Low Level System Design, Design Patterns & SOLID Principles

Mastering Low-Level System Design (LLD) is a critical milestone for software engineers aiming to transition from junior developers to senior architects. This comprehensive course, created by Prateek Narang, a Senior Software Engineer at Google, bridges the gap between theoretical object-oriented programming concepts and practical, production-ready system architecture. Throughout this course, learners dive deep into the core mechanics of SOLID principles, understanding how Single Responsibility, Open-Closed, Liskov Substitution, Interface Segregation, and Dependency Inversion actually manifest in real-world code. Beyond principles, the course demystifies Creational, Structural, and Behavioral design patterns, equipping you with the templates needed to solve recurring architectural challenges. Whether you are preparing for rigorous technical interviews at top-tier tech companies or looking to refactor complex legacy codebases, this hands-on guide provides the step-by-step blueprints. By studying clean code practices, modular design architectures, and object-oriented paradigms, you will gain the confidence to design systems that are not only scalable and highly maintainable but also resilient to evolving business requirements.