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Citadel interview preparation

Citadel

www.citadel.com

Walk into Citadel prepared.
Know what it looks for.

Global financial institution encompassing a hedge fund and market-making business with technology-driven trading strategies.

Start a mock interviewListen to free episodes

What we know about Citadel

Your preparation, in four steps

Take them in order, or start where you need help most.

  1. Step 1Learn how Citadel hiresHear its values, its interview process and the questions it asks.Listen
  2. Step 2Build your storiesTurn your experience into STAR answers shaped around Citadel.Open Story Bank
  3. Step 3Tailor your resumeWrite a resume for your target role at Citadel, from your own experience.Open Resume Studio
  4. Step 4Practice out loudRun a mock interview with an AI interviewer. Get a written report on what to fix.Start practicing

What Citadel's rounds look like

System design at Citadel

Length
60 minutes
Tracks
Systems & Low-Latency Design, System Design Round

Known to ask

  • Design a high-frequency trading system
  • Design a market data feed system that ingests and processes stock prices, option prices and other market data in real time
  • Design a real-time market data distribution system
  • Design a low-latency trading system (single-region exchange/ATS-like platform)
  • Design a metrics monitoring system
  • Design a notification system
and 6 more

From Citadel's hiring pages and candidate reports, read 2026-10-27.