Mock Interview - LLD (Low Level System Design)

Low-Level Design rounds test your ability to break down a problem into classes, responsibilities, and code-level decisions—and it’s where many candidates struggle.

In this mock session, we’ll focus on:

• Object-oriented design principles (SOLID, encapsulation, etc.)
• Designing class diagrams, interfaces, and data models
• Handling real-world use cases like a Parking Lot, BookMyShow, or Elevator System
• Writing clean, modular pseudocode
• Feedback on design patterns, edge cases, and code clarity

As someone who’s worked on complex backend systems at Amazon, I’ll help you improve not just your LLD answers but also how you think through problems out loud.