Citadel Securities

HQ
Miami
Total Offices: 3
1,900 Total Employees
Year Founded: 2002

Articles about Citadel Securities

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Photo: Citadel Securities
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
YesterdaySaved
In-Office
2 Locations
Information Technology • Software • Financial Services • Quantitative Trading
The Market Data Engineer will design and implement high-performance market data systems, focusing on trading infrastructure, performance optimization, and system resiliency.
YesterdaySaved
In-Office
2 Locations
Information Technology • Software • Financial Services • Quantitative Trading
Recruiting Coordinators support full-cycle recruitment processes, manage candidate interactions, and work on HR projects, all while building stakeholder relationships.
3 Days AgoSaved
In-Office
2 Locations
Information Technology • Software • Financial Services • Quantitative Trading
Build and optimize low-latency, high-performance C++ trading systems for crypto markets; partner with researchers and traders to productionize strategies; optimize latency, throughput, reliability; implement pricing, risk, and execution logic; analyze large-scale market and trade data; ensure resilience, testing, and scalability across global venues.