Dataford
Top 16
Prep plan
Updated weekly · Last refresh Aug 30

Vast Software Engineer Interview Questions

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

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1
ExecutionStart here. 5 questions · ~40 min
Refactoring for ScalabilityMedium

Assesses your engineering judgment and impact when modernizing legacy systems.

refactoringscalabilitylegacy systemsVast
Data Integrity With Heterogeneous APIsMedium

Assesses your strategies for validation, normalization, and correctness across varied data sources.

apicomplex systemsdata integrityVast
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2
System Design4 questions · ~32 min
Data Model for Spacecraft Time SeriesMedium

Tests your ability to model high-volume telemetry data for efficient storage and retrieval.

sensor dataData ModelingTime SeriesVast
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3
More topics7 questions · ~56 min
Telemetry Data Pipeline ArchitectureMedium

Assesses your approach to designing reliable telemetry ingestion, processing, and delivery pipelines.

pipeline designdata processingtelemetryVast
Low-Latency Memory ManagementMedium

Evaluates your understanding of performance-focused memory management techniques.

memory managementInfrastructurelow latencyVast
Database Architecture Trade-offsMedium

Tests your ability to choose and justify database architectures for high availability requirements.

Trade-offshigh availabilitydatabase architectureVast
Pairwise Testing ExplanationMedium

Evaluates your ability to explain a testing strategy and apply it with a concrete example.

TestingVast
Scalable Telemetry Pipeline DesignMedium

Tests your ability to scale telemetry pipelines for throughput, latency, and reliability.

data pipelinescalabilitytelemetryVast
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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
SQL Duplicate Record DetectionEasy
Practice
Practice drill

Find duplicate American Institutes for Research assessment submissions using a CTE, GROUP BY, HAVING, and joins.

deduplicationsqldata integrityAmerican Institutes for ResearchMacy's
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
The finish line: interview-readyComplete all 16 questions plus 3 hands-on drills to finish this plan.