Citadel Securities

HQ
Miami
Total Offices: 15
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
Ellen Glover Ellen Glover
Updated on September 04, 2026

24 Engineering Companies in Singapore to Know

Singapore is a hub for some of the top engineering companies in the world.

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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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Cathleen Draper Cathleen Draper
Updated on April 08, 2025

Take Note: 21 Chicago Companies to Watch This Fall

From fast-growing startups to established firms with hefty benefits, here’s a rundown of Chicago’s most noteworthy people-first organizations to keep an eye on.

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Brigid Hogan Brigid Hogan
Updated on April 23, 2024

Summer Tech Watch: 26 National Enterprises to Know

As summer is heating up, so too is the nation’s tech scene. Check out 26 enterprises that reward their employees with standout perks and benefits.

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Ellen Glover Ellen Glover
Updated on June 03, 2026

21 IT Companies in Singapore to Know

These top IT companies have offices in Singapore.

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20 Hours AgoSaved
In-Office
New York, NY, USA
Information Technology • Software • Financial Services • Quantitative Trading
Supports trading desks across the trade lifecycle, including trade booking, reconciliation, P&L analysis, exception resolution, risk management, and operational reporting. Partners with trading, technology, compliance, and operations teams to automate workflows, test and deploy new functionality, improve controls, and resolve complex trading issues. The role also analyzes trading activity and operational metrics and leads projects involving process design, risk management, and technology initiatives.
6 Days AgoSaved
In-Office
New York, NY, USA
Information Technology • Software • Financial Services • Quantitative Trading
Build high-performance, workflow-driven client interfaces for institutional electronic trading platforms using TypeScript and React. Integrate front-end applications with C++, Python, distributed backend services, real-time data, and data pipelines. Translate complex trading and market-data workflows into intuitive experiences, optimize performance, establish UI engineering best practices, and contribute to reusable frameworks, component libraries, and developer tooling while collaborating with product, business, quantitative research, and engineering teams.
Information Technology • Software • Financial Services • Quantitative Trading
Conduct quantitative research for automated trading strategies by developing mathematical models, translating algorithms into code, backtesting trading signals, analyzing unconventional data, and refining monetization systems. Collaborate with senior researchers during an 11-week post-doctoral internship while applying advanced probability, statistics, machine learning, and time-series techniques to financial markets.