Pub-Sub System Design

Prepare to dive into a System Design Mock Interview modeled after real interview rounds at FAANG+ companies and other leading tech firms. In this session, you’ll design the architecture of a distributed Publish-Subscribe (Pub-Sub) system, focusing on scalability, fault tolerance, and real-time message delivery. The interview simulates a real-world System Design round, challenging you to define, design, and justify the architecture of a messaging platform that efficiently connects publishers and subscribers across a distributed environment. Expect a blend of conceptual reasoning, deep technical exploration, and scenario-driven design challenges.

What You'll Practice:

• Structuring and communicating end-to-end system architectures for distributed messaging systems.
• Designing for scalability, durability, and low-latency message delivery.
• Applying System Design principles to queue management, topic partitioning, and consumer coordination.
• Creating clear, well-structured design diagrams that illustrate message flow and system interactions.
• Evaluating trade-offs between consistency, availability, and performance under high throughput.

By the end of this System Design Mock Interview, you’ll be ready to confidently design and articulate scalable Pub-Sub architectures, showcasing strong architectural reasoning and interview readiness.