The Revenue That Was Wrong for Two Weeks
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 transformation layer has grown to over 200 models, and we're seeing silent data quality failures slip into production reports. The data team wants a pipeline design that enforces quality gates, prevents bad models from promoting downstream, and gives analysts confidence in the output. Design the pipeline.
Summary
Nobody caught it until the CFO asked a question. Design the system that catches it first.
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