Top 30
Prep plan
Updated weekly · Last refresh Oct 17
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Brandwatch Data Scientist Interview Questions

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

30questions
~4htotal time
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1
A/B Testing & ExperimentationStart here. 7 questions · ~61 min
Design Test for New FeatureMedium

Design an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.

experiment designfeature evaluationA/B TestingBBrandwatch
Power Analysis for Survey ExperimentHard

Determine sample size and power for a customer survey or experiment, including MDE, guardrails, and a disciplined decision rule.

MDEPower AnalysisSample SizeBBrandwatch
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2
Product Sense7 questions · ~61 min
Measure New Dashboard Feature SuccessMedium

Define a framework to measure whether a new observability dashboard feature is delivering real value and sustained adoption.

Feature PrioritizationUser NeedsProduct VisionBBrandwatch
Define Metrics for New FeaturesMedium

Define a success metric for a new feature that captures real user value, not just raw usage.

MetricsFeature Prioritizationuser valueBBrandwatch
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3
SQL & Data Manipulation6 questions + 2 drills · ~72 min
7-Day Rolling Active UsersMedium
Practice

Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.

Window FunctionsDate FunctionsRunning TotalsBBrandwatch
Optimize Large PostgreSQL Query PerformanceMedium

Explain how to tune slow PostgreSQL queries on multi-million-row tables using indexes, execution plans, joins, and partitioning.

Performance Tuningquery optimizationsqlBBrandwatch
Consecutive Activity Days QueryMedium
Practice
Practice drill

Identify each user's consecutive website activity streaks using date arithmetic and SQL window functions.

Window FunctionsDate FunctionsData ManipulationIntuit Management ConsultancyChewySuperhuman
Moving Average of Monthly DefaultsMedium
Practice
Practice drill

Calculate monthly loan defaults and a three-month moving average using PostgreSQL window functions.

Window FunctionsDate Functionsfinancial dataUnited Auto Credit
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4
Statistics & Probability3 questions · ~26 min
Diagnosing a Product Metric DropMedium

Decide whether a metric drop reflects a real shift or normal variation using hypothesis testing, confidence intervals, and baseline variability.

Confidence IntervalsHypothesis TestingStatistical SignificanceBBrandwatch
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5
Behavioral & Leadership6 questions · ~52 min
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6
More topics1 question · ~9 min
Design Engagement Metric for BrandwatchMedium

Assesses metric design for measuring user engagement on Brandwatch.

product metricsuser engagementBBrandwatch
The finish line: interview-readyComplete all 30 questions plus 2 hands-on drills to finish this plan.