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Duke University Software Engineer Interview Questions

The questions to prepare for a Duke University Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

31questions
~5htotal time
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1
CodingStart here. 7 questions · ~61 min
Reverse a String in PythonEasy
Practice

Reverse a string in Python using character traversal and return the reversed result.

StringsfunctionspythonDuke University
Binary Search on Sorted ArraysEasy

Explain how binary search works on a sorted array and why its time complexity is O(log n).

time complexityArraysSearchingDuke University
Compare REST and SOAP APIsMedium

Explain the core differences between REST and SOAP, including message format, protocol style, and trade-offs.

Hash TablesStringsDuke University
Time and Space ComplexityMedium

Tests your ability to analyze algorithm efficiency and communicate tradeoffs clearly.

MathArraysDuke University
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2
Execution4 questions · ~35 min
Balance Debt Against Feature DeliveryMedium

Explain how you would balance technical debt reduction with feature delivery when stakeholders want visible progress but engineering risk is rising.

Trade-offsRisk AssessmentScope ManagementDuke University
Debug Intermittent System IssuesMedium

Tests your general debugging process for flaky, non-deterministic failures.

Trade-offsSuccess CriteriaRisk AssessmentDuke University
Prioritize Features for ReleaseMedium

Tests product thinking, tradeoff analysis, and planning for timely delivery.

Trade-offsScope ManagementPrioritizationDuke University
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3
Behavioral & Leadership20 questions · ~175 min
Your Role on a TeamEasy

Tests teamwork, ownership, and communication by asking for a specific example of the candidate's role and impact on a team outcome.

teamworkcollaborationroleDuke University
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