Citadel Securities

How the process runsFirm careers page, read Nov 6, 2026

1. 1ApplicationTypicalOnline application with resume. Networking often decides who is read closely.
2. 2Online assessmentTypicalTimed math and probability tests, sometimes a coding test or a market making game.
3. 3Phone screenTypicalMental math, probability, and expected value questions over the phone or video.
4. 4First roundStated by Citadel SecuritiesPer the campus quantitative research guide shared with Citadel: a 45 to 60 minute remote interview on programming, problem solving, and behavioral questions.
5. 5Final roundStated by Citadel SecuritiesAn onsite round of usually three to five 60 minute interviews, technical and behavioral.
6. 6OfferStated by Citadel SecuritiesA final review for team fit, then an offer, about four to five weeks from start to finish.

Timing between stages shows on each program page once students report it. Firms change formats by year and office; the firm's own invite is the final word.

What it tends to weighStated, then typical

From Citadel Securities's careers site: Talk through your thinking out loud and ask for hints when stuck, says the quantitative research guide. Source

• Expected value and probability done quickly and correctly, with the reasoning said out loud.
• Making markets: quoting a width, updating on fills, and managing inventory.
• Collaboration and admitting mistakes quickly, which trading firms test directly.

behavioral

3 questions

technicals

14 questions

markets

3 questions

modeling

1 question