Design Patterns Playbook

Master every major software design pattern with a fully structured, multi-language codebase built for serious developers.

This bundle is a complete, production-ready, multi-language executable codebase, along with outputs covering all essential software design patterns used in top engineering roles and system design interviews.

You'll get:

✅ 20+ Classical Design Patterns

Creational, Structural, Behavioral — everything including

1. Singleton
2. Factory & Abstract Factory
3. Builder
4. Prototype
5. Adapter
6. Strategy
7. Observer
8. Decorator
9. Command
10. State
11. Proxy
12. …and the rest of the GoF patterns.

✅ Implemented in 7+ Major Languages

For each pattern, you get parallel examples in:

Java, Python, TypeScript, Ruby, C#, Swift, Go

Perfect for interview prep, switching tech stacks, or deepening architecture intuition.

✅ Clean, Runnable Code

Each example follows best practices, real-world directory structures, and readable explanations.

✅ Ideal For

1. Developers who want to strengthen their architecture skills
2. Interview prep (FAANG/Top Product Companies)
3. Students building strong fundamentals
4. Engineers switching to a new language
5. Mentors/trainers creating teaching material

🎯 Why this product stands out

Most courses teach design patterns in only one language.

This repo teaches thinking, not memorizing—by showing the same pattern across multiple languages so you actually understand modern software design deeply.

This is the kind of resource you wish you had when starting out.