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AI-assisted engineering Working with AI Agents System design Core systems Data and AI systems Coding Coding problems Code review On-call SQL

Practice

Paths Concept guides

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Concept guides/Messaging and streams/Real-time & fan-out

System designMessaging and streams

Real-time & fan-out

Medium3 min read

Questions it teaches

In-app notificationsEasy25 min Price a meeting notes summarizerEasy20 min New listing alerts for saved rental searchesEasy25 min Live polls during a webinarEasy25 min Virtual queue for theme park ridesEasy30 min WebSocket price-tick serviceMedium35 min Multi-channel notification platformMedium40 min Presence system for team chatMedium35 min

Related

Messaging and streams Data modeling and storage Consistency and money Reliability and failover Pipelines and analytics Real-time systems Scale and caching

Builds on: Data modeling and storage

Designing a parking lot4 min Designing a pastebin3 min

Leads to: Consistency and money

E-commerce inventory (overselling)3 min QR ticketing3 min

Leads to: Reliability and failover

Observability systems3 min Anomaly detection3 min

Leads to: Pipelines and analytics

Analytics architecture3 min Data pipelines & warehousing3 min

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