Thirty Cities, One Forecast
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
- L5
Interview Prompt
Our operations team runs a bike-share network across dozens of cities. We want to predict hourly demand at each station so we can pre-position bikes before rush hour. The data comes from multiple city systems and external sources in different formats. Design a pipeline that takes in this raw data and produces reliable, model-ready features.
Summary
Five cities. Five data formats. One prediction.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your pipeline design solution with real code execution
- Get instant feedback and a hire/no-hire decision