Jobs at Citadel Securities

Design, build, and operate high-performance Kdb+/Q platforms for real-time and historical market data, partnering with traders and researchers to deliver scalable time-series analytics, streaming, and trading solutions while driving architecture, automation, and operational excellence.

Build full-stack, low-latency trading and pricing tools for options traders. Collaborate with traders, researchers, and business stakeholders to design intuitive frontends and scalable backend services, prototype and productionize distributed systems, and expand trading capabilities globally while improving performance, stability, and usability.

Software Engineers at Citadel develop, maintain, and support high-performance trading platforms, focusing on custom software solutions and system stability.

Design, develop, and deploy software solutions for automated trading systems while collaborating with researchers on technology priorities.

The Senior Options Software Engineer will design, develop, and support a high-performance trading platform, collaborating with business leaders to create innovative software solutions and handle complex systems support for trading activities.

Seeking a Site Reliability Engineer to support real-time distributed environments, perform capacity planning, and manage application migrations. Candidates should be knowledgeable in UNIX/Linux, networking, SQL, and scripting with Python.

FPGA Engineers at Citadel Securities design and deploy FPGA solutions to enhance trading systems, maximizing efficiency and performance.

The Site Reliability Engineer will provide support and diagnose issues within a real-time, distributed environment, focusing on large-scale application and infrastructure management, with basic required skills in UNIX/Linux, networking, SQL, and scripting languages.