// The Pragmatic Engineer · 21 January 2026

How AWS S3 is built

A behind-the-scenes look at how Amazon S3 is designed for durability and correctness at massive scale, drawing on over a decade of operating one of the world’s largest distributed systems with Mai-Lan Tomsen Bukovec at AWS.

The Pragmatic Engineer

@the-pragmatic-engineer · Gergely Orosz

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