Safaricom Data Scientist Interview Questions
The questions to prepare for a Safaricom Data Scientist interview. Questions from real interview reports rank first. Updated daily.
Compute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
SafaricomStandardize missing observation fields with fallback values, missingness flags, and ordered output.
Eversource Energy
Cincinnati Children's Hospital
Adtalem Global EducationExplain how to train and evaluate models on highly imbalanced fraud data without relying on misleading accuracy.
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Define a success metric for a new feature that captures real user value, not just raw usage.
SafaricomDiagnose why conversion fell from 4.8% to 3.1% after a launch by breaking the metric across funnel steps, cohorts, and segments.
SafaricomIdentify major online experiment pitfalls and explain how they can bias results in a streaming product A/B test.
SafaricomTests deep understanding of transformer mechanics for NLP modeling.
SafaricomEvaluates ability to prepare data reliably for downstream modeling and production use.
SafaricomTests offline evaluation, validation strategy, and readiness checks for production models.
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