Dataford
Dataford
Top 21
Prep plan
Updated weekly · Last refresh Oct 17

Gen Digital Backend Engineer Interview Questions

The questions to prepare for a Gen Digital Backend Engineer interview. Questions from real interview reports rank first. Updated daily.

21questions
~3htotal time
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1
ExecutionStart here. 3 questions · ~24 min
Debugging Production Leaks and BottlenecksHard

Evaluates your troubleshooting workflow for reliability and performance issues in production.

memory leakDebuggingGen Digital
Applying SOLID in PracticeMedium

Evaluates whether you can translate SOLID into concrete backend design decisions.

software designsolid principlesGen Digital
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2
System Design3 questions · ~24 min
Redesign for 10x TrafficHard

Assesses your system design skills for scaling backend services under significant load growth.

Gen Digital
Design Pattern Trade-offsMedium

Evaluates your judgment in balancing flexibility, complexity, and maintainability in service design.

Trade-offssystem architecturedesign patternsGen Digital
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3
Coding4 questions · ~32 min
Unit Testing Complex Backend LogicMedium

Evaluates your testing approach for correctness, edge cases, and maintainable test suites.

Gen Digital
SOLID for MaintainabilityMedium

Assesses your ability to use SOLID to structure large backend systems for change.

code maintainabilitysolid principlesGen Digital
Refactoring Legacy Services in ProductionMedium

Tests your strategies for safe rollout, validation, and minimizing downtime during refactors.

refactoringGen Digital
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4
Behavioral & Leadership10 questions · ~81 min
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5
More topics1 question · ~8 min
Database Trade-Offs for ScaleMedium

Tests your understanding of database architecture choices under load.

Trade-offsdatabase architectureGen Digital
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Second Highest Salary at NovaTechEasy
Practice
Practice drill

Find the second highest distinct employee salary from a single table, returning NULL if it does not exist.

SubqueriesRankingAggregationsBest BuyAmtex SystemsC3 AI
SQL Inner Join for SubscriptionsEasy
Practice
Practice drill

Use an INNER JOIN to return matching user account details and subscription statuses.

SubqueriesJoinsData WranglingGen Digital
Database Trade-Offs for DetectionHard
Practice
Practice drill

Compare financial crime detection architectures using joined run metrics, aggregates, NULL handling, and ordered performance results.

fraud detectionTrade-offsdistributed databasesDeloitte
The finish line: interview-readyComplete all 21 questions plus 3 hands-on drills to finish this plan.