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Teknei Interview Questions

The questions to prepare for Teknei interviews, across all roles. Questions from real interview reports rank first. Updated daily.

21questions
~3htotal time
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1
SQL & Data ManipulationStart here. 11 questions + 3 drills · ~118 min
Optimizing Slow PostgreSQL Production QueriesHard

Explain how to diagnose slow PostgreSQL queries in production and choose effective indexing strategies.

Performance Tuningindexesquery optimizationTeknei
Complex SQL Optimization for Large DatasetsMedium

Tests advanced SQL optimization techniques for large-scale analytics workloads.

large datasetsTeknei
Data Quality During EDAMedium

Assesses your approach to diagnosing and mitigating data quality problems during EDA.

Data Qualitydata integrityTeknei
Automating Reporting WorkflowsMedium

Evaluates your ability to reduce manual effort by automating reporting workflows.

efficiencyAutomationTeknei
Scalable Power BI Data ModelsMedium

Tests your design practices for building scalable, maintainable Power BI models.

scalabilitypower biData ModelingTeknei
Microsoft Fabric in a Modern StackMedium

Assesses your ability to connect Fabric capabilities with an end-to-end analytics architecture.

integrationTeknei
Optimizing Power BI ModelsMedium
Practice
Practice drill

Identify the largest Power BI tables and their refresh impact using joins and aggregation.

database optimizationperformance optimizationdatabase managementAdobe
Power BI and SQL Under PressureMedium
Practice
Practice drill

Explain a structured approach to solving a complex SQL and Power BI problem under strict time constraints.

bi toolscomplex queriessqlTiger Analytics
Optimizing Slow SQL QueriesHard
Practice
Practice drill

Optimize a PostgreSQL transaction query that filters, aggregates, ranks, and returns top merchants efficiently on large tables.

Performance Tuningdatabase optimizationlarge datasetsSprinter HealthSentiLinkAutodesk
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2
Behavioral & Leadership9 questions · ~72 min
Explaining a Technical Concept ClearlyEasy

Tests communication, ownership, and stakeholder management when translating technical complexity into actionable business understanding.

Problem SolvingData Structurestechnical fundamentalsTeknei
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3
More topics1 question · ~8 min
The finish line: interview-readyComplete all 21 questions plus 3 hands-on drills to finish this plan.