I applied online. The process took 3 weeks. I interviewed at Citadel Securities (Zürich) in Jan 2024
Interview
Invitation, short social chat, tell us about your research (why you have pursued it, what goals, what data science components, what methods), logic question (standard math / stat problem), programming (in python or language of choice, standard programming problem), final questions,
Interview questions [1]
Question 1
Tell us about your previous data science experiences?
I interviewed at Citadel Securities (London, England)
Interview
Dynamic programming question with some expectation computation. It also involved cv based questions with emphasis on technical topics on the projects I did. It was okay on difficulty, I could have passed it.
I interviewed at Citadel Securities (New York, NY)
Interview
resume submit, then 45 min call with interviewer. interview was really nice, calm, and provided guided hints. first 30 minutes were technical on math and coding and next 15 min were behaviorual.
I interviewed at Citadel Securities (London, England)
Interview
Long discussion about stats concepts like hypo testing, regression etc. Multiple standard brainteasers, can be found online. Interviewers are helpful, it is a genuine discussion rather than a one way solving interview
Interview questions [1]
Question 1
Long discussion about stats concepts like hypo testing, regression etc. Multiple standard brainteasers, can be found online.
Quant Research Intern applicants have rated the interview process at Citadel Securities with 3.2 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 50% positive. To compare, the company-average is 53.9% positive. This is according to Glassdoor user ratings.
Candidates applying for Quant Research Intern roles take an average of 18 days to get hired, when considering 6 user submitted interviews for this role. To compare, the hiring process at Citadel Securities overall takes an average of 25 days.
Common stages of the interview process at Citadel Securities as a Quant Research Intern according to 6 Glassdoor interviews include:
Phone interview: 30%
One on one interview: 30%
Presentation: 10%
Background check: 10%
Skills test: 10%
IQ intelligence test: 10%
Here are the most commonly searched roles for interview reports -