Tell me about a time you found that infrastructure was not the real bottleneck.

Instruction: Answer this as a story about locating the true bottleneck in a serving system.

Context: Evaluates whether the candidate can communicate judgment, collaboration, and ownership in a real setting. Answer this as a story about locating the true bottleneck in a serving system.

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One example I would use is this: In one product, the first reaction to user complaints was to blame model serving because the responses felt slow. When we traced the workflow, the actual bottleneck was repeated retrieval and routing work that happened before and between model calls....

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