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Updated weekly · Last refresh Aug 30

Airwallex Pty Data Scientist Interview Questions

The questions to prepare for a Airwallex Pty Data Scientist interview. Questions from real interview reports rank first. Updated weekly.

50questions
~7htotal time
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1
SQL & Data ManipulationStart here. 7 questions + 2 drills · ~80 min
2
Model Evaluation7 questions · ~60 min
Interpret F1 for Imbalanced ClassificationEasy

Explain why F1 is more informative than accuracy for a fraud model with 97.2% accuracy but only 18% recall on a 1% positive class.

F1 ScorePrecisionRecallAirwallex Pty
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3
Machine Learning7 questions · ~60 min
Customer Segmentation with ClusteringMedium

Segment customers into actionable groups using clustering and engineered behavioral features.

ClusteringFeature EngineeringSupervised LearningAirwallex Pty
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4
Statistics & Probability8 questions · ~69 min
Interpreting P Values in TestingEasy

Explain what a p-value means in hypothesis testing and how it relates to statistical significance.

Hypothesis TestingStatistical SignificanceP-ValuesAirwallex Pty
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5
Product Sense7 questions · ~60 min
Assess Product Market FitMedium

Evaluate whether a product has true product market fit before increasing spend.

Product-Market FitUser ResearchValue PropositionAirwallex Pty
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6
Metrics8 questions · ~69 min
Measure Checkout Funnel Conversion RateEasy

Define overall and step-level funnel conversion for an e-commerce checkout flow and explain how to diagnose where drop-off occurs.

Funnel AnalysisKPIsConversion RateAirwallex Pty
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7
More topics6 questions · ~52 min
Data Quality in ETL PipelinesEasy

Approach for maintaining data quality and integrity across ETL pipelines.

IdempotencyData ModelingQualityAirwallex Pty
Evaluate A/B Results and TrafficHard

Tests experiment evaluation, traffic sizing, and quasi-experimental comparison when A/B is skipped.

MetricsAirwallex Pty
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The finish line: interview-readyComplete all 50 questions plus 2 hands-on drills to finish this plan.