ServiceTitan Data Engineer Interview Questions

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

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SQL & Data ManipulationStart here. 10 questions · ~121 min

Explain how window functions differ from GROUP BY and when to use each in Splice product analysis.

Nested SQL Query WritingMedium

Practice

Use a nested SQL query to find customers whose completed spend exceeds the average completed spend.

business problemcomplex queriessql

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Pipelines6 questions · ~72 min

Compare batch and stream processing across latency, complexity, cost, and data quality in a modern analytics pipeline.

Data Quality and Schema EvolutionMedium

Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.

schema evolutionData ModelingQuality

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Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQuality

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Coding3 questions · ~36 min

Trips and Users CodingHard

Practice

Filter valid users, aggregate daily trip cancellations, and order results using a custom merge sort.

aggregationArraysSorting

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Flatten JSON Into StructureMedium

Practice

Flatten nested JSON objects and arrays into dot-and-index paths using an iterative traversal.

Codingjson parsingData Structures

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Behavioral & Leadership6 questions · ~72 min

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