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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
POS terminals in 600 stores write each day's sales to S3 as one file per store after close, and the Snowflake warehouse loads those files overnight. Design a pipeline that lands each sale in the warehouse within minutes instead.
Summary
Every swipe lands in the warehouse. The table has to stay current without breaking.
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