The Models Going Stale
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
Account and transaction activity arrives at about 50,000 events per second and feeds roughly 800 features behind 12 loan risk models. Design the pipeline and stores that serve those features to live scoring of 200 applications per second, keep their history for retraining, and record what each score used.
Summary
The model is only as good as what you feed it.
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