The User Who Asked to Be Forgotten
A hard 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
- hard
- Seniority
- L7
Interview Prompt
Design the end-to-end pipeline that turns listener events from mobile, web and smart-speaker clients into dashboards showing hourly and daily engagement metrics. The events arrive as one continuous stream of about 50,000 per second.
Summary
Users want their data erased. Completely.
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