System Design·75 minMembers

System Design: Notification / Alert System

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Design an alerting system that receives events from upstream services and fans out to subscribers. The broad variant targets users across email, SMS, push, and in-app channels; a narrower variant targ...

SWE

notification

fan-out

messaging

pubsub

rate-limiting

kafka

medium

Frequency

Medium

Last asked

2026-08-03

Stage

onsite-system-design

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