One Bill Across Three Clouds
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
For thousands of enterprise customers, AWS sends hourly CSV cost reports, Azure a daily JSON export, and GCP a near-real-time stream, each in its own schema. How would you design a pipeline that unifies these into a consistent cost analytics layer and alerts our account managers when any managed account is trending toward a budget breach?
Summary
AWS, Azure, GCP. Three bills. One truth.
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