Top 25
Prep plan
Updated weekly · Last refresh Aug 30

Box Data Engineer Interview Questions

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

25questions
~4htotal time
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1
SQL & Data ManipulationStart here. 5 questions + 2 drills · ~64 min
Top Customers by Sales RevenueEasy
Practice

Use GROUP BY and SUM to rank the top 10 customers by total revenue from a single sales table.

RankingGroup ByAggregationsBox
OLTP vs OLAP Database DesignMedium

Explain OLTP vs OLAP designs, including schema shape, workload patterns, and when each is appropriate in a data platform.

financial dataperformanceData ModelingBox
Improving Query PerformanceHard

Tests your query optimization techniques and performance troubleshooting for Box-scale data.

Window FunctionsJoinsAggregationsBox
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
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
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2
Pipelines12 questions · ~105 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityBox
Optimize Multi-Terabyte ETL PipelineMedium

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

ETL optimizationdata processingperformanceBox
Design Scalable Pipeline InfrastructureHard

Design the core pipeline infrastructure for a new project, with attention to orchestration, data quality, idempotency, and future scale.

InfrastructureToolsQualityBox
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3
Coding3 questions · ~26 min
Error Handling in Data ScriptsEasy

Tests your practical coding skills for robust error handling in data processing workflows.

RecursionHash TablesStringsBox
Deduplicating Records in CodeMedium

Tests your ability to write correct deduplication logic for data pipelines at Box.

Hash TablesArraysSortingBox
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4
Behavioral & Leadership5 questions · ~44 min
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The finish line: interview-readyComplete all 25 questions plus 2 hands-on drills to finish this plan.