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Updated weekly · Last refresh Aug 30

OWKIN Research Scientist Interview Questions

The questions to prepare for a OWKIN Research Scientist interview. Questions from real interview reports rank first. Updated weekly.

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1
CodingStart here. 4 questions · ~36 min
Implementing K-Means ClusteringMedium
Practice

Implement Lloyd's k-means algorithm to cluster 2D points by iteratively updating centroids.

MathArraysSortingOWKIN
Explain Time Complexity of Array SearchEasy

Explain how to analyze the time complexity of a common array search solution and justify the Big O result.

MathArraysSearchingOWKIN
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2
Machine Learning5 questions · ~45 min
Supervised vs Unsupervised LearningEasy

Explain how supervised and unsupervised learning differ, and ground the distinction in a practical ML example.

Unsupervised LearningFeature EngineeringBias-Variance TradeoffOWKIN
Feature Selection TechniquesMedium

Tests feature selection strategy and understanding of bias-variance tradeoffs.

Cross-ValidationFeature EngineeringRegularizationOWKIN
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3
Behavioral & Leadership8 questions · ~72 min
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4
More topics5 questions · ~45 min
Model Performance EvaluationEasy

Tests your ability to select metrics, validation strategy, and interpret results for ML models.

PrecisionAccuracyRecallOWKIN
Clinical Document Retrieval PipelineHard

Tests your ability to design and validate retrieval and ranking systems for OWKIN's clinical data workflows.

ML RankingRetrievalRecommendation SystemsOWKIN
RAG for Medical Q&A SafetyHard

Tests your ability to build safe, reliable LLM workflows for medical literature at OWKIN.

HallucinationPrompt EngineeringRAGOWKIN
Apply Statistical MethodsMedium

Tests your ability to use statistics to drive decisions and validate results.

ExperimentationRegressionCausal InferenceOWKIN
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