talking about your idea. You can ask questions, they'll tell you whether they can answer this question.
Interview questions [1]
Question 1
You are on "0" index of a X line at the beginning. There is a black hole on 2N and another black hole on -N. At every position there's equal probability of going left or right. When you arrive one of the black hole, the process is end. What's the probability that you end up at the black hole at index 2N?
I applied online. The process took 2 months. I interviewed at WorldQuant in Nov 2025
Interview
Screening -> Online tests in math (many problems on a variety of topics) and programming (3 easy problems on data parsing and filling in gaps) -> 3 technical interviews (math, programming, and DS/finance), usually a few simple warm-up questions and 2 more difficult problems to test the depth of knowledge -> interviews with teams, talk about your experience, scientific work, then questions related to the specifics of the team you are applying for, you need to come up with hypotheses about the data -> rejection
Interview questions [1]
Question 1
The team interview included questions from the Green Book. The questions from other stages were unique but fairly straightforward, with the exception of one that asked about knowledge of mathematical induction.
I applied online. The process took 2 months. I interviewed at WorldQuant (Ho Chi Minh City)
Interview
There were 5 rounds in total. It began with a 30-question math assessment on HackerRank, followed by two face-to-face interviews focused on probability. Next, I completed a 24-hour take-home test and presented my findings. The process concluded with a final interview with a manager to assess cultural fit.
Very hard interview, I suggest you to study hard linear algebra statistics probability and more more more more because again it is hard very hard and I need to hit word qouata here
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