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Updated weekly · Last refresh Sep 23

UKG Data Scientist Interview Questions

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

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1
Machine LearningStart here. 3 questions · ~27 min
Handle Highly Imbalanced ClassificationMedium

Build a classifier for a rare-event problem and choose metrics and training tactics that work when positives are scarce.

Cross-ValidationFeature EngineeringSupervised LearningUKG
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2
SQL & Data Manipulation5 questions + 1 drill · ~55 min
Filtering Rows in SQLMedium

Tests your ability to write correct SQL for selecting relevant rows.

UKG
Top-N Per Department with Window FunctionsMedium
Practice
Practice drill

Use DENSE_RANK to identify the three highest-paid UKG employees in each department, including salary ties.

Window FunctionsJoinsRankingUKG
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3
Behavioral & Leadership7 questions · ~62 min
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4
More topics11 questions · ~98 min
Design Test for Novelty and SpilloversHard

Design an experiment that accounts for novelty effects and network spillovers before deciding whether to ship.

Network InterferenceExperimentationNovelty EffectUKG
Diagnose KPI Drop After ReleaseMedium

Diagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.

KPILeading IndicatorsDiagnosisUKG
Design Feature Drift Monitoring SystemHard

Design a production ranking system with robust feature drift monitoring across batch and real-time features at high QPS.

Feature StoreFeature DriftModel ServingUKG
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityUKG
People Analytics MotivationMedium

Assesses your product motivation for applying data science to workforce understanding at UKG.

interestUKG
Sample Size for Low-Frequency EventsHard

Tests power analysis and sample size estimation for rare event experimentation.

experiment designPower AnalysisSample SizeUKG
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The finish line: interview-readyComplete all 26 questions plus 1 hands-on drill to finish this plan.