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Updated weekly · Last refresh Sep 26

DoorDash Business Analyst Interview Questions

The questions to prepare for a DoorDash Business Analyst interview. Questions from real interview reports rank first. Updated daily.

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1
SQL & Data ManipulationStart here. 4 questions + 2 drills · ~55 min
SQL Month-Over-Month RetentionMedium
Practice

Calculate monthly active-user retention for Unity Ads using CTEs, joins, date truncation, and conditional aggregation.

Window FunctionsRetentiontransactionsDoorDash
Optimizing Complex SQL PerformanceHard

Assesses query optimization approach for performance improvements in complex SQL workloads.

Joinsquery optimizationAggregationsDoorDash
Debugging Delivery Volume DiscrepanciesMedium

Tests diagnostic reasoning and SQL/data validation techniques across multiple data sources.

DebuggingDoorDash
Top Merchants Per RegionMedium
Practice
Recently asked
Practice drill

Use aggregation and window functions to identify the three highest-spending merchants within each region.

Window FunctionsJoinssql queryHealth Care ServiceGopuffBBlock/Cash App
Window Functions for Top ItemsMedium
Practice
Recently asked
Practice drill

Rank the three highest-quantity food items for each city and month using PostgreSQL window functions.

Window FunctionsDate FunctionsJoinsDoorDashUberZomato
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2
Behavioral & Leadership7 questions · ~61 min
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3
More topics5 questions · ~44 min
Walk Through the Take-HomeMedium

Assesses your data analysis process, communication, and ability to structure a take-home deliverable.

Data AnalysisassessmentpresentationDoorDash
Measuring Promotion Feature ROIMedium

Assesses metric design, experimentation thinking, and ROI measurement for merchant-facing promotions.

roiDoorDash
Design Inventory Management SolutionHard

Evaluates product thinking and delivery planning for an end-to-end inventory management solution.

project trackinginventory managementDoorDash
Estimating Grocery Order VolumeMedium

Tests structured estimation and reasoning using business and market assumptions.

DoorDash
Prioritizing Deadlines and DeliveryMedium

Tests prioritization, execution discipline, and stakeholder communication under time pressure.

Project ManagementDoorDash

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