Role tracks

Each track is a short, ordered set of problems built around the archetypes that come up in real data interviews.

• Product / Growth AnalystProduct AnalyticsFunnels, cohorts and metric rollups — the questions product teams ask every week.6 problems
• Analytics / Data EngineerData EngineeringJoins, anti-joins, reshaping and reusable Python utilities for pipelines.6 problems
• Finance / BI AnalystFinancial ModelingWindow functions, rankings, moving averages and multi-metric aggregation.6 problems
• Any data roleInterview Warm-upThe fundamentals every screen starts with: filtering, grouping, lists and frames.6 problems