Pattern series
Notification Delivery and Routing
5 System Design questions share this exact tag. Use the closely related series below for a fuller drill.
- 01Preview
Auction (eBay)
Design an eBay-style auction system — bidders compete on live listings under heavy contention near closing time, and the system must never accept a lo...
eBay - 02Preview
Monitoring and Alerting
Design the alerting and observability layer of a monitoring platform — the system that evaluates rules against incoming signals, decides who gets page...
Practice bank - 03Preview
Restaurant Reservation
Design an OpenTable-style restaurant reservation system where diners book a time slot and party size at a restaurant, restaurants optimize table assig...
Yelp - 04Preview
Notification System
Design a multi-channel notification system that sends email, push, SMS, and in-app notifications on behalf of many internal services, respecting user...
Uber - 05Preview
IoT Device Platform
Design a platform managing ~10 million connected devices over MQTT: connection lifecycle and disconnect detection, telemetry ingest at fleet scale, an...
Practice bank