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Updated weekly · Last refresh Aug 30

HeyGen Software Engineer Interview Questions

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

38questions
~6htotal time
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1
CodingStart here. 22 questions · ~197 min
Check Palindrome StringEasy
Practice

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

RecursionStringsData StructuresHeyGen
Implement Word Search in a GridHard
Practice

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

RecursionArraysStringsHeyGen
2D Dynamic Programming OAHard

Tests ability to solve and optimize a 2D dynamic programming problem under interview constraints.

RecursionDynamic ProgrammingMatrixHeyGen
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2
Pipelines3 questions · ~27 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 & Leadership10 questions · ~89 min
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4
More topics3 questions · ~27 min
Trend Detection and InsightsMedium

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

Data WranglingGroup ByAggregationsHeyGen
High Availability Service ArchitectureHard

Tests resilience design including redundancy, failover, and operational reliability.

Launch PlanningTrade-offsRisk AssessmentHeyGen
API Versioning ConsiderationsMedium

Tests API lifecycle thinking including backward compatibility and client migration.

Trade-offsRisk AssessmentScope ManagementHeyGen
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
Contact Center Agent Performance MetricsHard
Practice
Practice drill

Compute daily agent call KPIs and SLA using joins, aggregations, and window ranking in a contact center model.

ETLAggregationsData ModelingADP
Top Customers by Net SalesMedium
Practice
Practice drill

Compute top 10 customers by net sales using joins and aggregations, ordering by revenue with deterministic tie-breaking.

SubqueriesJoinsData WranglingGain DigitalTCSZest AI
The finish line: interview-readyComplete all 38 questions plus 3 hands-on drills to finish this plan.