System Design
Design software that scales to millions of users: requirements and capacity, load balancing, caching, databases and replication, sharding, queues, the CAP theorem, reliability, and real designs like a URL shortener. The senior-engineer and interview skill.
Every lesson runs real code in your browser, checked the moment you submit. No installing anything, no setup, no waiting.
Start System Design freeWhat this course covers
- What Is System Design?
- Requirements and Scale
- Clients, Servers and the Request Path
- APIs and REST
- Scaling Up vs Scaling Out
- Load Balancing: Sharing the Work
- Caching: Speed by Remembering
- Rate Limiting
- Databases: SQL, NoSQL and Replication
- Sharding: Splitting the Data
- Queues and Async: Do It Later
- The CAP Theorem: Pick Your Tradeoff
- Reliability: No Single Point of Failure
- Authentication and Sessions
- Observability
- Capstone: Design a URL Shortener
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