Block/Cash App Data Engineer Interview Questions
The questions to prepare for a Block/Cash App Data Engineer interview. Questions from real interview reports rank first. Updated daily.
Use aggregation and window functions to identify the three highest-spending merchants within each region.
Aggregate sales by category and return the three highest-performing categories.
Rank the top 3 completed rides per vehicle per day using joins, a CTE, and ROW_NUMBER.
Waymo
CruiseApproach for adding data quality checks, observability, and production monitoring to a data pipeline.
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Tests ownership, prioritization, and leadership under ambiguity through a candidate's hardest project.
Tests ownership of data quality issues, risk communication to leadership, and stakeholder management under business pressure.