Behavioral Deep Dive: Most Impactful Infrastructure Project
Context
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.
Please cover the following:
-
Problem statement, constraints, stakeholders, and success metrics.
-
High-level architecture, key components, data model, and critical algorithms/APIs.
-
Scale numbers (QPS, latency, storage), SLOs, and capacity planning.
-
The most serious incident/failure — what happened, how you mitigated it, and postmortem learnings.
-
Quantified results and what you would change if given three more months.