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About

Built by coders, led by coders. At CQ9 we are mathematicians, computer scientists, statisticians, physicists, and engineers.

Offices

We trade on more than 200 markets worldwide, with offices and teams in 6 countries.

Diversity & Inclusion

Building the future of trading together.

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Access our Liquidity

As a liquidity provider, CQ9 develops automated trading algorithms designed to provide the best prices to our clients.

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Building Robust Codebases with Python’s Type Annotations

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How Our Engineers Hot-Patched a Third Party Binary Library

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Intern Spotlight: 2023 Software Engineering Summer Projects

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Work at CQ9

Join our vibrant community of curious thinkers and eager automators, working together at the forefront of innovation.

Life at CQ9

A place where kindness and excellence converge across six countries and nearly all the world’s electronic markets.

Student Opportunities

Full-time & internship opportunities for current undergraduates, graduating seniors, Masters, or PhD students.

Talent Community

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CQ9 Job Posting

About This Role

Chicago
Software Engineering - C++
Full-Time - Experienced
Job ID: R-101219
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