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Denali Therapeutics Interview Questions

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

50questions
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1
CodingStart here. 13 questions · ~135 min
2
Machine Learning5 questions · ~52 min
3
System Design6 questions · ~62 min
Design an LLM Serving PlatformHard

Design an LLM serving system that balances latency, cost, scalability, and safety for production traffic.

Cold StartFeature StoreModel ServingDenali Therapeutics
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4
Execution5 questions · ~52 min
Choose Monolith or MicroservicesMedium

Evaluate the execution trade-offs between monoliths and microservices and explain how you would choose the right approach.

Trade-offsRisk AssessmentScope ManagementDenali Therapeutics
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5
Pipelines4 questions · ~42 min
Optimize a Pipeline BottleneckMedium

Explain how you identified and fixed a bottleneck in a data pipeline while preserving correctness and operational visibility.

data processingperformancebottleneck optimizationDenali Therapeutics
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6
Statistics & Probability4 questions · ~42 min
Handling Missing ValuesHard

Assess missingness mechanisms, choose defensible treatments, and test sensitivity to deletion or imputation.

SamplingExperimentationBiasDenali Therapeutics
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7
More topics13 questions · ~135 min
Analyzing Missing Values in Clinical DataMedium

Explain how to profile, quantify, and handle missing values in joined clinical datasets using SQL.

Data WranglingCase WhenAggregationsDenali Therapeutics
End-to-End Biomedical RAG PipelineHard

Tests your ability to build production-ready RAG systems for biomedical knowledge workflows.

Vector SearchPrompt EngineeringRAGDenali Therapeutics
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Hands-on SQL practiceWrite and run real queries in the editor. 3 drills · ~30 min
The finish line: interview-readyComplete all 50 questions plus 3 hands-on drills to finish this plan.