Every Device Has Its Own Dialect
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
- L5
Interview Prompt
Our fitness platform receives workout and health events from connected devices, a mobile app, and third-party integrations. Events arrive in multiple formats at different cadences, with different schema versions across device firmware generations. Design the ingestion pipeline that normalizes these into a unified event store.
Summary
Three sources. Three formats. Same workout.
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