Citadel Interview Questions | Glassdoor

Citadel Interview Questions

Updated Nov 11, 2018
257 Interview Reviews

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  1. Featured Interview

     

    SE Interview

    Anonymous Employee
    Accepted Offer
    Positive Experience
    Average Interview

    Application

    I applied through college or university. The process took 1 day. I interviewed at Citadel.

    Interview

    4 people half day, each interviewer asked 2-3 technical questions followed by Q&A. The interviewer is very kind and the question depends on the interview. Difficulty level is average, most questions got hints from the interviewers. Do not expect one-pass solution. Instead, try to iterate it.

    Interview Questions


  2. Helpful (7)  

    Associate Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Difficult Interview

    Application

    I applied through college or university. The process took 1 day. I interviewed at Citadel in September 2017.

    Interview

    I applied through my university and received a 15 question quiz. The questions were difficult as I do not have a background in machine learning. I completed the quiz with 10/15 and did not receive an offer.

    Interview Questions

    • Interpret the Covariance matrix in the following setting:   Answer Question
  3.  

    Software Engineer Interview

    Anonymous Interview Candidate in Chicago, IL
    No Offer
    Neutral Experience
    Average Interview

    Application

    I applied online. The process took 5 days. I interviewed at Citadel (Chicago, IL) in December 2008.

    Interview

    Citadel seemed to have very specific skill and experience objectives. If you match, you're in luck. Otherwise, expect to be dismissed summarily. Interviewer was pleasant enough, but he seemed to lose interest as it became apparent that I was not into any of the niches he was looking for.

    Interview Questions


  4. Helpful (4)  

    Software Engineer Interview

    Anonymous Employee in Chicago, IL
    Accepted Offer
    Positive Experience
    Average Interview

    Application

    The process took a week. I interviewed at Citadel (Chicago, IL) in February 2011.

    Interview

    3 Technical Interviews. Basic CS concepts

    Interview Questions


  5.  

    Software Engineer Interview

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

    Application

    I applied through an employee referral. The process took 2 days. I interviewed at Citadel (Chicago, IL) in March 2011.

    Interview

    Had a phone interview with manager. Was then brought in for interviews with HR and 2 other technical people. Was also was supposed to meet manager but he was a no show, was never told why and the manager made no attempt to contact me after interview which I felt was very rude. Also, was pretty obvious my skills did not match the opening, I don't have scripting skills and I don't state that on my resume either. Felt it was a complete waste of my time and only found out that I didn't get it after following up many weeks later.

    Interview Questions


  6.  

    Software Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Positive Experience
    Difficult Interview

    Application

    The process took a week. I interviewed at Citadel.

    Interview

    Had an hour long phone interview. I was asked a very broad range of questions followed by a very difficult coding question. The questions included topics from computer programs, data structures, and computer architecture.

    Interview Questions


  7. Helpful (2)  

    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

  8. Helpful (1)  

    Software Engineer Interview

    Anonymous Interview Candidate
    No Offer
    Negative Experience
    Easy Interview

    Application

    I applied through college or university. The process took 2+ months. I interviewed at Citadel in June 2017.

    Interview

    Phone interview with Citadel in August 2017, had two non-technical in July. Never hear them back since after, even I did very good in the interview. I emailed the recruiter for feedback, no response.

    Interview Questions


  9. Helpful (10)  

    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


  10. Helpful (5)  

    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?   3 Answers

  11. Helpful (3)  

    Software Engineer Interview

    Anonymous Interview Candidate in Ann Arbor, MI
    No Offer
    Neutral Experience
    Difficult Interview

    Application

    I applied through college or university. The process took 2 weeks. I interviewed at Citadel (Ann Arbor, MI) in February 2015.

    Interview

    Applied thru career fair, get invitation to a on campus interview. Two 45 minutes tech interviews with two programmers and a 30 minute behavior interview with HR, a lot of questions both for stats and C++

    Interview Questions

    • convert string to integers,   1 Answer

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