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Design and build the next generation library for deep learning within the firm. Empower researchers to iterate faster and perform experiments that were not possible before. Work with HPC experts to optimize workflows and deliver improvements in training speed and cost savings.

Software Engineers at Citadel are tasked with building, maintaining, and supporting a powerful trading platform while improving its performance and stability. They will design, develop, test, and deploy software solutions while collaborating with business leaders and providing support for trading activities.

The Senior Research Engineer will curate and manage large-scale structured and unstructured data, collaborating with researchers to produce valuable datasets and automate data pipelines. Responsibilities include data extraction, cleaning, query design, and developing analytical infrastructure, all aimed at enhancing business outcomes through data-driven insights.

The Site Reliability Engineer will support the development, deployment, and operation of applications in a distributed environment. Responsibilities include troubleshooting networking issues, writing SQL queries, and participating in application migrations and infrastructure upgrades, particularly for candidates with 3+ years of experience.

As a Quantitative Developer/Research Engineer, you will design, develop, test, and deploy software solutions for automated trading systems in collaboration with the Quantitative Research team. Your role will involve leveraging advanced statistical techniques and math in the development process.

The Quantitative Researcher conducts research and statistical analysis on securities, works with large data sets to predict market patterns, develops mathematical models, and implements trading models in a live environment.

The Senior Network Engineer will be responsible for designing, implementing, and maintaining low-latency network solutions to support high-performance trading systems. Key tasks include monitoring network performance, troubleshooting issues, ensuring security measures, collaborating with teams, and planning for network capacity.