Wish Data Scientist Interview Questions
The questions to prepare for a Wish Data Scientist interview. Questions from real interview reports rank first. Updated weekly.
Design a marketing campaign experiment with a pre-registered metric plan, power calculation, and ship rule that respects guardrails.
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Diagnose why conversion fell from 4.8% to 3.1% after a launch by breaking the metric across funnel steps, cohorts, and segments.
WishEvaluates your breadth across SQL, experimentation, and data infrastructure optimization problem solving.
WishFind the top 3 customers in each region by transaction volume using joins, aggregation, and window ranking.
JPMorganChase
Silicon Valley Bank
NaviCalculate Wish daily active users and next-day churn with deduplication, CTEs, joins, and date aggregation.
WishRank the top 3 completed rides per vehicle per day using joins, a CTE, and ROW_NUMBER.
WaymoAssesses your SQL fundamentals and product sense reasoning in case-style questions.
WishExplain what a p-value means in hypothesis testing and how it relates to statistical significance.
WishExplain how to evaluate a regression model with RMSE and MAE, and how to interpret the tradeoff between average and large errors.
WishEvaluate when a pipeline should use stream processing versus scheduled batch based on latency, cost, complexity, and data quality needs.
Wish