Ad Simulation Platform Pipeline

A hard Pipeline Design mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain

Pipeline Design

Difficulty

hard

Seniority

senior, staff

Interview Prompt

We run an ads platform and want to build a simulation system that matches ad inventory (slots) against ad campaigns to answer what-if questions about fill rates, reach, and frequency. Users should be able to configure a simulation, submit it, and explore the results later. A single configuration might run up to 1,000 simulations. Design the data pipeline behind this system.

How This Interview Works

1. Read the vague prompt (just like a real interview)
2. Ask clarifying questions to the AI interviewer
3. Write your pipeline design solution with real code execution
4. Get instant feedback and a hire/no-hire decision