Design DoorDash Marketplace Experiments

Company: DoorDash

Role: Data Scientist

Category: Analytics & Experimentation

Difficulty: hard

Interview Round: Onsite

Quick Answer: This question evaluates a data scientist's competency in experiment and quasi-experiment design, causal inference, metric definition, and judgment about multi-sided marketplace trade-offs including customer trust, ad revenue versus restaurant ROI, cannibalization, and cross-unit spillovers.