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General Motors (GM) Software Engineer Interview Questions

The questions to prepare for a General Motors (GM) Software Engineer interview. Questions from real interview reports rank first. Updated weekly.

50questions
~9htotal time
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1
CodingStart here. 21 questions · ~233 min
Reverse a String in PythonEasy
Practice

Reverse a string in Python using character traversal and return the reversed result.

StringsfunctionspythonGeneral Motors (GM)
Maximum Subarray SumEasy
Practice

Compute the largest sum of any contiguous subarray using Kadane's algorithm in O(n) time.

Dynamic ProgrammingArraysGreedyGeneral Motors (GM)
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2
Execution9 questions · ~100 min
Software Development LifecycleEasy

Tests your end-to-end understanding of how software moves from planning to delivery and maintenance.

RoadmappingDependenciesQualityGeneral Motors (GM)
Debugging a Live Critical IssueHard

Tests incident triage, debugging strategy, and risk-aware decision making under production constraints.

Launch PlanningSuccess CriteriaRisk AssessmentGeneral Motors (GM)
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3
System Design9 questions · ~100 min
Lane Keep Assist RequirementsMedium

Evaluates requirements gathering and technical understanding for an automotive feature.

requirementsGeneral Motors (GM)
Vehicle Control SensorsHard

Assesses your understanding of sensor selection for vehicle control and safety systems.

General Motors (GM)
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4
Security & Infrastructure3 questions · ~33 min
PLC Unresponsive TroubleshootingMedium

Assesses troubleshooting methodology for industrial systems and reliability.

TroubleshootingGeneral Motors (GM)
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5
Behavioral & Leadership6 questions · ~67 min
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6
More topics2 questions · ~22 min
SQL From ERDMedium

Evaluates SQL proficiency and ability to translate ERDs into correct queries.

sqlGeneral Motors (GM)
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Running 30-Day Active Users SQLMedium
Practice
Practice drill

Calculate rolling 30-day distinct OnStar users using a deduplication window function and date-range aggregation.

Window FunctionssqlGeneral Motors (GM)
Top Contributors to Diagnostic Trouble CodesMedium
Practice
Practice drill

Rank GM vehicle models by diagnostic trouble code volume using joins, conditional aggregation, and a window function.

sqlGeneral Motors (GM)
SQL Average Selling PriceMedium
Practice
Practice drill

Calculate weighted average selling prices by product using a date-range join, aggregation, and NULL handling.

leetcodesqlCostarCostar Group
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