Explore articles, tutorials, and development notes about System Design.
Learn how to design and build a scalable notification system using Node.js, PostgreSQL, Redis, BullMQ, queues, retries, workers, email, SMS, push notifications, and in-app notifications. Every step includes implementation and local testing so you can simulate the complete system yourself.
Read article →Learn how to design a scalable URL shortener like Bitly by exploring requirements, API design, database structure, caching, short-code generation, redirection, scalability, and system architecture.
Read article →Learn the fundamentals of system design by understanding how users, web applications, load balancers, API gateways, backend services, caches, message queues, and databases work together to build scalable applications.
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