Research Engineer

Job Description
Role Summary
As a Research Engineer at Citadel Securities, you will work closely with the best talents in the industry to design and build high-performance and foundational Alpha and AI infrastructure. Your work will enable researchers/analysts/traders to leverage the most advanced AI algorithms efficiently and productively in their day-to-day workflow.
Opportunities may be available from time to time in any location in which the business is based for suitable candidates. If you are interested in a career with Citadel, please share your details and we will contact you if there is a vacancy available.
Objectives

• Design, develop, and deploy high-performance solutions to modernize our Alpha and AI infrastructure.
• Work with the researchers to define priorities, deliver new functionalities, optimize, and maintain day-to-day productions.
• Stay at the frontier of open-source engineering/AI solutions and adapt them for internal use.

Skills and Preferred Qualifications

• Strong problem-solving and communication skills
• Strong development skills in Python and C++
• Experience with machine learning libraries/frameworks (e.g. PyTorch, HuggingFace) and a demonstrated passion for leveraging AI and engineering excellence to make big impact in quantitative finance.

Bonus Points

• Experience working across the entire product lifecycle from conceptualization to production.
• Experience building high-performance infrastructure.
• Experience building LLM applications with open-source projects, or other orchestration frameworks.
• Experience with information retrieval systems, semantic search, etc.
• Experience with classical NLP tools

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.