At Citadel Securities, Quantitative Research Engineers work closely with Quantitative Researchers to develop and implement automated trading system software solutions. These solutions utilize advanced statistical and quantitative techniques to tackle complex financial challenges. We seek candidates with a proven track record of excellence in their field and a strong desire to apply their advanced software engineering skills to systematic investing.
As an intern, you’ll get to challenge the impossible in research through an 11 week program that will allow you to collaborate and connect with senior team members. In addition, you’ll get the opportunity to network and socialize with peers throughout the internship.
Our signature internship program takes place June through August. Occasionally, we can be flexible to other times of the year. You will be able to indicate your timing preference in the application.
Your Objectives
Design, develop, test, and deploy elegant software solutions for automated trading systems
Partner with the Quantitative Research team to define priorities and deliver custom software solutions
Your Skills & Talents
PhD degree in computer science, mathematics, statistics, physics, or another highly quantitative field
Strong programming skills with proficiency in one or more programming languages, including C++, Python, and R
A deep passion for technology, software development, and mathematics
Strong computer science fundamentals and software development experience
Experience with some of the following areas: Distributed Computing, Natural Language Processing, Machine Learning, Platform Development, Networking, System Design, and/or Web Development
Proven track record of creatively solving problems by understanding and prioritizing business value and applying technology solutions
Strong written and verbal communications skills
Opportunities available in Zurich and London.
INTERN
mid
4/11/2026
You will be redirected to Citadel Securities's application portal.