A 200-engineer growth-stage company has accumulated 53 transforms and 100 dashboards with no shared
A medium 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
- medium
Interview Prompt
A 200-engineer growth-stage company has accumulated 53 transforms and 100 dashboards with no shared layers; three teams compute weekly active users with different numbers. The new head of data engineering wants the smallest set of changes that makes the system operable. Apply every intermediate-tier framing the section taught: shared layered architecture, the right ETL or ELT choice per transform, one orchestrator owning the DAG, freshness cadence visible per source, and the ML branch split downstream of the curated layer.
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