Top 22
Prep plan
Updated weekly · Last refresh Oct 17

Cog Culture Software Engineer Interview Questions

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

22questions
~4htotal time
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1
CodingStart here. 6 questions · ~58 min
Palindrome FunctionEasy
Practice

Use two pointers to determine whether a City National Bank reference label reads identically forward and backward.

RecursionStringsTwo PointersCog Culture
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysCog Culture
Longest Substring Without RepeatsMedium

Tests string algorithm design and efficient use of data structures.

Hash TablesStringsTwo PointersCog Culture
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2
Execution5 questions · ~48 min
Design a Scalable ApplicationEasy

Explain how you would design a scalable application, including trade-offs, risks, stakeholder needs, and how you define success.

Trade-offsRisk AssessmentScope ManagementCog Culture
Real-Time Chat ArchitectureHard

Tests your ability to design low-latency, scalable real-time systems with appropriate components and data flow.

Trade-offsRoadmappingRisk AssessmentCog Culture
Implementing Web CachingMedium

Tests your ability to choose caching strategies and ensure correctness, performance, and cache invalidation.

Trade-offsSuccess CriteriaRisk AssessmentCog Culture
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3
Behavioral & Leadership10 questions · ~96 min
Improving Team Git PracticesEasy

Tests ownership and communication through a concrete example of improving team collaboration with version control practices.

Stakeholder ManagementCommunicationOwnershipCog Culture
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4
More topics1 question · ~10 min
Optimize a Database QueryMedium

Tests your ability to improve query performance using indexing, plans, and query rewrites.

JoinsCTEsAggregationsCog Culture
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 22 questions plus 3 hands-on drills to finish this plan.