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Updated weekly · Last refresh Nov 6

Clear street Software Engineer Interview Questions

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

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CodingStart here. 20 questions · ~186 min

Maximum Depth of Binary TreeEasy

Practice

Problem Given the root of a binary tree, return its maximum depth as an integer. The maximum depth is the number of nodes along the longest path from the ...

RecursionQueueTrees

Clear street

Longest Substring Without RepeatsMedium

Practice

Find the longest substring with all unique characters using a sliding window.

Hash TablesStringsTwo Pointers

Clear street

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Software Architecture3 questions · ~28 min

Microservices vs Monolith Trade-offsMedium

Tests your architectural decision-making for latency, scalability, operational complexity, and team productivity.

Stakeholder ManagementOwnershipDealing With Ambiguity

Clear street

Microservices vs Monolith DecisionMedium

Tests architectural tradeoff reasoning and decision-making under constraints.

OwnershipDealing With AmbiguityPrioritization

Clear street

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Behavioral & Leadership11 questions · ~102 min

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More topics5 questions · ~46 min

Backfill While Preserving Real TimeHard

Approach for running large historical backfills without breaking real-time pipeline freshness or correctness.

Stream ProcessingDependenciesBackfilling

Clear street

Trading System Monitoring and AlertsMedium

Tests your approach to reliability, observability, and incident response in a production trading environment.

Stakeholder ManagementCommunicationOwnership

Clear street

Optimize Slow Trading Dashboard QueryMedium

Tests SQL performance troubleshooting and practical query optimization for low-latency analytics.

Window FunctionsJoinsAggregations

Clear street

React and Redux Trade-offsMedium

Tests your practical frontend engineering judgment around state management, performance, and maintainability.

CommunicationOwnershipDealing With Ambiguity

Clear street

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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min

Graph-Focused Data StructuresHard

Practice

Practice drill

Traverse a directed graph from one node, return shortest paths, and handle cycles and unreachable nodes.

data relationshipsCTEsData Structures

Intuit

Reading Charts Under PressureMedium

Practice

Practice drill

Use SQL to summarize chart values and identify the risk signal behind the trend.

analytics toolsData Analysisbusiness problem

Barclays

SQL Window Functions ExperienceMedium

Practice

Practice drill

Use SQL window functions to rank regions by average 2024 yield within each country.

Window FunctionsJoinsData Manipulation

Ernst & Young

KBR

Maximus Tech

The finish line: interview-readyComplete all 39 questions plus 3 hands-on drills to finish this plan.