Simplex Trading

HQ
Chicago
120 Total Employees
51 Product + Tech Employees
Year Founded: 2004
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Articles about Simplex Trading

Featured Articles

Dennis Kerlin, Simplex Trading CCO. | Photo: Simplex Trading
Ashley Bowden Ashley Bowden
Published on October 22, 2025

Simplex Trading Appoints New Chief Compliance Officer

Dennis Kerlin joins the firm with over two decades of options trading experience.

Alyssa Schroer Alyssa Schroer
Updated on July 10, 2026

107 Chicago Software Companies You Should Know

These are the top software companies that are helping make Chicago a thriving hub for tech.

Image: Shutterstock
Matthew Urwin Matthew Urwin
Updated on June 26, 2026

82 Companies in Chicago Pushing the City to New Heights

Check out this list of the top companies making Chicago a vibrant tech hub.

Image: Shutterstock

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Alyssa Schroer Alyssa Schroer
Updated on December 10, 2025

Making Trades: 19 Trading Firms and Technology Companies Changing the Industry

From market makers to quant shops, these Chicago firms rely on software, automation and analytics to compete across futures, options, ETFs and crypto.

​ Image: Shutterstock ​

Recently posted jobs

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Simplex Trading

Software Engineer

5 Days AgoSaved
In-Office
Chicago, IL, USA
Fintech • Software
Design and maintain efficient C++ code for a high-speed trading system, including algorithm development and data analysis.
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Simplex Trading

Volatility Trader

13 Days AgoSaved
In-Office
Chicago, IL, USA
Fintech • Software
As a Volatility Trader, you will identify market opportunities, manage positions, collaborate with teams on pricing systems, and improve risk management tools.
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Simplex Trading

Infrastructure Engineer

14 Days AgoSaved
In-Office
Chicago, IL, USA
Fintech • Software
As an Infrastructure Engineer, you will develop and maintain systems, triage issues, and manage Linux environments, working both independently and as part of a team.
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