System Design Interview Alex Xu Volume 2 Pdf Github Top Jun 2026

| Feature | Volume 1 (The Basics) | Volume 2 (The Deep Dive) | | :--- | :--- | :--- | | | Junior to Mid-level Engineers | Mid-level to Senior/Staff Engineers | | Difficulty | Foundational concepts (Scaling, LB, Caching) | Complex trade-offs, Domain-specific designs | | Famous Example | Design TinyURL, Design PasteBin | Design Google Maps, Design Nearby Friends | | Diagrams | Introductory architecture diagrams | Advanced low-level component diagrams |

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: Designing systems like Yelp or Google Maps. | Feature | Volume 1 (The Basics) |