Curriculum/The Design Interview/13.3 Design a Chat System

13.3 Design a Chat System

Design a real-time chat system like WhatsApp or Slack — WebSocket connections, message storage, delivery guarantees, and presence.

🔒

System Design Mastery

From single-server apps to planet-scale distributed systems. Build the mental models and design instincts that separate senior engineers from everyone else.

Your balance: 0 ⚡

Or subscribe to Spark Pass for unlimited access