Amex Data Scientist Interview Questions
The questions to prepare for a Amex Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Design an incrementality test for a new customer marketing campaign with explicit MDE, guardrails, power, and rollout criteria.
AmexExplain how feature engineering improves supervised models and how to choose useful transformations.
AmexExplain what statistical significance means and why it matters when interpreting experimental or analytical results.
AmexDefine a success metric for a new feature that captures real user value, not just raw usage.
AmexTests SQL window function skills for time-based customer analytics.
AmexFind the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.
JPMorganChase
Silicon Valley Bank
NaviCalculate the monthly spending trends for customers using window functions and joins.
The Home Depot
Aviso
World Wide TechnologyAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin MooreDiagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.
AmexExplain what cross-validation is and why it matters when choosing between models.
AmexTests practices for repeatable, auditable analysis pipelines and documentation.
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