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Learn how Duolingo built and tested an on-demand notification system capable of handling massive scale during the Super Bowl in this 48-minute technical presentation. Explore the engineering challenges and solutions for managing cloud resources and site reliability while delivering millions of notifications within seconds. Discover practical approaches for mitigating reliability issues in high-traffic scenarios, with detailed insights from Zhen Zhou on system architecture, testing methodologies, and operational best practices for large-scale notification delivery systems.
