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Updated weekly · Last refresh Aug 30

Quantori Software Engineer Interview Questions

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

40questions
~6htotal time
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1
CodingStart here. 20 questions + 1 drill · ~188 min
Implement Core Data StructuresEasy
Practice

Implement an LRU cache using a hash map and doubly linked list with O(1) get and put operations.

Data StructuresTreesQuantori
Python Memory Management ExplainedEasy

Explain how Python manages memory using reference counting, garbage collection, and object allocation.

Hash TablesArraysStringsQuantori
SQL Coding Question CountMedium
Practice
Practice drill

Count 0 and 1 sensor readings by Bosch building using a CTE, LEFT JOIN, and conditional aggregation.

CodingpythonBosch Building Technologies
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2
SQL & Data Manipulation3 questions + 2 drills · ~47 min
SQL With Subqueries And GroupingMedium

Assesses SQL skills for aggregating complex datasets with subqueries and grouping.

SubqueriessqlQuantori
Design Schema For Integrity And PerformanceHard

Assesses database design skills for correctness and efficient querying.

performancedatabase designdata integrityQuantori
SQL Bookstore Schema PracticeEasy
Practice
Practice drill

Use a CTE, joins, and distinct aggregates to calculate Meta Logistics bookstore payment metrics.

sql queriessqlpythonMeta Logistics
SQL for User Session TimeHard
Practice
Practice drill

Use joins, CTEs, and conditional aggregation to calculate user click rates with session start and end timestamps.

pythonThe Nielsen
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3
Behavioral & Leadership13 questions · ~115 min
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4
More topics4 questions · ~36 min
Data Consistency in Distributed SystemsHard

Tests understanding of consistency models, trade-offs, and correctness strategies.

IdempotencyDependenciesData ModelingQuantori
Memory-Intensive Pipeline OptimizationHard

Tests system design skills for optimizing memory usage in large-scale data pipelines.

system designdata processingQuantori
Thread Pool DefinitionMedium

Assesses understanding of concurrency primitives and performance-oriented design.

concurrencyQuantori
Microservice Or API Design ConsiderationsMedium

Assesses system design knowledge for building reliable services and APIs.

system designapi designmicroservicesQuantori

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