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Citadel Investment Financial Technology Associate Interview Questions & Reviews

Getting the Interview  9 Interviews

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Interview Experience  8 Ratings

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9 interview experiences Back to all interview questions
Updated Feb 23, 2013
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Financial Technology Associate at Citadel Investment

Accepted Offer – Interviewed in Chicago, IL Feb 2013 – Reviewed Feb 23, 2013

Interview Details – Two 30 minute rounds on campus and three 1 hour sessions on-site if selected. It starts off with brain teasers and some general conversations. Can get pretty technical (C++ knowledge mostly) in the middle and they may discuss some things in the field of finance and will really appreciate if you show interest in Finance. Most important things going in should be to be comfortable coding in C++ and demonstrating an interest in finance which you should have if you want to work here

Interview Question – Why do you want to work in this financial institution versus working in a pure software company like Microsoft, etc?   View Answer

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Financial Technology Associate at Citadel Investment

No Offer – Reviewed Feb 13, 2013

Interview Details – The interviewers asked a lot of fundamental computer science questions that I could not answer...

Interview Question – What is a hash map?   Answer Question

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Financial Technology Associate at Citadel Investment

No Offer – Interviewed in Chicago, IL Sep 2010 – Reviewed Mar 31, 2011

Interview Details – Initial interviews were behavioral and technical based and I had a following superday in Chicago. The interviews were challenging and were generally questions that tested your ability to reason and understand rather than recite rote memorization.

Work culture seemed very work hard/play hard, tons of very bright people.

Interview Questions

  • Talk about the virtues of a particular trading system, points of failure and possible improvements.   Answer Question
  • Various algorithmic questions, some implementation on whiteboard, eg. fast algorithm for matrix multiplication.   Answer Question

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Financial Technology Associate at Citadel Investment

No Offer – Interviewed in Chicago, IL Feb 2011 – Reviewed Feb 23, 2011

Interview Details – Got the on-campus interview through the university career service. Two back to back interviews of 30 minutes. One is behavioral and one is technical. Feeling not good about the behavioral one but the guy in the technical one is nice.
The behavioral interviewer seems somehow cold. Questions include: your strong point and weak point? how do you improve your weak point? how much do you know about the company? introduce your achievements to me? Whether you can program? If yes in what language?

Interview Questions

  • scope of variables in C++, difference between pass by value/reference/pointer   Answer Question
  • Efficient way to compute p^q, where q is an integer   View Answer

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Financial Technology Associate at Citadel Investment

No Offer – Interviewed in Chicago, IL Jan 2011 – Reviewed Feb 3, 2011

Interview Details – Result is managed by HR and is very obscure how they choose interns....not good.Don't be surprised if you get rejected despite a good interview, had a bitter experience. Work environment is too serious and people seem to work way more than in regular software firms.

Interview Questions

  • What is a futex ? How can you parse a sentence in English (compilers) ?   Answer Question
  • Some basic logic puzzles, probability. General programming questions   Answer Question

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Financial Technology associate Program at Citadel Investment

No Offer – Interviewed in Chicago, IL Oct 2009 – Reviewed Oct 14, 2009

Interview Details – Citadel recruited for the FTAP program at my University. The first round interview consisted of a 30 minute behavioural and a 30 minute technical with a HR representative and then a FTAP alumni. The technical interview was fairly easy - mostly talked about your background in various fields and probed deeply in topics that the interviewer was interested in.

I was invited to a final round in Chicago. That was three technical interviews of 45 minutes each with a 15 minute behavioural with each interviewer. Similar format as the first round.

Interview Question – Write code to multiply two matrices.   Answer Question

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Financial Technology associate Program at Citadel Investment

No Offer – Interviewed in Oct 2008 – Reviewed Oct 7, 2009

Interview Details – I was contacted by Citadel after a career fair. First I was invited to an info session which was very helpful.
An invitation from Citadel was then sent to me to sign up for an interview. The night before the interview I was invited to meet with the people who were going to interview us and got to ask them different questions about the position as well as hearing stories about a day in their life. The next day I had two interviews back to back: one was a technical interview by a current employ in this position and the other was a personality interview by a HR.

Interview Question – Describe the difference between the academic world and the business world?   Answer Question

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Financial Technology Summer Associate at Citadel Investment

No Offer – Interviewed in Jan 2010 – Reviewed Feb 17, 2010

Interview Details – 30 min behavorial interview
30 min technical interview

Interview Question – How would you implement the game Bejewelled? (What data structures would you use? What algorithm would you use to detect when to clear blocks? etc.)   Answer Question

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Financial Technology Associate at Citadel Investment

No Offer – Interviewed in Feb 2010 – Reviewed Feb 9, 2010

Interview Details – I applied for an internship through my university career services and was invited for an on-campus interview.

The interview was a 30 minute technical interview.

The interviewer started with questions about my project work. Further, asked questions on languages like C++/Java whatever you say you are comfortable with.

Made me write a regular expression, solve a hexadecimal to decimal conversion, write a class that prints something on creating an object.

The tougher part was basically in-depth test about data structures and their complexities.

Interview Question – What happens if a hash map has two collisions ? What is the complexity of fetching the key? Also, the complexity for fetching the value ?   View Answer

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