intermediate~2.5h
Design a Notification System on AWS
A worked system-design example for a multi-channel (push/email/SMS) notification system on AWS — SNS as the fan-out hub, per-channel delivery via Pinpoint/SES, and user preference management.
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Subtopics
🎓 Learning objectives
- •Design a system that can deliver one logical notification across multiple channels (push, email, SMS)
- •Explain SNS's role as the central fan-out point and why per-channel logic lives downstream of it
- •Incorporate user notification preferences (opt-outs, channel choice) into the design
- •Handle delivery failures and retries per channel without blocking other channels
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Related concepts
sns-eventbridgesqs-messagingamazon-mq-msk