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Prep plan
Updated weekly · Last refresh Aug 30

InstaDeep Data Scientist Interview Questions

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

50questions
~7htotal time
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1
Statistics & ProbabilityStart here. 6 questions · ~49 min
2
A/B Testing & Experimentation5 questions · ~41 min
Plan Sample Size for In-App ExperimentMedium

Estimate sample size and power for an experiment, define MDE and guardrails, and decide whether the test is worth running.

MDEPower AnalysisSample SizeInstaDeep
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3
Metrics3 questions · ~25 min
Design Feature Success MetricsMedium

Define one primary feature metric and a set of guardrails that capture user value without missing broader product risk.

North Star MetricKPIsGuardrail MetricsInstaDeep
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4
Machine Learning12 questions · ~99 min
Handling Missing Data in MLMedium

Explain practical strategies for handling missing data and how to validate that the chosen approach improves model performance.

Feature EngineeringData WranglingSupervised LearningInstaDeep
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5
Product Sense4 questions · ~33 min
Prioritize With Limited ResourcesMedium

Framework for deciding what to build first when resources are constrained and trade-offs are unavoidable.

Feature PrioritizationUser NeedsMVPInstaDeep
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6
Model Evaluation3 questions · ~25 min
Improve Predictive Model AccuracyMedium

Assess why a predictive model is missing accuracy targets and identify changes that would improve it.

Cross-ValidationAccuracyThreshold TuningInstaDeep
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7
More topics17 questions · ~140 min
Design a Real-Time ML Feature StoreHard

Design a shared feature store for training and low-latency inference across many ML systems with strict freshness and consistency needs.

Feature StoreFeature DriftModel ServingInstaDeep
Real-Time Dashboard Pipeline DesignHard

Approach for building near-real-time dashboard pipelines with streaming, orchestration, and data quality controls.

Stream ProcessingSchedulingDependenciesInstaDeep
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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.