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Anduril Industries Data Engineer Interview Questions

The questions to prepare for a Anduril Industries Data Engineer interview. Questions from real interview reports rank first. Updated daily.

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1
CodingStart here. 3 questions · ~56 min
Python Coding InterviewMedium
Practice

Deduplicate lifecycle events by ID while preserving the first occurrence and original stream order.

deduplicationCodingData StructuresAnduril Industries
Merge Large Sorted DatasetsHard
Practice

Merge two sorted iterables using one-item lookahead without materializing either input.

CodingArraysSortingAnduril Industries
Flatten Nested Sensor JSONHard
Practice

Recursively flatten Anduril Industries sensor payloads into ordered telemetry rows using path-based traversal.

Hash Tablesapi integrationArraysAnduril Industries
2
More topics4 questions · ~75 min
Top 3 Longest Sessions Per UserMedium
Practice

Find each user's three longest Lattice sessions using duration calculations and ROW_NUMBER().

Window FunctionsRankingGroup ByAnduril Industries
Handle Late-Arriving Data in ETLHard

Design an idempotent daily ETL process that incorporates late-arriving records without duplicating or corrupting historical results.

Data QualityETLBatch ProcessingAnduril Industries
Optimize Slow SQL QueriesHard
Practice

Optimize a complex PostgreSQL analytics query while preserving mission-level aggregation and latest asset status results.

Window Functionsdatabase optimizationJoinsAnduril Industries
Telemetry Pipeline for Drone FleetsHard

Design a resilient streaming pipeline that delivers autonomous-drone telemetry to Anduril Lattice dashboards with low latency and strong data quality.

data pipelineInfrastructureStream ProcessingAnduril Industries

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