Alibaba Data Scientist Interview Questions

2100+ verified questions, indexed by team and level. Real questions submitted by candidates who completed Alibaba loops in the last 24 months.

About the Alibaba Data Scientist hiring loop

Alibaba uses the P5–P11 ladder. Group-level interviews are common — multiple candidates evaluated against each other. Strong e-commerce + cloud (Alibaba Cloud / Aliyun) focus. Mandarin-primary; some teams English-friendly.

Data Science rounds score on statistical rigour, metric definition quality, SQL fluency, framework clarity for case studies, and communication of uncertainty. Companies weight experimental design vs ML modelling differently.

Topics covered in Alibaba Data Scientist interviews

  • 01Probability + statistics (hypothesis tests, A/B testing, p-values)
  • 02SQL fluency under time pressure
  • 03Machine learning fundamentals (bias-variance, regularisation, evaluation metrics)
  • 04Experimental design (sample size, power, interference)
  • 05Analytical case studies with metric definition
  • 06Stakeholder communication of statistical results

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