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Prep plan
Updated weekly · Last refresh Oct 17

CloudFactory Software Engineer Interview Questions

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

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1
CodingStart here. 12 questions · ~138 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 TablesArraysStringsCloudFactory
Implement Breadth-First SearchEasy
Practice

Return the breadth-first visitation order from an NAU campus location represented as a directed adjacency-list graph.

QueueSearchingGraphsCloudFactory
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2
SQL & Data Manipulation9 questions + 1 drill · ~114 min
3
System Design6 questions · ~69 min
Design Two-Tower Candidate RetrievalHard

Design a two-tower candidate retrieval system for a large personalized feed with 600M items and tight latency budgets.

Feature StoreRetrievalTwo-Tower ModelsCloudFactory
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4
Execution12 questions · ~138 min
Discuss Architecture Pattern ChoicesEasy

Explain which architecture patterns you have used, how you chose among them, and how you managed delivery trade-offs.

InfrastructureTrade-offsRoadmappingCloudFactory
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5
Pipelines7 questions · ~81 min
Backfill While Preserving Real TimeHard

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

Stream ProcessingDependenciesBackfillingCloudFactory
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6
Behavioral & Leadership3 questions · ~35 min
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7
More topics1 question · ~12 min
JavaScript and React BasicsEasy

Assesses your foundational web development knowledge relevant to building user-facing services.

javascriptreactCloudFactory
The finish line: interview-readyComplete all 50 questions plus 1 hands-on drill to finish this plan.