Job Description
As a leading market maker across many regions and asset classes, Citadel Securities operates a large and diverse technology platform. With a large number of contributors to our platform across software development, strategy development, quantitative research, trading operations and compliance, it is of paramount importance that only the highest quality code be deployed into production. Maintaining these strict levels of quality assurance while allowing for rapid development and deployment requires extensive use of automation.
Key components of our technology platform are developed by our Trading System Development teams. These teams are tasked with developing cutting edge, state of the art trading systems that consistently outperform across multiple business areas. As part of this work, while we recognize that performance and latency are extremely important, we also recognize that correctness is even more important. To demonstrate that, we invest significant effort in unit, component, scenario, integration and regression testing of our trading platforms, both in exchange UAT and internal custom lab environments.
The successful candidate in this role will make a significant contribution to our trading systems correctness verification in these environments.
Joining the Citadel Securities Trading System Development teams will put individuals in a position to be at the forefront of defining best practices, as well as building best of breed solutions for one of the world's preeminent financial institutions.
Role Summary

• Work with stock, futures, options and other exchanges to understand market protocols and rules of engagement
• Collaborate with trading system developers, quantitative researchers and traders to help discover requirements, create test plans, devise failure scenarios and implement verification
• Contribute to automation frameworks for UAT and lab testing for our cutting-edge trading platforms
• Develop frameworks for scenario, component and integration testing

Objectives

• Prior experience with testing financial markets trading systems or order management systems
• Experience programming in Python or C++
• Proven track record in automating test cases for complex trading systems
• Experience partnering with cross-functional teams to drive large projects on a global basis
• Excellent written and verbal communication skills

Skills and Preferred Qualifications

• Experience building automated test suites and/or building out enterprise-wide testing frameworks
• Understanding of network protocols and TCP/IP model
• Understanding of Equity, Derivatives or Fixed Income products
• Experience with SQL and NoSQL database technologies

In accordance with New York City's Pay Transparency Law, the base salary range for this role is $125,000 to $350,000. Base salary does not include other forms of compensation or benefits.
About Citadel Securities
Citadel Securities is the next-generation capital markets firm and a leading global market maker. We provide institutional and retail investors with the liquidity they need to trade a broad array of equity and fixed income products in any market condition. The brightest minds in finance, science and technology use powerful, advanced analytics to solve the market's most critical challenges, turning big ideas into real-world outcomes.