Quantitative Researcher – PhD Intern (US)

About the role

Join our team of quantitative researchers at Citadel Securities, a leading global market maker. You'll model the markets and bring trading strategies to life by applying sophisticated statistical techniques to some of the world's most complex financial datasets. As an intern, you’ll collaborate with senior team members during an 11-week program, network with peers, and dive deep into quantitative research.

Our signature internship runs June through August, with occasional flexibility for other times of the year.

Responsibilities

• Conceptualize valuation strategies, develop and improve mathematical models, and help translate algorithms into code.
• Backtest and implement trading models and signals in a live trading environment.
• Use unconventional data sources to drive innovation.
• Conduct research and statistical analysis to build and refine monetization systems for trading signals.

Requirements

• PhD degree in mathematics, statistics, physics, computer science, or another highly quantitative field.
• Strong knowledge of probability and statistics (e.g., machine learning, time-series analysis, pattern recognition, NLP).
• Prior experience working in a data-driven research environment.
• Experience translating mathematical models and algorithms into code (Python, R, or C++).
• Independent research experience.
• Ability to manage multiple tasks and thrive in a fast-paced team environment.
• Excellent analytical skills with strong attention to detail.
• Strong written and verbal communication skills.

Locations

Opportunities available in Miami and New York.

Pay

In accordance with applicable law, the base salary range for this role is $4,500 to $5,800 per week.