Top 50
Prep plan
Updated weekly · Last refresh Oct 17

Harvard University Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 12 questions · ~106 min
Two Sum with TargetEasy
Practice

Use a hash map to find two array elements that sum to a target in O(n) time.

Hash TablesArraysStringsHarvard University
Reverse a Linked ListEasy
Practice

Reverse a singly linked list in place using pointer manipulation.

RecursionLinked ListsHarvard University
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2
Execution12 questions · ~106 min
Evaluate Cloud Adoption Trade-offsEasy

Assess the benefits, drawbacks, and decision criteria for adopting cloud-based solutions for a business-critical platform.

Trade-offsSuccess CriteriaRisk AssessmentHarvard University
Lead a Cross-Functional Analytics ProjectEasy

Describe a project you led, how you aligned stakeholders, managed risk, and what outcome you delivered.

Launch PlanningSuccess CriteriaRoadmappingHarvard University
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3
Pipelines12 questions · ~106 min
Backfill Missing Customer DataHard

Design a safe backfill for missing customer records after an upstream fix, with idempotent reprocessing and data quality checks.

IdempotencyDependenciesBackfillingHarvard University
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4
Security & Infrastructure3 questions · ~26 min
Frontend Web Page SecurityHard

Evaluates your knowledge of common frontend security risks and mitigations.

web securityHarvard University
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5
System Design7 questions · ~62 min
API Rate Limiter DesignHard

Evaluates your system design skills for protecting Persistent Systems APIs under load.

api designperformanceHarvard University
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6
Behavioral & Leadership3 questions · ~26 min
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7
More topics1 question · ~9 min
SQL: Sum Orders by GenderMedium

Tests your SQL skills for joins and conditional aggregation.

sql queriesAggregationsHarvard University
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.