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Lantern Interview Questions

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

50questions
~7htotal time
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1
PipelinesStart here. 14 questions · ~114 min
Data Quality and Schema EvolutionMedium

Approach for handling schema changes and data quality checks in a high-volume data lake pipeline.

schema evolutionData ModelingQualityLLantern
Cloud Platform Experience for PipelinesMedium

Describe practical experience building pipelines on AWS, including orchestration, security, and data quality.

InfrastructureETLData ModelingLLantern
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2
SQL & Data Manipulation7 questions + 3 drills · ~87 min
3
Sales & Customer6 questions · ~49 min
Walking Through Your Largest DealMedium

Tests end-to-end deal strategy, execution, and impact in large enterprise or strategic wins.

performance metricsLLantern
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4
System Design4 questions · ~32 min
Cloud Platform Architecture ReviewMedium

Tests your ability to explain system architecture decisions and operational considerations.

system designexperiencecloud architectureLLantern
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5
Coding7 questions · ~57 min
Optimize for High ConcurrencyHard

Tests your performance engineering skills under concurrency and your understanding of bottlenecks.

performanceoptimizationconcurrencyLLantern
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6
Behavioral & Leadership10 questions · ~81 min
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7
More topics2 questions · ~16 min
Debugging Production Performance BottlenecksMedium

Tests your production debugging approach and ability to isolate and fix performance issues.

performanceDebuggingproductionLLantern
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The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.