Citadel

SWE Intern Interview Experience - United States

July 31, 2025

Neutral ExperienceNo Offer

Process

OA, followed by a technical interview with an engineer. This interview focuses not on LeetCode problems, but on understanding a small, toy codebase and general software design. Expect follow-up questions on efficiency and bugs to fix.

Questions

Inheritance, Lisp-like syntax, efficiency & memoization

Interview Statistics

The following metrics were computed from 29 interview experiences for the Citadel SWE Intern role in United States.

Success Rate

Pass Rate

Citadel's interview process for their SWE Intern roles in the United States is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive45%

Neutral48%

Negative7%

Candidates reported having very good feelings for Citadel's SWE Intern interview process in United States.

Citadel Interview Questions

Longest Non-decreasing Subarray From Two Arrays

Medium

You're given two arrays. Construct the longest possible non-decreasing subarray by picking elements from either array at each index.

ArraysDynamic Programming

Minimum Knight Moves

Medium

Find the minimum number of moves a knight needs to reach a target position on an infinite chessboard, starting from (0, 0).

Graphs

Binary Tree Maximum Path Sum

Hard

Find the maximum sum of any path in a binary tree, where a path can start and end at any node. The path must contain at least one node.

TreesRecursion