Santander Data Scientist Interview Questions
The questions to prepare for a Santander Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Compute the probability that the sum of two fair dice is greater than 8 by counting favorable outcomes.
SantanderExplain the bias-variance tradeoff mathematically and how L1 and L2 regularization change model complexity and weights.
SantanderClassify customer reviews as positive, negative, or neutral using a practical NLP pipeline.
SantanderCompare pre and post campaign conversion rates by customer signup cohort using joins, a CTE, conditional aggregation, and date intervals.
SantanderDesign an incrementality experiment for a co-branded card campaign, including lift metric, power, guardrails, and launch criteria.
SantanderDiagnose a post-release KPI drop by separating instrumentation issues from real behavior changes and tracing the problem through the metric hierarchy.
SantanderAssesses your ability to evaluate classifiers with threshold-independent metrics relevant to banking.
SantanderEvaluates your end-to-end reasoning for data-driven site selection for a bank expansion decision.
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Analyze weekly service delivery performance by team using joins, a CTE, date aggregation, and KPI calculations.
Deloitte
ReputationCompute daily active users and a 7-day rolling average using a CTE, distinct counts, and window functions.
Meta
Spotify
Meta IT