Pelmorex Interview Questions
The questions to prepare for Pelmorex interviews, across all roles. Questions from real interview reports rank first. Updated daily.
Calculate a three-day moving average of active-client revenue using aggregation and SQL window functions.
Calculate total completed session duration per user and return the top three users in PostgreSQL.
Explain how to profile, clean, and standardize missing or dirty data before analysis.
Rank the top 3 completed rides per vehicle per day using joins, a CTE, and ROW_NUMBER.
WaymoIdentify the main pitfalls that can distort A/B test interpretation and explain how to guard against them.
Investigate a 15% engagement decline by decomposing the metric, isolating root causes, and proposing actions.
A framework for prioritizing AI product features based on user value, feasibility, evaluation quality, and trade-offs.
Approach for allocating a constrained marketing budget across channels and objectives using ROI, trade-offs, and prioritization.
Explain dependency injection, why it improves testability, and where to use it in a mobile app.
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