We re looking for driven in ators and optimizers who are excited about cutting-edge technology and making a measurable impact. If you re passionate, obsessed with performance, and excited to work where nanoseconds matter, read on.

What You ll Do

Solve What Matters: Break down intricate challenges and deliver clear, elegant solutions that drive real world outcomes
Build and Scale: Design, build and maintain high performance systems that are the backbone of our trading infrastructure
Optimize Everything: Continuously push the limits of latency, reliability, and throughput in a distributed environment
Partner and Deliver: Collaborate directly with traders, researchers, and fellow engineers to deliver ideas into production
Own it in production: Take pride in running your code live itoring, supporting and improving it every day

What we are looking for

Deep experience in C++ with a passion for clean, performant code
A strong grasp of multithreading, concurrency, and distributed systems
Curiosity to explore how things work and a drive to improve them
Clear, thoughtful communication and the ability to thrive in a high ownership environment
Bachelor s (or higher) degree in a Computer Science, Engineering or related field
Background in Trading or finance is a plus but not a requirement

Opportunities be available from time to time in any location in which the business is based for suitable candi . If you are interested in a career with Citadel Securities, please share your details and we will contact you if there is a vacancy available.

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C++ Software Engineer