Your question is Designing a Complex Pipeline. Take a moment with it on the right.
Talk me through your thinking if you like. When you're confident, submit your answer and I'll grade it like a real screen (7/10 or better passes).
Describe a complex data pipeline or reporting system you have built in detail, explaining your choice of tools and architecture.
Walk through the end-to-end data flow, including ingestion, transformation, storage, orchestration, serving, data quality, monitoring, and failure recovery. Explain important design trade-offs, how you handled changing requirements or schemas, and how you validated that the system met its reliability and performance goals.