The Migration That Cannot Break Morning
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 data platform grew on-premises over many years, and the business is moving all of it to the cloud while the morning reports keep running every day. Design an architecture for the migration itself, where the on-prem pipelines and their cloud replacements run side by side, their outputs are reconciled before anything switches over, and any single pipeline can be pointed back to on-prem if its cloud version misbehaves.
Summary
It all works today. Moving it without losing a single report is the hard part.
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