Have you ever pressed play on Netflix and wondered what technology ensures your video starts instantly and plays without interruptions? Simply pressing play triggers a global technological symphony that delivers content to over 301 million subscribers in 190 countries.

Behind this massive operation lies one of the world's most sophisticated distributed systems architectures.

This article explores the technical decisions and architectural patterns that make streaming on Netflix effortless. It also discusses what software engineers and architects can learn from this extraordinary-scale system.