Citadel
Software Engineer - Intern (Europe)
2nd Year, 3rd Year, Final Year, Postgraduate
Summer 2025
Software Engineering
Overview
The Citadel Software Engineer Internship in Europe is a highly sought-after program designed for students pursuing degrees in Computer Science or related fields. Interns work on challenging projects, contributing to critical low-latency, high-throughput systems that power Citadel's global financial operations. The program offers direct exposure to cutting-edge technology and real-world financial markets.
Citadel is a global financial institution operating one of the world’s largest and most successful hedge funds, alongside a leading market-making business through Citadel Securities. Founded in 1990 by Kenneth Griffin and headquartered in Miami, the firm manages capital across equities, credit, commodities, and global macro strategies.
Assessment: Wonderlic
Opens: 12 Aug 2025; Opened last year: 06 Aug 2024
The program typically runs for 10-12 weeks during the summer months. It is an in-person internship, usually based in London, UK, or other European offices. Interns are expected to work full-time hours, immersing themselves in their assigned teams and projects.
Citadel is known for offering highly competitive salaries to its interns, often among the highest in the industry, along with potential relocation assistance and other benefits.
Applicants are typically university students in their penultimate or final year of study, or postgraduate students, pursuing a degree in Computer Science, Software Engineering, or a closely related quantitative field. A strong academic record and significant programming experience in languages like C++, Java, Python, or C# are usually required. Work authorization for the location of the internship is essential.
The application process generally involves an online application, resume and cover letter submission, followed by multiple rounds of technical interviews. These interviews often include coding questions, data structure and algorithm problems, and discussions about systems design and past project experience. Some candidates may also face behavioral questions.
Citadel's software engineering internships are extremely competitive, attracting a vast number of applications from top universities worldwide. The firm selects a relatively small cohort of interns, renowned for their technical prowess and problem-solving abilities.
Completing a Citadel Software Engineer internship provides invaluable experience in high-performance computing, large-scale systems, and financial technology. It significantly enhances a student's resume, demonstrating their ability to thrive in a demanding, intellectually stimulating environment and often serves as a pipeline for full-time employment at Citadel or other leading tech and finance firms.
Heads up
Dates can shift each year. Always confirm the live deadline on the provider's own page before you apply.