Requirements: accept 10k uploads/min peak, do thumbnailing, virus/metadata checks, store original and derived images.
Alex Xu's is a highly regarded resource for engineering interviews, providing a structured 4-step framework for tackling open-ended design problems. While the full books (Volume 1 and 2) are paid products, several community-maintained GitHub repositories offer PDF versions, comprehensive notes, and official visual summaries. Top GitHub Repositories for Alex Xu Resources
To get the most out of Alex Wu's PDF guide and GitHub repository, follow these steps:

