40 real-world problems · 8 categories · 400 detailed modules
From Twitter to Kubernetes — learn the systems that power the world.
40 real-world problems with 10 detailed modules each. Learn architecture, scaling, databases, APIs, and security at your own pace.
10 modules per problem covering all aspects of system design
20-minute focused sessions that fit your schedule
Learn from Twitter, Netflix, Uber, and Google architectures
From social platforms to complex distributed systems
Choose from 8 carefully curated categories, each containing 5 real-world system design problems