Top 33
Prep plan
Updated weekly · Last refresh Sep 22

Globallogic Data Scientist Interview Questions

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

33questions
~5htotal time
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1
Model EvaluationStart here. 3 questions · ~25 min
Choosing Business Aligned Evaluation MetricsMedium

Explain how to select evaluation metrics based on business costs, error tradeoffs, threshold behavior, and score calibration.

F1 ScorePrecisionAUC-ROCGloballogic
Measure AI Model PerformanceEasy

Explain how to evaluate an AI model using the right metrics and how metric choice depends on the business goal.

PrecisionAccuracyRecallGloballogic
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2
Machine Learning4 questions · ~33 min
Time Series Feature EngineeringMedium

Design lag, rolling, and calendar features for a forecasting problem with temporal dependence.

Feature EngineeringSupervised LearningTime SeriesGloballogic
Bagging vs Boosting ExplainedMedium

Explain how bagging and boosting differ, and identify a representative algorithm for each ensemble method.

Ensemble Methodsmodel trainingSupervised LearningGloballogic
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3
Pipelines3 questions · ~25 min
Data Cleaning in ETL PipelinesEasy

Approach for cleaning and preparing raw data inside an ETL pipeline.

Data WranglingETLQualityGloballogic
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4
Behavioral & Leadership19 questions · ~159 min
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5
More topics4 questions · ~33 min
Web Fundamentals: URL to RESTMedium

Assesses foundational web knowledge relevant to data and ML systems integration.

web technologiesGloballogic
Designing an End-to-End ML SystemHard

Tests your system design skills across data, modeling, deployment, and operational considerations.

system designproduction deploymentml inferenceGloballogic
Optimizing Slow SQL QueriesHard
Practice

Optimize a PostgreSQL transaction query that filters, aggregates, ranks, and returns top merchants efficiently on large tables.

Performance Tuningdatabase optimizationlarge datasetsGloballogic
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Hands-on SQL practiceWrite and run real queries in the editor. 2 drills · ~20 min
The finish line: interview-readyComplete all 33 questions plus 2 hands-on drills to finish this plan.