Build scalable software, data pipelines, analytical infrastructure, and research tools for investment teams. Translate quantitative models and research ideas into reliable production systems, collaborate with researchers, portfolio managers, traders, and engineers, and solve technically challenging data-intensive problems. The role requires strong Python and software engineering fundamentals, experience with complex datasets, communication skills, adaptability, and interest in financial markets.
Job Description
Quantitative Developers combine strong software engineering skills with quantitative intuition and a deep interest in financial markets to build the tools, platforms, and systems that support investment research and decision-making. Working side by side with quantitative researchers, portfolio managers, traders, and other engineers, Quantitative Developers turn complex analytical ideas into scalable research and trading systems that accelerate the path from idea to production.
Key Responsibilities:
Qualifications:
Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel, please share your details and we will contact you if there is a vacancy available.
To be eligible for UK postings, you must have or be able to obtain UK work authorization.
For our privacy policy, go to https://www.citadel.com/privacy.
In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
In accordance with applicable law, the base salary range for this role is $200,000 to $300,000.
In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
About Citadel
Citadel is one of the world's leading alternative investment managers. We manage capital on behalf of many of the world's preeminent private, public and nonprofit institutions. We seek the highest and best use of investor capital in order to deliver market leading results and contribute to broader economic growth. For over 30 years, Citadel has cultivated a culture of learning and collaboration among some of the most talented and accomplished investment professionals, researchers and engineers in the world. Our colleagues are empowered to test their ideas and develop commercial solutions that accelerate their growth and drive real impact.
Quantitative Developers combine strong software engineering skills with quantitative intuition and a deep interest in financial markets to build the tools, platforms, and systems that support investment research and decision-making. Working side by side with quantitative researchers, portfolio managers, traders, and other engineers, Quantitative Developers turn complex analytical ideas into scalable research and trading systems that accelerate the path from idea to production.
Key Responsibilities:
- Partner directly with quantitative researchers, portfolio managers, traders, and engineers to understand investment and research workflows
- Translate research ideas and quantitative models into reliable, maintainable production software
- Build and improve high-performance data pipelines and analytical infrastructure used to process large and complex datasets
- Develop custom tools and prototypes that allow investment teams to rapidly test ideas and extract insights from data
- Solve technically challenging problems in a fast-moving environment where technology has direct business impact
- Learn from industry leaders, distinguished engineers, quantitative researchers, and investment professionals
Qualifications:
- Minimum of a Bachelor's degree in Computer Science, Engineering, Mathematics, Statistics, Physics, or a related STEM discipline, or equivalent experience
- Exceptional Python programming skills and a strong understanding of computer science fundamentals, data structures, algorithms, and software design
- Experience working with large or complex datasets and developing data-intensive applications
- Excellent written and verbal communication skills and an ability to explain technical concepts and results to a range of stakeholders
- Strong entrepreneurial spirit, ownership mindset, and the ability to adapt to changing requirements and technologies
- Ability to manage multiple priorities in a demanding and dynamic environment
- Intellectual curiosity and an interest in learning about financial markets
Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel, please share your details and we will contact you if there is a vacancy available.
To be eligible for UK postings, you must have or be able to obtain UK work authorization.
For our privacy policy, go to https://www.citadel.com/privacy.
In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
In accordance with applicable law, the base salary range for this role is $200,000 to $300,000.
In addition, the employee who fills this role will be eligible to participate in a discretionary incentive compensation program, as well as a wide array of benefit programs, such as medical and life insurance, retirement and tax-free savings plans, and access to other healthcare programs.
About Citadel
Citadel is one of the world's leading alternative investment managers. We manage capital on behalf of many of the world's preeminent private, public and nonprofit institutions. We seek the highest and best use of investor capital in order to deliver market leading results and contribute to broader economic growth. For over 30 years, Citadel has cultivated a culture of learning and collaboration among some of the most talented and accomplished investment professionals, researchers and engineers in the world. Our colleagues are empowered to test their ideas and develop commercial solutions that accelerate their growth and drive real impact.
Citadel San Francisco, California, USA Office

4 Embarcadero Center, San Francisco, CA, United States, 94111
Similar Jobs at Citadel
Information Technology • Software • Financial Services • Big Data Analytics
As a PhD intern, you will design and develop software solutions for automated trading systems, collaborating closely with the Quantitative Research team.
Top Skills:
C++PythonR
Information Technology • Software • Financial Services • Big Data Analytics
As a Quantitative Researcher Intern, you'll develop models and strategies, conduct statistical analysis, and implement algorithms in a trading context.
Top Skills:
C++PythonR
Information Technology • Software • Financial Services • Big Data Analytics
Summer internship for undergraduate students graduating December 2028 through May 2029. Interns will develop financial modeling and company research skills, evaluate businesses and investment opportunities, analyze external data, and support long/short equities investing through investment-team rotations and mentorship.
Top Skills:
External Data SourcesFinancial ModelingQuantitative Risk Systems
What you need to know about the San Francisco Tech Scene
San Francisco and the surrounding Bay Area attracts more startup funding than any other region in the world. Home to Stanford University and UC Berkeley, leading VC firms and several of the world’s most valuable companies, the Bay Area is the place to go for anyone looking to make it big in the tech industry. That said, San Francisco has a lot to offer beyond technology thanks to a thriving art and music scene, excellent food and a short drive to several of the country’s most beautiful recreational areas.
Key Facts About San Francisco Tech
- Number of Tech Workers: 365,500; 13.9% of overall workforce (2024 CompTIA survey)
- Major Tech Employers: Google, Apple, Salesforce, Meta
- Key Industries: Artificial intelligence, cloud computing, fintech, consumer technology, software
- Funding Landscape: $50.5 billion in venture capital funding in 2024 (Pitchbook)
- Notable Investors: Sequoia Capital, Andreessen Horowitz, Bessemer Venture Partners, Greylock Partners, Khosla Ventures, Kleiner Perkins
- Research Centers and Universities: Stanford University; University of California, Berkeley; University of San Francisco; Santa Clara University; Ames Research Center; Center for AI Safety; California Institute for Regenerative Medicine


