Software Engineer Internship Interview Experience - United States
Process
Straightforward technical question. It was completely technical and might have totally flopped if I hadn't taken a data-structures class (definitely review LeetCode problems!). I was allowed to use a few standard languages (Python, C++, etc.).
Questions
Find the median of a moving window of size X across a set of numbers N (N can be very, very large) efficiently.
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Interview Statistics
The following metrics were computed from 2 interview experiences for the Citadel Software Engineer Internship role in United States.
Success Rate
Citadel's interview process for their Software Engineer Internship roles in the United States is extremely selective, failing the vast majority of engineers.
Experience Rating
Candidates reported having very good feelings for Citadel's Software Engineer Internship interview process in United States.
Citadel Work Experiences
- 5.0Good Pay, Long HoursSoftware Engineer • Former EmployeeNew York, New York, United StatesOctober 15, 2025Pros: Good pay. Challenging projects for early career.Cons: The hours are relatively long.
- 4.0Good place to learn a tonSite Reliability Engineer • Former EmployeeOctober 13, 2025Pros: A lot of room to grow, learn, and take ownership.Cons: A little bit of difficulty in aligning on the direction of some work.
- 3.0Trading Technology alignedSoftware Engineer • Former EmployeeSeptember 19, 2025Pros: Budgets for technology are substantial. If you need the fastest hardware, proprietary tooling, or specialized infrastructure, Citadel won’t cut corners.Cons: Unlike a tech company where you might prototype products with more creative freedom, Citadel’s projects are tightly aligned to trading and business goals. Priorities can shift fast if markets demand it.
Citadel Interview Questions
