Real Data, Fake Patients
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
- L6
Interview Prompt
Design a scheduled pipeline that de-identifies PHI from production into a dev object store, replacing stable ids with synthetic tokens from a consistent mapping. The mapping sits in a vault feeding only the de-identification step; an orchestrator runs tables in dependency order through a classification check, writing a per-run audit log retained for years.
Summary
Dev needs production data. HIPAA says absolutely not.
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