JPMorgan Data Scientist Interview Questions
The questions to prepare for a JPMorgan Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Aggregate posted transactions by customer and date, then calculate each customer's rolling 30-day transaction total.
Find each user's longest consecutive login streak by deduplicating login dates and identifying gaps between days.
ByteDanceCalculate each user's seven-day rolling average of daily events using PostgreSQL window functions.
GoogleIdentify the major pitfalls in mobile game A/B tests and explain how to design around them before making a ship decision.
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Explain a machine learning project you led, from problem framing through model evaluation and deployment.
Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
Tests adaptability and ownership when handling a difficult situation, including judgment, actions, outcomes, and lessons learned.
Tests conflict resolution in a delivery context, including communication, influence without authority, and ability to preserve team trust while reaching a decision.