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Updated weekly · Last refresh Oct 17

HeyGen Software Engineer Interview Questions

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

34questions
~5htotal time
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1
CodingStart here. 18 questions · ~170 min
Implement Word Search in a GridHard
Practice

Determine if a word exists in a 2D grid of characters using backtracking.

RecursionArraysStringsHeyGen
Check Palindrome StringEasy
Practice

Use a two-pointer string scan to determine whether a string reads the same forward and backward.

RecursionStringsData StructuresHeyGen
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2
Pipelines3 questions · ~28 min
SQL vs NoSQL Trade-offsMedium

Tests database selection reasoning across consistency, scalability, and query needs.

InfrastructureData ModelingQualityHeyGen
Real-Time Data Processing DesignHard

Tests system design for low-latency pipelines and reliable real-time processing.

Stream ProcessingETLOrchestrationHeyGen
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3
Behavioral & Leadership8 questions · ~76 min
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4
More topics5 questions · ~47 min
Storing Machines You ObtainMedium

Evaluates your data modeling and lifecycle management thinking for stored resources.

HeyGen
API Versioning ConsiderationsMedium

Tests API lifecycle thinking including backward compatibility and client migration.

Trade-offsRisk AssessmentScope ManagementHeyGen
Trend Detection and InsightsMedium

Tests data analysis approach for extracting trends and communicating actionable insights.

Data WranglingGroup ByAggregationsHeyGen
Cleaning Up Other MachinesMedium

Assesses your operational hygiene, cleanup strategy, and prevention of leaks or stale state.

HeyGen
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Monthly Sales Trends by CategoryMedium
Practice
Practice drill

Aggregate monthly sales by product category and use LAG to calculate month-over-month changes.

InfrastructureToolsData WranglingTotal Wine & MoreInc.Benjamin Moore
Unique Elements and Top-K FrequenciesMedium
Practice
Practice drill

Return the first row for each unique value, then rank the k most frequent values.

large datasetsData Structurescomplex queriesEverlaw
Extract Substrings From LogsMedium
Practice
Practice drill

Extract policy, claim, and event fields from inconsistently formatted log messages.

data cleaningnull handlingData WranglingState Farm
The finish line: interview-readyComplete all 34 questions plus 3 hands-on drills to finish this plan.