Structured Roadmap
Low-Level Design (LLD) Roadmap
The ultimate guide to acing the Machine Coding and Object-Oriented Design rounds at top tier tech companies.
1
Master Object-Oriented Principles
You cannot write extensible code without understanding the foundations. Learn the SOLID principles (Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, Dependency Inversion).
2
Learn the Gang of Four Design Patterns
Design patterns are standard solutions to common software design problems. Mastering Creational, Structural, and Behavioral patterns is essential for the LLD round.
3
Practice Machine Coding Problems
Theory is not enough. You must practice writing clean, modular, and thread-safe code under a time limit (usually 90-120 minutes).