Your question is Mitigating Data Pipeline Bottlenecks. 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).
How do you identify and mitigate bottlenecks in a data pipeline processing millions of daily marketplace transactions?
Explain how you would diagnose performance constraints, distinguish systemic issues from isolated failures, and prioritize remediation. Cover stakeholder coordination, production safeguards, trade-offs between throughput, latency, reliability, and cost, and how you would measure whether the mitigation worked.