Choose Your Level
Pick the difficulty that matches where you are. You can come back and try a harder level later.
Beginner
Architect a Simple URL Shortener
Design a system that converts long URLs into short, shareable links.
2 to 3 hours 3 criteria
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Intermediate
Architect a Scalable Chat Application
Design a real-time messaging system using WebSockets and Pub/Sub.
3 to 5 hours 3 criteria
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Advanced
Architect a Global E-commerce Platform
Design a high-availability microservices architecture for Black Friday traffic.
4 to 6 hours 3 criteria
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