2026-2027 Quantitative Trading Internship

At Citadel Securities, our traders make complex risk decisions and execute trades at scale, in real-time. As a markets and trading expert, you’ll use predictive analytics and advanced technology to monitor risk, respond to market signals and execute trading strategies across Options, ETFs, Equities, Fixed Income, Commodities and Currencies.

As an intern, you’ll get to challenge the impossible in markets and trading through an 11 week program that will allow you to collaborate and connect with senior team members. In addition, you’ll get the opportunity to network and socialize with peers throughout the internship.

• Develop in-depth knowledge of a financial market
• Apply advanced statistical techniques to trading
• Constantly learn and adapt trading approaches
• Innovate by using one of the industry’s most powerful trading platforms

• Bachelor’s, master’s or PhD in applied math, engineering, statistical modeling, calculus, computer science, physics or related disciplines required
• Ability to think about the world systematically and quantitatively, as well as the ability to deal with uncertainty in a rigorous and statistical approach
• Interest in applying technology and/or quantitative skills to solve complex trading problems
• Passion for the markets and a desire to seize investment opportunities
• Experience with programming, scripting, and/or statistical software strongly preferred

Opportunities available in Sydney.

Citadel Securities is the next-generation capital markets firm and a leading global market maker. We provide institutional and retail investors with the liquidity they need to trade a broad array of equity and fixed income products in any market condition. The brightest minds in finance, science and technology use powerful, advanced analytics to solve the market’s most critical challenges, turning big ideas into real-world outcomes.