Luxoft India Data Scientist Interview Questions
The questions to prepare for a Luxoft India Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Approach for maintaining data quality and integrity across ETL pipelines.
Luxoft IndiaDefine a success metric for a new feature that captures real user value, not just raw usage.
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Choose the best metric for a business goal and explain the trade-offs between precision, recall, F1, and threshold choice.
Luxoft IndiaExplain how the bias-variance tradeoff guides algorithm selection and generalization performance.
Luxoft IndiaDesign an A/B test for a new platform feature, including success metrics, power, guardrails, and a clear ship decision.
Luxoft IndiaExplain how to profile, clean, and standardize missing or dirty data before analysis.
Luxoft IndiaFind the second highest salary in each department without using aggregate functions.
Credit Genie
Devoteam
Cisco Restaurant + BarAggregate monthly sales totals by product category using JOINs, GROUP BY, and date formatting.
Walgreens
Rev
LatentView AnalyticsAggregate monthly sales by product category and use LAG to calculate month-over-month changes.
Total Wine & More
Inc.
Benjamin MooreOutline the first checks to diagnose a sudden drop in a core product metric, starting with data quality, scope, and decomposition.
Luxoft IndiaDesign a cloud ML deployment system for a security product, covering training, serving, updates, and production monitoring.
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