Citadel Securities

HQ
Miami, Florida, USA
Total Offices: 3
1,900 Total Employees
Year Founded: 2002
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Articles about Citadel Securities

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Olivia McClure Olivia McClure
Published on September 25, 2025

How Citadel Securities' Early Careers Technology Program Unlocks Growth, Impact and Career Paths

Learn how the program at the market maker allows early-career technologists to jumpstart their professional growth journeys and make an immediate impact.

Olivia McClure Olivia McClure
Updated on December 31, 2025

Engineering the Future: Inside Citadel Securities’ Early Adoption of C++26

Technical Fellow Herb Sutter explains how the newest version of C++ is driving efficiency, reliability and resiliency in global trading.

Citadel
Cathleen Draper Cathleen Draper
Updated on April 10, 2025

32 NYC Companies to Watch This Spring

What makes these NYC tech companies stand out from the crowd? Built In NYC highlights the perks and culture of 32 flourishing companies this spring.

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Olivia McClure Olivia McClure
Updated on September 25, 2025

How Citadel Securities' Early Careers Technology Program Unlocks Growth, Impact and Career Paths

Learn how the program at the market maker allows early-career technologists to jumpstart their professional growth journeys and make an immediate impact.

Photo: Citadel Securities
Brand Studio Logo
Cathleen Draper Cathleen Draper
Updated on April 10, 2025

32 NYC Companies to Watch This Spring

What makes these NYC tech companies stand out from the crowd? Built In NYC highlights the perks and culture of 32 flourishing companies this spring.

Article image
Brand Studio Logo
Olivia McClure Olivia McClure
Updated on December 31, 2025

Engineering the Future: Inside Citadel Securities’ Early Adoption of C++26

Technical Fellow Herb Sutter explains how the newest version of C++ is driving efficiency, reliability and resiliency in global trading.

Citadel

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Citadel Securities

C++ Software Engineer

YesterdaySaved
In-Office
New York, NY, USA
Information Technology • Software • Financial Services
Software Engineers at Citadel develop, maintain, and support high-performance trading platforms, focusing on custom software solutions and system stability.
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Citadel Securities

Quantitative Developer/Research Engineer

2 Days AgoSaved
In-Office
New York, NY, USA
Information Technology • Software • Financial Services
The role involves designing, developing, testing, and deploying software solutions for automated trading systems, collaborating with quantitative researchers to prioritize projects.
Information Technology • Software • Financial Services
As a Quantitative Research Analyst, you will develop and test automated trading strategies, conduct research, and refine monetization systems using advanced statistical techniques.
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