Return to site

10 timeless software design principles every developer should know.

September 20, 2025

Whether you’re writing your first classes or refactoring legacy code, these principles help keep your codebase clean, maintainable, and scalable.

Here’s what you’ll find inside ⬇️

1️⃣ DRY – Don’t Repeat Yourself

2️⃣ KISS – Keep It Simple, Stupid

3️⃣ YAGNI – You Aren’t Gonna Need It

4️⃣ SOLID – (SRP, OCP, LSP, ISP, DIP)

5️⃣ Composition over Inheritance

6️⃣ Boy Scout Rule – Leave it cleaner than you found it

👉 Swipe through the carousel for concise explanations + code snippets!

💬 Which of these principles do you apply the most in your daily coding?

#CleanCode #SoftwareDesign #SOLID #DRY #KISS #YAGNI #DevTips #Programming #Java #CodingBestPractices