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Updated weekly · Last refresh Aug 30

Waymo Data Engineer Interview Questions

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

22questions
~3htotal time
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1
SQL & Data ManipulationStart here. 11 questions + 3 drills · ~118 min
Optimizing Joins on Massive TablesHard
Recently asked

Evaluates join optimization strategies for large-scale SQL workloads.

data relationshipsperformanceWaymo
Optimize Slow SQL QueriesMedium
Recently asked

Tests query tuning skills, including indexing, execution plans, and rewriting strategies.

SubqueriesJoinsAggregationsWaymo
Modeling for New Analytical Use CaseMedium
Recently asked

Assesses end-to-end data modeling approach from requirements to usable analytics.

schema designData ModelingWaymo
Average Vehicle Idle Time by ZoneHard
Practice
Recently asked
Practice drill

Use joins, a CTE, and aggregations to calculate average vehicle idle minutes in a specific geographic zone.

JoinsData ManipulationsqlWaymo
SQL Trips with Safety InterventionsMedium
Practice
Practice drill

Use a join and LAG to find adjacent Waymo trips with safety interventions within a 30-minute gap.

sqlWaymo
Rank Uptime OutliersHard
Practice
Practice drill

Rank Waymo vehicles by daily uptime and identify top-performing outliers using aggregation and DENSE_RANK.

RankingsqlWaymo
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2
Pipelines6 questions · ~48 min
Data Quality in ETL PipelinesEasy
Recently asked

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityWaymo
Optimize Multi-Terabyte ETL PipelineMedium
Recently asked

Explain how you improved a slow ETL pipeline on multi-terabyte data, including bottleneck analysis, tuning choices, and validation.

ETL optimizationdata processingperformanceWaymo
Design Petabyte-Scale Log Streaming PipelineHard
Recently asked

Design a Databricks-native real-time log pipeline processing 1.5-3 PB/day with sub-90-second latency, replayability, and strong data quality controls.

InfrastructureStream ProcessingQualityWaymo
Petabyte-Scale Driving Log PipelineHard
Recently asked

Assesses pipeline architecture for petabyte-scale data processing.

data pipelinedata processingscalabilityWaymo
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3
Behavioral & Leadership5 questions · ~40 min
Owning a Pipeline Performance FixMedium
Recently asked

Tests ownership in diagnosing and fixing a slow data pipeline, with emphasis on root-cause analysis, communication, and measurable impact.

data pipelinesOwnershipPrioritizationWaymo
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The finish line: interview-readyComplete all 22 questions plus 3 hands-on drills to finish this plan.