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Updated weekly · Last refresh Aug 30

Qlik Software Engineer Interview Questions

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

50questions
~7htotal time
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1
CodingStart here. 24 questions · ~196 min
Optimizing Time and Space ComplexityEasy

Explain how to improve coding solutions by reducing time complexity first, then balancing space trade-offs.

Hash TablesArraysGreedyQlik
Data Structures in Your LanguageMedium

Tests your understanding of data structure trade-offs and when to use each.

Data Structurestechnical fundamentalsprogramming languagesQlik
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2
Execution8 questions · ~65 min
Real-Time Data Streaming DesignHard

Tests your ability to design streaming architectures with correctness, latency, and scalability in mind.

system designstreamingreal-time dataQlik
Testing Distributed SystemsHard

Tests your approach to validating distributed behavior using the right test types and tooling.

distributed systemsTestingstrategyQlik
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3
System Design6 questions · ~49 min
RESTful Design and OptimizationMedium

Assesses your system design trade-offs across REST, concurrency, optimization, and CI.

optimizationQlik
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4
Security & Infrastructure3 questions · ~24 min
bash_profile vs .bashrcEasy

Evaluates your knowledge of shell initialization and environment configuration.

bashQlik
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5
Behavioral & Leadership7 questions · ~57 min
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6
More topics2 questions · ~16 min
Integration Scenario Design ConceptsMedium

Evaluates how you translate integration design concepts into scenario-based execution.

integrationQlik
Assess Relational Database PerformanceMedium

Assesses your ability to diagnose and improve relational database performance.

performancedatabaseQlik
Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
Handle Missing Financial Input ValuesMedium
Practice
Practice drill

Use joins, CTEs, and CASE logic to flag and fill missing financial fields for Qlik planning records.

Data WranglingETLQualityQlik
Pivot Lucid Campaign Performance by MonthMedium
Practice
Practice drill

Use joins, a CTE, CASE expressions, and monthly pivoting to compare Lucid campaign performance across channels.

pivot tablesnull handlingData WranglingLucid Motors
Unify Campaign Performance SourcesMedium
Practice
Practice drill

Use CTEs, joins, aggregations, and CASE logic to combine Salesforce, Marketo, and Google Analytics into one monthly campaign report.

Data WranglingperformanceReconciliationPalo Alto Networks
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.