Citadel Interview Questions | Glassdoor

Citadel Interview Questions

Updated Dec 1, 2017
207 Interview Reviews

Experience

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Getting an Interview

Getting an Interview
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Candidate Interview Reviews

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  1. Helpful (3)  

    Software Engineer Interview

    Anonymous Interview Candidate in Chicago, IL
    No Offer
    Negative Experience
    Difficult Interview

    Application

    The process took 6 weeks. I interviewed at Citadel (Chicago, IL).

    Interview

    Having interviewed with at least two dozen different companies in software and finance ranging from series A startups to the biggest names in the industry, I can safely say Citadel has the most bizarre, pointless, waste-of-time interview process I've ever gone through. Indeed, if I had known from the inception it would take an astounding four weeks to schedule a first round interview due to a complete lack of communication on their end, I would never have even gone through the process, to say nothing of the following rounds. Citadel demonstrates no interest whatsoever in their candidates, especially compared to smaller firms like HRT or Jane Street in their own industry, and pretty much any firm in the software industry. Interview literally anywhere else.

    Interview Questions


  2.  

    Software Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Difficult Interview

    Application

    I applied through college or university. The process took a week. I interviewed at Citadel.

    Interview

    One round of online assessment before I was rejected. I got the online assessment a few days after I applied. It had to be completed within 2 weeks. The assessment consisted of 15 math, statistics, computer science and general IQ questions.

    Interview Questions

    • You have a worker and a gold bar. The worker will work for you for 15 days. He must have x/15 of the gold bar after the xth day of work. What is the minimum number of cuts of the gold bar you need to make to pay the worker?   1 Answer
  3. Helpful (2)  

    SDE1 Interview

    Anonymous Interview Candidate in New York, NY
    No Offer
    Positive Experience
    Difficult Interview

    Application

    I applied online. The process took 1 day. I interviewed at Citadel (New York, NY) in November 2017.

    Interview

    When I submit my application, the email sent me immediately. You need to complete it in 48 hours. Online Assessment, total 15 questions. You need to complete in 1 hours. No programming questions.

    Interview Questions


  4.  

    Quantitative Analyst Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Average Interview

    Interview

    online assessment after online application. Online assessment is 15 multiple choice questions, covering stats, finance, finance math, and programming. I got 10/15. then received the phone screen about two weeks after the test. The phone screen took about half an hour.

    Interview Questions

    • briefly talked about my resume, then I was asked about some questions related to my previous research. In the end, I was asked to write a code to calculated variance using python.   Answer Question

  5.  

    Quantitative Researcher Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience

    Application

    The process took 4 weeks. I interviewed at Citadel.

    Interview

    1 phone interview and 1 onsite. ~4 people interviewed from different groups. First 2 were somewhat junior and asked a lot of brain teasers. The last 2 were senior and focused more on my resume.

    Interview Questions


  6. Helpful (1)  

    Quant Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Difficult Interview

    Interview

    Automated online test when you submit your resume, then phone screen, maybe technical phone screen, before on-site round in Chicago. The stuff they want from you is completely different from the trading recruitment process (which I did 2 years ago) - here they want to see both coding and modeling competence. They do differentiate between data science types and quant researchers.

    Interview Questions

    • Very difficult statistical questions on regression and related topics --- not sure how to prepare, it's really hard!   Answer Question

  7.  

    Quantitative Researcher Interview

    Anonymous Interview Candidate
    No Offer
    Neutral Experience
    Difficult Interview

    Application

    I applied through college or university. I interviewed at Citadel.

    Interview

    I applied through college website, got a phone interview. They asked 3 questions, one about programming and two about probability theory. I eventually got the correct answers to all of them, but said several wrong things along way, got rejection email an hour after the interview.

    Interview Questions

  8.  

    Quantitative Researcher Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Average Interview

    Application

    I applied online. The process took 3 weeks. I interviewed at Citadel.

    Interview

    Initial phone screen and then two technical phone interviews. Interviewers were really nice, started off by asking about my research and coursework, then moved on to technical questions. Very friendly, but I didn't get invited to an on site interview.

    Interview Questions

    • Some basic statistics and probability questions, a couple general questions about machine learning methods.   Answer Question

  9.  

    Trader Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Difficult Interview

    Application

    I applied online. I interviewed at Citadel.

    Interview

    Online Assessment after submitting online application. The questions are multiple choices and are in general very difficult. I answered half correctly, so no offer for me. Will again next year.

    Interview Questions


  10. Helpful (1)  

    Software Engineer Interview

    Anonymous Employee
    Accepted Offer
    Positive Experience
    Average Interview

    Application

    I applied through college or university. The process took a week. I interviewed at Citadel in October 2017.

    Interview

    Applied from university, received a quiz on stats and ML, only got 9/15, got an interview on campus.
    The interviewer was one of the alumni. We went through the resume and did some technical questions. The interviewer was very friendly and helped me a lot when I was stuck. Get an onsite interview after 1 week.

    Interview Questions


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