Delivery Hero India Data Scientist Interview Questions
The questions to prepare for a Delivery Hero India Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Design a recommendation and ranking system that handles cold start for both new users and new items without hurting feed quality.
Tests evaluation trade-offs and metric reasoning for fraud detection systems.
Evaluates core statistical and ensemble-learning concepts relevant to feature modeling.
Tests hands-on SQL and Python data manipulation under interview conditions.
Find the top 10 Delivery Hero users by completed-order frequency using joins, aggregation, and calendar-month filtering.
Use ROW_NUMBER to return each student's second score on a specified Khan Academy exercise.
Khan AcademyAggregate completed Shopify sales and admin logins by merchant and month using CTEs, LEFT JOIN, and conditional logic.
ShopifyIdentify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
Explain what statistical significance means and why it matters when interpreting experimental or analytical results.
Outline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
Tests metric design and experimental thinking for ranking and search improvements.
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