Citadel

Software Engineer (Internship) Interview Experience - Canada

October 25, 2025

Positive ExperienceNo Offer

Process

LC style questions, 1 hour to do them. Afterwards, 2 1-hour onsite, also LeetCode, with behavioral discussions about your resume and past experiences. Some teams do 2 interviews before onsite.

Questions

Coin change DP from LeetCode.

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Interview Statistics

The following metrics were computed from 1 interview experience for the Citadel Software Engineer (Internship) role in Canada.

Success Rate

Pass Rate

Citadel's interview process for their Software Engineer (Internship) roles in Canada is extremely selective, failing the vast majority of engineers.

Experience Rating

Positive100%

Neutral0%

Negative0%

Candidates reported having very good feelings for Citadel's Software Engineer (Internship) interview process in Canada.

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