The team behind Amazon Key modernized its event platform to address scalability and reliability limitations arising from a tightly coupled, monolithic architecture. As service interactions grew into a complex web of dependencies, system stability and integration velocity were increasingly constrained. The redesign introduced a centralized, event-driven architecture built on Amazon EventBridge to support millions of daily events with millisecond latency, improve schema governance, and provide a sustainable path for onboarding additional service consumers.
The Amazon Key suite powers secure in-garage deliveries and property access management. Its earlier architecture relied on tightly integrated services, where changes or failures in one component could directly affect others. Event routing logic was manually implemented and lacked advanced filtering or parallel publishing capabilities. Event schemas were loosely defined and supported only basic validation of required…
https://www.infoq.com/news/2026/02/amazon-key-event-driven-platform/
