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Updated weekly · Last refresh Oct 25

ServiceTitan Software Engineer Interview Questions

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

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~12htotal time
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1
CodingStart here. 24 questions · ~353 min
Custom Dictionary Key to Multiple ValuesHard
Practice

Implement a dictionary that maps each key to multiple values with efficient add, lookup, removal, and membership operations.

ArraysabstractionData StructuresServiceTitan
Whiteboard Coding TaskEasy
Practice

Implement a simple whiteboard task that removes duplicate array values while preserving their first-occurrence order.

deduplicationCodingArraysServiceTitan
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2
System Design9 questions · ~132 min
ServiceTitan Dispatch System DesignHard

Design ServiceTitan dispatch that ranks eligible technicians, prevents double-booking, and synchronizes updates across dispatchers and mobile technicians.

ML Rankingbooking logicSchedulingServiceTitan
Vehicle Tracking System DesignHard

Design a real-time vehicle-tracking platform for ingesting, storing, and serving live and historical fleet movement data.

fleet dataedge devicesdata ingestionServiceTitan
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3
Execution4 questions · ~59 min
JavaScript Execution FlowMedium

Determine the exact console output order by tracing synchronous code, promise microtasks, and the setTimeout task queue.

javascriptcode maintainabilityExecutionServiceTitan
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4
Pipelines4 questions · ~59 min
Design ETL Pipeline for Exactly-Once ProcessingHard

Create an ETL pipeline ensuring exactly-once processing semantics for high-volume transactional data in a financial services application.

InfrastructureETLData ModelingServiceTitan
Kafka for Data ProcessingMedium

Evaluates your practical understanding of Kafka and how you use it in data pipelines.

kafkadata processingServiceTitan
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5
Behavioral & Leadership7 questions · ~103 min
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6
More topics2 questions · ~29 min
LINQ with Select, OrderBy and TakeEasy
Practice

Translate a LINQ-style selection, ordering, and limit operation into a PostgreSQL query.

Data Manipulationdatabase queryingServiceTitan
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.