Hello, I’m Paul.

Professional Avatar of Paul Iusztin

I help engineers ship AI products.



I’m the author of the bestseller LLMs Engineer’s Handbook and the lead instructor of the Agent Engineering course.

But my path here was anything but direct.

My family lost everything in the 2008 financial crisis. As a teenager, I spiraled into destructive habits.

Then, at 18, I made a U-turn, studying relentlessly to rebuild my future. That resilience still fuels my work today. 

Now, I teach AI Engineering as I wanted to at the beginning of my career. End-to-end.

My goal is to help others escape the PoC purgatory I faced for the first five years of my career. That’s why I created Decoding AI Magazine.

When I’m not working, I spend time with my fiancée and cats, traveling, gaming, cooking, and working out. 

The

Decoding AI Magazine.

A colorful gradient background with shades of yellow, orange, and red blending smoothly.
Decoding AI logo

Real-world guides taking you from the PoC purgatory to shipping AI products that work.

Every Tuesday morning, you’ll get one free actionable tip to design, build, and deploy production-grade AI systems in less that 8 minutes.

Join 40,000+ engineers by subscribing to the magazine.