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Cognition AI Interview Questions

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

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1
CodingStart here. 13 questions · ~111 min
Linked List ReversalEasy
Practice

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

RecursionLinked ListsArraysCognition AI
Implement Binary SearchEasy

Tests algorithm implementation skills and correctness reasoning.

RecursionArraysSearchingCognition AI
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2
Execution13 questions · ~111 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 ManagementCognition AI
Manage Technical Debt DeliberatelyMedium

Explain how you would prioritize and execute technical debt work without losing stakeholder alignment or delivery momentum.

Trade-offsRisk AssessmentScope ManagementCognition AI
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3
Pipelines14 questions · ~119 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityCognition AI
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4
System Design3 questions · ~26 min
Design Smart Message Delivery RankingHard

Design an ML driven message delivery and prioritization system for a large real-time messaging product.

Feature StoreRetrievalModel ServingCognition AI
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5
Behavioral & Leadership4 questions · ~34 min
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6
More topics3 questions · ~26 min
Handle a Feature Missing ExpectationsMedium

How to diagnose and respond when a product feature falls short of user expectations.

User ResearchUser NeedsPain PointsCognition AI
SQL Analytics ExtractionMedium

Tests SQL proficiency for analytics queries including filtering, aggregation, and joins.

JoinsGroup ByAggregationsCognition AI
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.