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Cantina Interview Questions

The questions to prepare for Cantina interviews, across all roles. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 7 questions · ~79 min
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysCantina
Longest Unique Substring in EnoMedium
Practice

Use a sliding window and hash map to find the longest substring without repeated characters in a string.

Hash TablesStringsTwo PointersCantina
Binary Search ImplementationMedium
Practice

Implement binary search to find a target in a sorted array in logarithmic time.

SearchingAlgorithmsCantina
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2
Execution4 questions · ~45 min
Design Feature for Existing ApplicationMedium

Explain how you would design a new feature in an existing application while managing scope, trade-offs, and success criteria.

Trade-offsRoadmappingScope ManagementCantina
Refactor Legacy CodebaseHard

Tests risk management, testing strategy, and incremental improvement planning.

Trade-offsRisk AssessmentScope ManagementCantina
Project Success MetricsMedium

Tests ability to define measurable outcomes aligned to delivery, quality, and user impact.

Success CriteriaRoadmappingCantina
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3
Behavioral & Leadership9 questions · ~102 min
Prioritizing Across Competing Client ProjectsEasy

Tests prioritization under pressure across multiple projects, including trade-off judgment, stakeholder communication, and ownership of outcomes.

OwnershipPrioritizationCantina
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4
More topics1 question · ~11 min
Optimize a Slow SQL QueryMedium

Tests your performance troubleshooting skills for dv01-scale reporting queries.

JoinsData WranglingCTEsCantina
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 21 questions plus 3 hands-on drills to finish this plan.