This question evaluates ownership, technical leadership, system design, and operational reliability by requiring an end-to-end deep dive into an infrastructure project covering problem definition, architecture, scaling (QPS, latency, storage), SLOs, incident response, and impact metrics.

You are interviewing for a Software Engineer role. The interviewer will ask you to walk through the most impactful infrastructure project on your resume. Prepare a structured deep dive that covers the end-to-end problem, design, operations, and impact.
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