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Updated weekly · Last refresh Oct 17

Quest Software Software Engineer Interview Questions

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

35questions
~5htotal time
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1
CodingStart here. 14 questions · ~120 min
Linked List ReversalEasy
Practice

Reverse a singly linked list in-place using iterative pointer manipulation.

RecursionLinked ListsArraysQuest Software
Predict Steps for PancakesHard

Evaluates your algorithmic intuition and ability to derive results without brute force.

Problem SolvingQuest Software
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2
SQL & Data Manipulation6 questions + 3 drills · ~81 min
SQL and Databases BreadthMedium

Evaluates your breadth of SQL and database concepts used in production systems.

sqldatabasesQuest Software
SQL Joins and LookupsMedium

Assesses your understanding of SQL data retrieval patterns and relationships.

JoinsQuest Software
Clarify and Solve JS Array TaskMedium
Practice
Practice drill

Translate an underspecified array transformation into a precise PostgreSQL result while preserving element order and handling nulls.

javascriptJoinsData ManipulationSamba TV
SQL and Data StructuresMedium
Practice
Practice drill

Aggregate completed PlayStation Store purchases and return accounts with at least two qualifying purchases.

JoinsCTEsData StructuresPlayStation
SQL Data Structure ReviewHard
Practice
Practice drill

Audit PostgreSQL metadata for missing or invalid keys and tables with inefficient sequential-scan patterns.

database optimizationindexesData StructuresMercury
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3
Technical Fundamentals6 questions · ~51 min
Linked List vs Array TradeoffsMedium

Tests ability to reason about performance, memory, and complexity tradeoffs.

Data StructuresQuest Software
Create a Window in QtMedium

Tests practical Qt UI fundamentals and ability to implement basic GUI structure.

technical discussionQuest Software
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4
Behavioral & Leadership6 questions · ~51 min
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5
More topics3 questions · ~26 min
SOLID and Fan-In Fan-OutMedium

Evaluates your system design thinking and ability to apply design patterns in cloud architectures.

solid principlesQuest Software
Architecture Scaling and BottlenecksHard

Tests system design and performance troubleshooting for enterprise-scale applications.

performancescalabilityarchitectureQuest Software
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The finish line: interview-readyComplete all 35 questions plus 3 hands-on drills to finish this plan.