Every Version of You
A medium Pipeline Design mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- Pipeline Design
- Difficulty
- medium
- Seniority
- mid
Interview Prompt
A retail bank rebuilds its customer dimension every night from a 400M-row account-state extract, versioning each account's history. The on-call data engineer keeps watching that run blow past 7am on nights a few corporate accounts churn millions of changes. Design the nightly pipeline she can trust to land on time.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Draw your pipeline on the design canvas: sources, transforms, storage and checks
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision