You must have a PhD in a quantitative field with strong knowledge of probability, statistics, and data analysis. Experience in coding, independent research, and exceptional analytical skills are a must. Ability to thrive in a fast-paced team environment is essential.

You will conceptualize valuation strategies, develop models, back test trading signals, use unconventional data sources, and conduct statistical analysis for trading signals.

Research & Development

United States

Miami

Large

Citadel Securities is the next-generation capital markets firm. Our work is powered by the deepest integration of financial, mathematical and engineering expertise. Combining deep trading acumen with cutting-edge analytics and technology, we at Citadel Securities deliver critical liquidity to the world’s most important financial institutions—while helping shape the global markets of tomorrow.


Finance

Citadel Securities

Job DescriptionAt Citadel Securities, our mission is to be the most successful investment team in the world. Quantitative Researchers play a key role in this mission by developing next-generation models and trading approaches for a range of investment strategies. You’ll get to challenge the impossible in quantitative research by applying sophisticated and complex statistical techniques to financial markets, some of the most complex data sets in the world.As an intern, you’ll get to challenge the impossible in research 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.Your Objectives<ul><li>Conceptualize valuation strategies, develop and continuously improve upon mathematical models, and help translate algorithms into code</li><li>Back test and implement trading models and signals in a live trading environment</li><li>Use unconventional data sources to drive innovation</li><li>Conduct research and statistical analysis to build and refine monetization systems for trading signals</li></ul>Your Skills &amp; Talents<ul><li>PhD degree in mathematics, statistics, physics, computer science, or another highly quantitative field</li><li>Strong knowledge of probability and statistics (e.g., machine learning, time-series analysis, pattern recognition, NLP)</li><li>Prior experience working in a data driven research environment</li><li>Experience with translating mathematical models and algorithms into code (Python, R or C++)</li><li>Independent research experience</li><li>Ability to manage multiple tasks and thrive in a fast-paced team environment</li><li>Excellent analytical skills, with strong attention to detail</li><li>Strong written and verbal communication skills</li></ul>Opportunities available in Miami, New&nbsp;York.In accordance with New&nbsp;York&nbsp;City’s Pay Transparency Law, the base&nbsp;salary&nbsp;range for this role is $3,850 to $5,300 per week. Base&nbsp;salary&nbsp;does not include other forms of compensation or benefits.About Citadel SecuritiesCitadel 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.

Job DescriptionAt Citadel Securities, our mission is to be the most successful investment team in the world. Quantitative Researchers play a key role in this mission by developing next-generation models and trading approaches for a range of investment strategies. You’ll get to challenge the impossible in quantitative research by applying sophisticated and complex statistical techniques to financial markets, some of the most complex data sets in the world.As an intern, you’ll get to challenge the impossible in research 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.Your ObjectivesConceptualize valuation strategies, develop and continuously improve upon mathematical models, and help translate algorithms into codeBack test and implement trading models and signals in a live trading environmentUse unconventional data sources to drive innovationConduct research and statistical analysis to build and refine monetization systems for trading signalsYour Skills & TalentsPhD degree in mathematics, statistics, physics, computer science, or another highly quantitative fieldStrong knowledge of probability and statistics (e.g., machine learning, time-series analysis, pattern recognition, NLP)Prior experience working in a data driven research environmentExperience with translating mathematical models and algorithms into code (Python, R or C++)Independent research experienceAbility to manage multiple tasks and thrive in a fast-paced team environmentExcellent analytical skills, with strong attention to detailStrong written and verbal communication skillsOpportunities available in Miami, New York.In accordance with New York City’s Pay Transparency Law, the base salary range for this role is $3,850 to $5,300 per week. Base salary does not include other forms of compensation or benefits.About Citadel SecuritiesCitadel 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.

Quantitative Researcher – 2025 PhD Intern

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Citadel Securities

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