Top 27
Prep plan
Updated weekly · Last refresh Oct 17

ING Data Scientist Interview Questions

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

27questions
~4htotal time
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1
SQL & Data ManipulationStart here. 6 questions · ~56 min
Top Spending Categories QueryMedium
Practice

Use a CTE, join, date filters, and aggregation to find ING's top three spending categories among recently active users.

Joinssql queriesING
Rolling Average with SQL WindowsMedium
Practice

Calculate each active RpmGlobal Enterprise Planning user's 30-day rolling average of daily activity.

ING
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2
A/B Testing & Experimentation5 questions · ~47 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 TestingING
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3
Product Sense5 questions · ~47 min
Define Savings Feature SuccessMedium

Define success for a feature meant to increase member savings behavior.

Feature PrioritizationUser NeedsValue PropositionING
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4
Behavioral & Leadership5 questions · ~47 min
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5
More topics6 questions · ~56 min
Analyze New Feature EngagementMedium

Assess a new feature using adoption, activation, repeat usage, and retention metrics tied to user value.

Leading IndicatorsA/B TestingEngagement MetricsING
Feature Suitability for Linear ModelingMedium

Tests your understanding of when linear modeling assumptions and representations do not fit the data.

model selectionING
Assessing Statistical SignificanceMedium

Tests your ability to validate results statistically and avoid misleading conclusions.

Data AnalysisStatistical SignificanceING
Define Success for a New FeatureEasy

Define the right metrics to judge whether a new product feature is successful.

KPIsConversion RateLeading IndicatorsING
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