CircleUp Software Engineer Interview Questions

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

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CodingStart here. 10 questions · ~93 min

Find the first non-repeating character in a string using frequency counting and a second pass in O(n) time.

Binary Search in Sorted ArrayEasy

Practice

Implement binary search to find a target in a sorted array in O(log n) time.

RecursionMathArrays

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Graph Traversal with DFSMedium

Tests your ability to model problems and implement graph or tree traversal algorithms.

RecursionTreesGraphs

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Execution18 questions · ~167 min

Share a challenging project, your role, the risks and trade-offs you managed, and the final outcome.

Disagreeing on Safety-Critical TradeoffsEasy

Describe how you handled a disagreement with an engineer or safety expert when the decision involved delivery pressure and safety tradeoffs.

Trade-offsRisk AssessmentScope Management

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Prioritize Work Across Multiple ProjectsEasy

Explain how you prioritize work across multiple analytics projects with competing deadlines and stakeholders.

Trade-offsRoadmappingScope Management

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More topics2 questions · ~19 min

Distributed Data ConsistencyHard

Tests your understanding of distributed consistency models, trade-offs, and failure handling.

InfrastructureData ModelingQuality

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Tell Me About Your Previous RoleEasy

Tests your background fit and ability to summarize relevant risk analysis experience.

backgroundexperienceself introduction

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