System Design Interview Guide

A visual, no-fluff path to senior engineering interviews — diagrams, step-through animations, estimation drills, and quizzes.

This isn't about memorizing architectures. It's about practicing the thing the interview actually grades: making tradeoffs out loud, justifying constraints, and driving a 45-minute design conversation. Each chapter follows the same shape — core concept → visual model → interview use → tradeoffs → checkpoint quiz.

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Full learning path