--- title: Reducing Onboarding From 48 Hours to 4: Inside Amazon... description: Amazon Key's engineering team overhauled its event platform from a tightly coupled monolithic architecture to a centralized event-driven system built on Amazon... canonical: https://daily.dev/posts/reducing-onboarding-from-48-hours-to-4-inside-amazon-key-s-event-driven-platform-vwaza59ha twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Reducing Onboarding From 48 Hours to 4: Inside Amazon Key’s Event-Driven Platform | daily.dev og:description: Amazon Key's engineering team overhauled its event platform from a tightly coupled monolithic architecture to a centralized event-driven system built on Amazon... og:url: https://daily.dev/posts/reducing-onboarding-from-48-hours-to-4-inside-amazon-key-s-event-driven-platform-vwaza59ha og:image: https://api.daily.dev/og/posts/VWAzA59hA.png og:image:alt: Reducing Onboarding From 48 Hours to 4: Inside Amazon Key’s Event-Driven Platform og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Reducing Onboarding From 48 Hours to 4: Inside Amazon Key’s Event-Driven Platform **[InfoQ](https://daily.dev/sources/infoq)** · 3 min read · 54 upvotes · 0 comments ## Summary Amazon Key's engineering team overhauled its event platform from a tightly coupled monolithic architecture to a centralized event-driven system built on Amazon EventBridge. The redesign uses a single bus, multi-account pattern where a core EventBridge bus routes domain events to isolated subscriber accounts. A centralized schema repository with a custom client library enforces consistent data contracts across producers and consumers. Infrastructure provisioning is automated via reusable AWS CDK constructs. The results: ~2,000 events/second processed at p90 latency of ~80ms, 99.99% success rate, service onboarding reduced from 48 hours to 4, and integration time cut from ~40 hours to ~8. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: ## Similar posts on daily.dev - [Event-Driven Architecture with Spring Boot and AWS EventBridge: Escaping the Distributed Monolith](https://daily.dev/posts/event-driven-architecture-with-spring-boot-and-aws-eventbridge-escaping-the-distributed-monolith-vut2syvqf) · Sergio Lema · 49 upvotes · 0 comments - [Inside the Events Rail: How Atlassian Delivers 10 Billion Webhooks a Month](https://daily.dev/posts/inside-the-events-rail-how-atlassian-delivers-10-billion-webhooks-a-month-28sbia0pb) · Atlassian · 0 upvotes · 0 comments --- Tags: [#aws](https://daily.dev/tags/aws), [#architecture](https://daily.dev/tags/architecture), [#microservices](https://daily.dev/tags/microservices) [View this post on daily.dev](https://daily.dev/posts/reducing-onboarding-from-48-hours-to-4-inside-amazon-key-s-event-driven-platform-vwaza59ha) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Reducing Onboarding From 48 Hours to 4: Inside Amazon Key’s Event-Driven Platform","url":"https://daily.dev/posts/reducing-onboarding-from-48-hours-to-4-inside-amazon-key-s-event-driven-platform-vwaza59ha","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/reducing-onboarding-from-48-hours-to-4-inside-amazon-key-s-event-driven-platform-vwaza59ha"},"datePublished":"2026-02-19T15:06:04.082Z","dateModified":"2026-02-19T15:06:24.934Z","description":"Amazon Key's engineering team overhauled its event platform from a tightly coupled monolithic architecture to a centralized event-driven system built on Amazon...","image":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/e1da76d0ab5c3f2212a82808765a1159?_a=AQAEuop","thumbnailUrl":"https://media.daily.dev/image/upload/f_auto,q_auto/v1/posts/e1da76d0ab5c3f2212a82808765a1159?_a=AQAEuop","isAccessibleForFree":true,"articleSection":"InfoQ","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"InfoQ","logo":"https://media.daily.dev/image/upload/t_logo,f_auto/v1/logos/afc3bced3e1e4b188dd9127017a60e0c","url":"https://daily.dev/sources/infoq"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/reducing-onboarding-from-48-hours-to-4-inside-amazon-key-s-event-driven-platform-vwaza59ha","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":54},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"aws,architecture,microservices","timeRequired":"PT3M"} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"InfoQ","item":"https://daily.dev/sources/infoq"},{"@type":"ListItem","position":3,"name":"Reducing Onboarding From 48 Hours to 4: Inside Amazon Key’s Event-Driven Platform"}]} ```