System Design Sessions – Code & Notes

This repository contains the source code and notes from our System Design learning sessions. Each session dives into different aspects of designing scalable, efficient, and maintainable systems.

📚 Contents

• ✅ Source code examples from each session
• 📝 Detailed notes
• Class Notes
• Discussion of Interview Questions
• 1 Pager Revision Notes of each Design Pattern
• Revision / Recalling Frameworks
• ⚙️ Real-world architecture patterns
  • Parking Lot Problem
  • Elevator System Design
• 🔍 Concepts such as:
  • Object Oriented Programming
  • SOLID Principles
  • Design Patterns : Strategy, Observer, Decorator, State, Factory, Singleton, Builder, Prototype, etc.
  • Load Balancing
  • Caching
  • Database Sharding
  • CAP Theorem
  • Microservices vs Monolith
  • Message Queues
  • Scalability, Availability & Reliability

🧠 Who is this for?

Anyone looking to strengthen their System Design fundamentals — especially useful for:

• Software developers
• Backend engineers
• Candidates preparing for tech interviews

Students of NSD405 Course : Block 43, Block 44, Block 45

📁 Structure

🚀 How to Use

1. Browse the folders by session.
2. Read the notes for conceptual understanding.
3. Explore and run the code to deepen your practical knowledge.

Bonus Content:

(ComingSoon)

References :

1. Refactoring Guru
2. S.O.L.I.D Principles
3. Mermaid
4. draw.io
5. Head First Design Pattern
6. AWS Educate

Articles that I refer from time to time

Happy Designing! 🛠️