Citadel Securities

Research Engineer

Posted 5 Days Ago

Miami, FL

Mid level

Information Technology • Software • Financial Services

We embrace bold ideas and seize opportunities others don’t, from the way we operate to the strategies we deploy.

The Role

As a Research Engineer at Citadel Securities, you will design and build high-performance Alpha and AI infrastructure, enabling efficient use of advanced AI algorithms for researchers, analysts, and traders. Responsibilities include developing new functionalities, optimizing systems, and adapting open-source AI solutions.

Summary Generated by Built In

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.

Top Skills

C++

Python

What the Team is Saying

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The Company

HQ: Miami, FL

1,900 Employees

On-site Workplace

Year Founded: 2002

What We Do

Citadel Securities is the next-generation capital markets firm. Our work is powered by the deepest integration of financial, mathematical and engineering expertise. Combining deep trading acumen with cutting-edge analytics and technology, we at Citadel Securities deliver critical liquidity to the world’s most important financial institutions—while helping shape the global markets of tomorrow.

Why Work With Us

We do not accept the status quo and we are constantly looking to achieve what others think is impossible. That’s true not just in our careers, but also in our communities.