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Updated weekly · Last refresh Sep 20

Software Technology Data Analyst Interview Questions

The questions to prepare for a Software Technology Data Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 4 questions + 3 drills · ~62 min
Optimizing Slow PostgreSQL Research QueriesMedium

Explain how you diagnosed and optimized a slow PostgreSQL query using execution plans, indexing, and query rewrites.

JoinsData WranglingAggregationsSoftware Technology
Customer Orders: LEFT vs INNER JOINEasy

Explain how INNER JOIN and LEFT JOIN differ, and when to use each for matched-only versus all-left-row analysis.

JoinsData WranglingGroup BySoftware Technology
Handling Missing and Dirty SQL DataMedium

Explain how to profile, clean, and standardize missing or dirty data before analysis.

Data WranglingCase WhenQualitySoftware Technology
SQL Segmentation by OutcomeMedium
Practice
Practice drill

Segment Instacart orders by region, retailer, and derived delivery outcome with aggregate operational metrics.

JoinsData WranglingGroup ByInstacart
SQL Experience in AnalysisMedium
Practice
Practice drill

Use SQL aggregation to summarize completed analysis records by analyst.

JoinsData ManipulationData WranglingWalgreens Boots Alliance
Operational Bottlenecks SQL JoinMedium
Practice
Practice drill

Join attendance, lunch service, and enrollment data to identify school-grade bottlenecks.

JoinsData WranglingGroup BySuccess Academy Charter Schools
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2
Behavioral & Leadership7 questions · ~56 min
Handling Critical Feedback on AnalysisEasy

Tests how you receive and act on feedback about your analysis, including communication, stakeholder management, and self-awareness.

CommunicationOwnershipDealing With AmbiguitySoftware Technology
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3
More topics4 questions · ~32 min
Evaluate Feature Success Metrics for New App UpdateMedium

Identify key metrics to assess the success of a new feature in a mobile app update and propose a metric evaluation strategy.

KPIsEngagement MetricsSoftware Technology
Dashboard for Product Launch SuccessMedium

Assesses product sense and metric selection for measuring launch performance.

product metricsdata visualizationdashboard designSoftware Technology
Choosing the Right Statistical TestMedium

Tests statistical reasoning for selecting tests based on data characteristics and goals.

Hypothesis TestingData AnalysisSoftware Technology
Investigating Sudden Retention DropHard

Evaluates root-cause analysis skills for retention metrics and data-driven troubleshooting.

Data Analysisuser retentionSoftware Technology

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