Aashish Kumar

I Wrote Python for 100 Days — Here’s What Changed Forever

A 100-day journey that rewired how I approach problems, projects, and even learning itself.

10 Performance Tips to Make Your FastAPI App Lightning Fast ⚡

Speed matters. Here’s how to optimize your FastAPI app without overcomplicating your code.

What I Learned From Working Under 3 Principal Engineers for 2 Years

Hard-won lessons on architecture, leadership, and code quality that no course will teach you.

Stop Copy-Pasting Code! Learn How to Think in Python

Break free from Stack Overflow dependency and start solving problems the Pythonic way.

FastAPI Dependency Injection Masterclass: Cleaner Code, Better Architecture

Unlock the true power of FastAPI with dependency injection patterns that scale.

The One Question a Principal Engineer Asked Me That Changed My Perspective

A simple question that shifted how I think about code, teams, and impact as a developer.

5 Soft Skills That Turned Me From a Good Developer Into a Great One

These 5 non-technical traits made a bigger impact on my career than any framework ever did.

90% of Python Developers Ignore This Simple LIST Trick!

This one list trick can make your code cleaner, faster, and way more Pythonic — with zero extra libraries.

9 Developer Mistakes I Stopped Making After Mentorship From a Senior Engineer

These 9 lessons reshaped how I write, think, and grow as a developer — and they might do the same for you.

Never Use None for Missing Values Again (Do This Instead)

There’s a better, safer way to represent missing data in Python — here’s what you should use instead.

100 Modern Python Libraries You Must Know in 2025! 🚀

I have discovered these few game changer modern set of libraries that you should must know in 2025.

Clean Code in Python: 7 Rules I Swear By

Here are 7 battle-tested rules I follow to write clean, readable, and maintainable Python code every single time.