Quantitative Researcher applicants have rated the interview process at Citadel Securities with 3.4 out of 5 (where 5 is the highest level of difficulty) and assessed their interview experience as 55% positive. To compare, the company-average is 53.9% positive. This is according to Glassdoor user ratings.
Candidates applying for Quantitative Researcher roles take an average of 19 days to get hired, when considering 42 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 Quantitative Researcher according to 42 Glassdoor interviews include:
Phone interview: 35%
One on one interview: 30%
Skills test: 23%
Personality test: 5%
Presentation: 3%
Other: 3%
IQ intelligence test: 3%
Here are the most commonly searched roles for interview reports -
I applied through a recruiter. I interviewed at Citadel Securities
Interview
Round one was a phone interview. Went through my resume and asked about past projects and quizzed me on machine learning models that were mentioned. Also asked somewhat basic questions on probability and statistics
Interview questions [1]
Question 1
In ridge regression what happens to the expected value of the estimate if you perturb your data matrix?
Long telephonic and video interview. Maths, probability questions and a small programming assignment. Moderate difficult interview level. Motivation/ interest to join cit sec. Started
on time and very efficient use of time
It was mostly about coding. I was first being asked to share my research experience followed by a Q&A, and then we moved on to a DP problem. Since we discussed my research for ~ 40 min, I didn't have time to finish testing my code.
I interviewed at Citadel Securities (New York, NY)
Interview
Internal matching process, then straight to a technical round. Technical Interview, some probability (brainteaser style, refresh conditional probability and Markov Chain) and linear regression, plus some coding puzzle (leetcode style medium)
Interview questions [1]
Question 1
Anything you know about linear regression and related follow ups