Datadog Data Scientist Interview Questions

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

50questions

~7htotal time

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SQL & Data ManipulationStart here. 5 questions · ~44 min

Calculate each Datadog customer account's rolling 7-day telemetry ingestion average using daily aggregation and window functions.

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A/B Testing & Experimentation11 questions · ~96 min

Design an experiment with clear metrics, MDE, power, randomization, guardrails, and a pre-registered analysis plan.

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Product Sense8 questions · ~70 min

Metrics for Smart Tool PlatformMedium

Define a metric framework for a smart tool platform that captures adoption, engagement, and retention in a way that reflects real user value.

MetricsUser NeedsProduct Vision

Datadog

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Metrics3 questions · ~26 min

Diagnose a Metric Drop After LaunchMedium

Investigate why a key KPI moved the wrong way after a product change and separate signal from noise.

Lagging IndicatorsLeading IndicatorsDiagnosis

Datadog

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Machine Learning7 questions · ~61 min

Supervised vs Unsupervised LearningEasy

Tests core ML understanding and ability to explain concepts accurately.

Unsupervised LearningFeature EngineeringSupervised Learning

Datadog

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Statistics & Probability9 questions · ~78 min

False Discovery Rate ControlHard

Tests your ability to control error rates in large-scale multiple hypothesis testing.

Datadog

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