Build Your Own Notification Engine | System Design
Welcome to Lecture 14 of the Ultimate Low-Level Design (LLD) Series by Coder Army!
Third week for #lowleveldesign #systemdesign #8weeksLLdchallenge.
We are doing 8 weeks challenge and going to complete the whole course within the duration with quality content on Youtube. Let’s learn LLD like never before and attain advance level mastery on this subject.
In this video, we will walk through building a complete Notification System from scratch using Low-Level Design (LLD) principles.
What you’ll learn:
End-to-end architecture of a scalable Notification Engine
Support for multiple notification types: Email, SMS, Push
How to log every notification in real-time
Full support for Decorators, Observers, and Strategy Patterns
UML Class Diagrams to visualize and structure the system
C++ code walkthrough + Java code in Repo for both clarity and practical understanding
Design Patterns Used:
Observer Pattern
Strategy Pattern
Decorator Pattern
Singleton Pattern
Perfect for:
Beginners in System Design
Students preparing for LLD interviews
Developers looking to solidify design pattern concepts in real-world use
Join Coder Army Whatsapp Group: https://whatsapp.com/channel/0029Va6H...
Code and Notes: Github : https://github.com/adityatandon15/LLD
Connect with Aditya Tandon
Instagram : / adityatandon2
LinkedIn : / adityatandon2
Twitter : https://x.com/adityatandon02
00:00 Introduction
01:07 Requirements Gathering
03:18 UML Design
24:53 Code for Notification System
37:25 Identifying Problems in Code
37:42 Correcting Tightly coupled Code
#SystemDesign #LowLevelDesign #LLD #NotificationSystem #DesignPatterns #Cplusplus #JavaDevelopers #UMLDiagrams #TechInterviews #SoftwareEngineering #ObserverPattern #StrategyPattern #DecoratorPattern #ObjectOrientedDesign #CodingWithExamples #CodeBetter #8WeeksLLDChallenge
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