Search the 25 jobs at Citadel Securities

Senior Research Engineer responsible for data curation, data assimilation, and translating high-level queries into efficient back-end queries on large-scale data collections. Key in enriching alpha signals for systematic business. Collaborates with QR teams and business operations to identify promising datasets globally. Develops custom data pipelines, tools, and analytical infrastructure.

Create next-generation software to support business areas, optimize performance, and efficiency. Build, maintain, and support trading platforms. Design and deploy software solutions. Analyze complex problems and provide timely systems support for trading activities.

Responsible for managing trade order lifecycle and workflow to optimize client experience. Works with sales traders, quantitative researchers, and development teams across various asset classes. Designs and enhances trading workflows and tools using data analysis methods to drive profitability and market share.

Site Reliability Engineer role at Citadel Securities with responsibilities including system troubleshooting, capacity planning, and application deployment. Requires 3+ years of experience, knowledge of network systems, scripting languages, and trading desk support. Experience in Python development and operating system performance tuning preferred. Must have good collaboration and communication skills.

As a Senior Network Engineer at Citadel Securities, you will design and maintain low-latency network infrastructure for high-performance trading systems, optimize network performance, troubleshoot issues, ensure network security, collaborate with teams, and stay updated with industry trends. Proven experience in high-frequency trading or financial services is required, along with knowledge of network protocols, topologies, and architectures.

FPGA Engineer at Citadel Securities creating next-generation FPGA solutions to support ultra-low latency trading systems. Responsibilities include partnering with business leaders to research, design, implement, and deploy FPGA solutions to optimize trading system performance.

Conduct research and statistical analyses on securities, work with large data sets, develop mathematical models, and implement trading strategies in a live environment.

Design, develop, test, and deploy elegant software solutions for automated trading systems. Partner with Quantitative Research team to define priorities and deliver custom software solutions.

Campus 2025: Citadel Securities Quant Invitational is an internship opportunity at Citadel Securities, a leading global market maker. The program provides students with hands-on experience in capital markets and the opportunity to work with experts in finance, science, and technology.

Citadel Securities is a leading global market maker providing liquidity to institutional and retail investors. The firm employs experts in finance, science, and technology to solve market challenges with advanced analytics.

Develop in-depth knowledge of financial markets, apply statistical techniques to trading, learn and adapt trading approaches, innovate with advanced technology on powerful trading platforms.

Develop in-depth knowledge of financial markets, apply statistical techniques to trading, innovate with powerful trading platforms, and adapt trading approaches. Requires a Bachelor's, master's, or PhD in math, engineering, statistics, computer science, physics, or related fields. Experience with programming, scripting, and statistical software preferred. Opportunity available in Miami and New York.

Develop and test automated quant trading strategies using sophisticated statistical techniques. Collaborate with senior team members, back test trading models, and conduct statistical analysis to build trading systems.

As a Machine Learning Engineer at Citadel Securities, you will design and build a next-generation deep learning library for financial markets, collaborate with researchers, optimize workflows, and stay updated with external innovations.

Support quantitative research and trading by designing, implementing and improving proprietary libraries and machine-learning pipelines. Leverage modern computer architectures to improve throughput or reduce cost. Identify compute waste and io bottlenecks and deliver cost-efficient solutions at scale.

Citadel Securities is seeking an experienced Executive Assistant in Miami to support a senior executive within their client franchise. Responsibilities include calendar management, travel arrangements, event coordination, expense reports, and more. The ideal candidate should have excellent communication, organizational, and interpersonal skills. Bachelor's degree required.

Research Engineers at Citadel Securities are responsible for curating and assimilating large-scale structured and unstructured data, translating high-level conceptual queries to efficient back-end queries, and supporting data science through advanced cloud-based services. They collaborate with teams to design insightful queries and identify promising datasets globally. Key responsibilities include data ownership, dataset production, data pipeline creation, and tooling development. Qualifications include driving business outcomes through data engineering, attention to detail, analytical abilities, and proficiency in Python, SQL, and cloud technologies.

Design, develop, test, and deploy elegant software solutions in Python, analyze complex business and technical problems, provide timely systems support for trading activities, and work closely with business leaders to define priorities and deliver custom technology solutions.

Quantitative Research Analysts at Citadel Securities play a key role in developing next-generation models and trading approaches for investment strategies using sophisticated statistical techniques. Responsibilities include conceptualizing valuation strategies, developing mathematical models, backtesting trading models, and conducting research and statistical analysis. The base salary range for this role is $175,000 to $275,000 yearly.

As a Quantitative Trading Intern at Citadel Securities, you will develop in-depth knowledge of financial markets, apply advanced statistical techniques to trading, constantly learn and adapt trading approaches, and innovate using powerful trading platforms. This 11-week program offers collaboration with senior team members and networking opportunities with peers.