Citadel Securities Quantitative Trader intern 2028 application guide

For
2028 summer analysts
Sources
11 cited

This page covers the Citadel Securities Quantitative Trader internship (US) for summer 2028. Its one US trading form also lists the trading roles at Citadel, the separate hedge fund. Check your resume below, then read when it opens, what the form asks and what follows.

A student at a desk in an empty campus math department lounge at dawn, a closed laptop beside a printed one-page resume, a mechanical pencil and a pad of scribbled sums, a wiped whiteboard behind.
For summer 2027, the US Quantitative Trader posting was online by Jul 6, 2026, and a timed math test has followed about a week after applying.

Key facts

  • When it opens: The US postings were online by Jul 16, 2025 (summer 2026) and by Jul 6, 2026 (summer 2027), so expect summer 2028 around early July 2027.9
  • One trading form: One application for the summer trading and quantitative research program. You pick one primary role from a list of all trading roles at Citadel Securities and Citadel, then any others you would be open to.1
  • Documents: A resume (.docx, .doc, .pdf or .txt, up to 10MB), an education history with your GPA and its scale, and short questions. The US form has no cover letter or transcript field.1
  • Offices and pay: New York and Miami, at $4,500 to $5,800 per week base, for an 11-week internship with two rotations on different teams.1,2
  • Next step: Most applicants get a timed online test on math, probability and statistics about a week after applying: 15 questions in 30 minutes in Aug 2024, and coding plus probability in Oct 2025. Some go straight to a first interview.4,5,6,7,9
  • Who it is for: A bachelor's degree in applied math, engineering, statistical modeling, calculus, computer science, physics or a related field, and the ability to turn models into code in Python, R or C++.1

Citadel Securities programs on the tracker

Live from the Intervyo tracker, so the dates update as Citadel Securities posts them.

2028 Summer Analyst Program
Opens Oct 5
Open
2028 Full-Time Analyst Program
Dates not announced yet
Get an email the day Citadel Securities opens

The posting is one application for trading and quantitative research, and Citadel Securities prefers to interview for one role at a time. Choose your primary role on the form with care: the role question asks for one first choice before any others.1,3

Check your resume before you apply

Quantitative Trader Intern at Citadel Securities

Check your resume

Read against the Quantitative Trader Intern role at Citadel Securities, Trading and Research, the way the first screen reads it.

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What the Citadel Securities online application looks like

  1. Find the posting

    The Quantitative Trader - Intern (US) (Trading and Research) posting is on the Citadel Securities careers site, for New York and Miami. For summer 2027 it was online by Jul 6, 2026, and for summer 2026 by Jul 16, 2025, with no closing date given. The internship runs 11 weeks.1,2,9

  2. Pick your trading role

    The form asks for the role that best fits your interests, from a list it calls exhaustive for trading: Citadel Securities Quantitative Trading, Citadel Securities Credit & Rates Rotational Trading, Citadel Fixed Income & Macro Trading and Citadel Equity Quantitative Research Quantitative Trading. A second question lets you add any others you would be open to.1

  3. Fill in the form

    Upload a resume, add your school, degree, major, GPA and GPA scale, then answer the short questions: preferred office, return offers from this summer, late-stage processes at other firms, sponsorship, internship timing (June to August, or off-cycle), family at either firm, coding languages you know, links to your work and your top two coding languages for interviews.1

  4. The math test

    Most applicants then take a timed online test, about a week after applying. In Aug 2022 it was 20 minutes of counting, probability and logic; in Aug 2024 one sitting was 15 questions in 30 minutes and another was timed with no camera; in Oct 2025 it mixed coding and probability questions. A summer 2027 applicant went straight to a first-round interview in Jul 2026.4,5,6,7,9

  5. Then the trader interviews

    Pass the test and the next step is a phone or video interview of about 45 minutes with a trader: probability, expected value, logic and your resume. Some processes have a second 45-minute round, then a superday.4,6,7,8,9

What the form asks

Personal information Required
Name, email, phone and your current or most recent employer.
Resume Required
One file: .docx, .doc, .pdf or .txt, up to 10MB.
Education history Required
School, degree, major, GPA and GPA scale, start and graduation dates.
Trading role Required
One primary role from the four trading roles across both firms, plus any others you are open to.
Short questions Required
Office, return offers, competing processes, sponsorship, internship timing, family at either firm.
Coding languages Required
Languages you know, and your top two for interviews.

Read from the live US Quantitative Trader form, which has no cover letter or transcript field. Check each field when you open it.1

Citadel Securities quant trader resume checklist

  • One page.
  • Education first while you are a student, with the same GPA and scale you enter on the form.
  • Math, statistics and computer science coursework where a reader sees it at once.
  • Math or programming competitions with your placing or score.
  • Projects with the method, the data and a result in numbers.
  • Python, C++ or R listed only if you can code in it live; the form asks for your top two interview languages.
  • Interests that show judgment under uncertainty, such as poker or strategy games, if they are real.
  • Links to your work (GitHub or a personal site) ready for the form.

What to put on it

The form reads your resume, education history and coding languages; the trader interviews then ask about your resume and expected value. For students the usual order is Education, then experience and leadership, then skills, activities and interests. The examples below are Intervyo rewrites of common resume lines, not questions from the form.1,6,11

  • Education: School, degree, major, graduation month and year, GPA with its scale, and relevant math or statistics coursework.
  • Experience and projects: Internships, research and data projects, with what you built and what it showed.
  • Competitions: Math, programming or trading competitions, with your placing.
  • Skills and interests: Python, C++ or R, and interests such as poker or strategy games that you can talk about.

Example questions and how to answer them

Project bullet"Rewrite this project line: "Built a trading bot in Python.""1,10
  1. 1Say what the model or strategy actually did.
  2. 2Name the method and the data: a regression, a simulation, tick data.
  3. 3Give a number for scale or result, and how you tested it.
  4. 4End with what you learned or changed.

Tip: The posting asks for skill in turning models into code in Python, R or C++. Use only work you can explain line by line to a trader.

Example answer, written by Intervyo (not a real candidate)

Built a Python mean-reversion strategy on 2 years of minute-level ETF data; tested 40 parameter sets out of sample, found the edge vanished after costs above 1 basis point, and rewrote the signal to trade only wide-spread periods.

Education line"Rewrite this education line: "MIT, Math, 3.8, 2029""1,10
  1. 1University and location on the first line.
  2. 2Degree and major written out, with the graduation month and year.
  3. 3GPA with its scale, as the form asks for both.
  4. 4A line of relevant coursework: probability, statistics, algorithms.

Tip: The form asks for your GPA and its scale in the education history, so give the same figure on the resume.

Example answer, written by Intervyo (not a real candidate)

Massachusetts Institute of Technology, Cambridge, MA Bachelor of Science in Mathematics, expected May 2029. GPA: 3.81/4.00 Relevant coursework: Probability, Statistics, Algorithms, Stochastic Processes

Competitions and activities"Rewrite this activity: "Member, Math Club.""10,11
  1. 1Lead with the competition or role, not the club.
  2. 2Give your placing or score.
  3. 3Add one line on what you ran or built, if anything.

Example answer, written by Intervyo (not a real candidate)

Putnam Competition: scored 32 (top 500 nationally); Math Club problem-set lead, writing weekly probability sets for 40 members.

From resume to interview"Walk me through your resume."6,3
  1. 1Open with school, major and year.
  2. 2Take 2 or 3 entries, one sentence each, choosing the most quantitative.
  3. 3Say why each step pushed you toward trading.
  4. 4Close on why this role at Citadel Securities.

Tip: The phone interview with a trader has opened with resume questions before the expected value problems. Prepare a short version of every line.

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How long to hear back after the online application

The test link has come within a week of applying, and some processes took up to a month to reply. Citadel Securities asks you to tell it about competing offers so it can try to meet your deadlines.4,5,6,3

  1. Aug 2022 (summer 2023)

    Quant trader intern, New York

    An online assessment within a week of applying, then a 45-minute technical phone screen with a trader.4

  2. Aug 2024 (summer 2025)

    Quant trader intern, New York

    Applied through a referral and got the math test a week later: 15 questions in 30 minutes. A phone interview with a trader followed.5

  3. Aug 2024 (summer 2025)

    Quant trading intern, New York

    Heard back within a month with a timed math and statistics test, then a phone call with a trader.6

  4. Oct 2025 (summer 2026)

    Quant trader intern, New York

    A test with coding and probability, two 45-minute interviews, then an in-person superday, all in under a month.7

  5. Aug 2026 (summer 2027)

    Student, trading, New York

    A recruiter-led process: a market-making question built on a Fermi estimate, then a second round on game theory and quoting spread and size.8

The firm's campus interview guide says interviews run Monday to Friday in business hours, and that it tries to speed things up if you have a competing deadline.3

Best guessExpect the test link within about a week of applying in July or August. If two weeks pass with nothing, check your email filters before you assume a rejection.

What happens after the online application

  1. Online applicationYou are here

    This page. One shared trading form, with a resume, education history and short questions.1

  2. Online math test

    Usually a timed test on math, probability and statistics, about a week after applying; coding appeared in Oct 2025.4,5,6,7,9

  3. Trader interviews (1 or 2)

    Phone or video interviews of about 45 minutes with a trader: probability, expected value, market making and your resume.4,6,7,8

  4. Superday

    An in-person superday weighted toward market making, on a solid base of math and statistics.7

  5. Offer

    A decision about a week after the final round in late 2025, then two summer rotations ahead of full-time placement.9,1

2028 summer analyst status

For summer 2027 the US posting was online by Jul 6, 2026, and for summer 2026 by Jul 16, 2025, so expect summer 2028 around early July 2027. Have your resume ready before then.9

FAQ

When does the Citadel Securities 2028 quant trader internship open?

Going by the last two cycles, around early July 2027: the US postings were online by Jul 16, 2025 for summer 2026 and by Jul 6, 2026 for summer 2027. The posting gives no closing date, and first-round interviews for summer 2027 ran from mid-July to the end of September 2026.9

Is the Citadel and Citadel Securities trading application the same form?

Mostly. The Quantitative Trader form asks you to choose one role from a list it calls exhaustive for trading, covering Citadel Securities Quantitative Trading, Citadel Securities Credit & Rates, Citadel Fixed Income & Macro and Citadel Equity Quantitative Research quant trading, then any others you would be open to. Citadel also posts its Fixed Income & Macro internship on its own.1,9

Does Citadel Securities ask for a cover letter?

The US Quantitative Trader form has no cover letter or transcript field. It asks for a resume, your education history with GPA and scale, short questions and links to your work, so put your effort into the resume.1

What happens after you apply?

Most applicants get a timed online test on math, probability and statistics about a week later: 15 questions in 30 minutes in Aug 2024, and a mix of coding and probability in Oct 2025. Then one or two 45-minute interviews with traders, then a superday.4,5,7,9

What GPA does Citadel Securities want?

The posting names no minimum GPA. The form asks for your GPA and its scale, and the posting asks for a quantitative degree and the skill to turn models into code. Give your cumulative GPA, and put strong math coursework and competitions near the top.1,10

Can you apply to trading and quant research at once?

The Quantitative Trader posting is one application for the summer trading and quantitative research program. Citadel Securities prefers to interview for one role at a time, but shares your resume with other teams if it sees a good match.1,3

Online application at other firms

Sources

Firm pages first, then dated candidate reports. Last checked Nov 4, 2026.

  1. 1Citadel Securities: Quantitative Trader - Intern (US) (Trading and Research), posting and application form
  2. 2Citadel Securities: Internships - Make an Impact
  3. 3Citadel Securities: Our Campus Quantitative Research Interview Process (Nov 2024)
  4. 4Candidate report on a public forum: Quant Trader Internship interview, New York (Aug 2022)
  5. 5Candidate report on a public forum: Quant Trader Intern interview, New York (Aug 2024)
  6. 6Candidate report on a public forum: Quant Trading Intern interview, New York (Aug 2024)
  7. 7Candidate report on a public forum: Quant Trader Intern interview, New York (Oct 2025)
  8. 8Candidate report on a public forum: Trading interview, New York (Aug 2026)
  9. 9Trading Interview: Citadel Securities Internship 2027: Pay, Roles And Interview Process · prep site
  10. 10OpenQuant: Writing the Perfect Quant Resume · prep site
  11. 11Mergers & Inquisitions: The Perfect Sales & Trading Resume Template? · prep site

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