Medium

Paolo Perrone

14.3K followers

Pinned

In

Data Science Collective

by

Paolo Perrone

·

Jul 23, 2025

Stop Prompting, Start Designing: 5 Agentic AI Patterns That Actually Work

When I first started working with LLMs, I thought it was all about writing the perfect prompt. Feed it enough context and — boom — it…

Stop Prompting, Start Designing: 5 Agentic AI Patterns That Actually Work

Pinned

In

Data Science Collective

by

Paolo Perrone

·

May 6, 2025

From Beginner to AI/ML Pro in 2025: The Step-by-Step Roadmap that Gets You Hired

When I first decided to break into AI and machine learning, it felt like stepping into a maze without a map.

From Beginner to AI/ML Pro in 2025: The Step-by-Step Roadmap that Gets You Hired

Pinned

In

Data Science Collective

by

Paolo Perrone

·

May 19, 2025

AI Agents in 5 Levels of Difficulty (With Full Code Implementation)

About two weeks before a big product deadline, my prototype agent broke in the worst way.

AI Agents in 5 Levels of Difficulty (With Full Code Implementation)

Pinned

In

Data Science Collective

by

Paolo Perrone

·

Apr 21, 2025

The Open-Source Stack for AI Agents

I remember sitting down one weekend, convinced I was finally going to build a decent prototype of a research assistant agent. Nothing fancy…

The Open-Source Stack for AI Agents

Pinned

In

Data Science Collective

by

Paolo Perrone

·

Jun 25, 2025

The Complete Guide to Building Your First AI Agent with LangGraph. (It’s Easier Than You Think)

Three months into building my first commercial AI agent, everything collapsed during the client demo.

The Complete Guide to Building Your First AI Agent with LangGraph. (It’s Easier Than You Think)

In

Data Science Collective

by

Paolo Perrone

·

8h ago

The 9-Month Roadmap From Data Scientist to AI Engineer

(Phase by Phase, Resource by Resource, Skip List Included)

The 9-Month Roadmap From Data Scientist to AI Engineer

In

Data Science Collective

by

Paolo Perrone

·

4d ago

What is Agentic Search?

And why a 4-search loop costs about 5 times one search

What is Agentic Search?

In

Data Science Collective

by

Paolo Perrone

·

Oct 31

How to Build an Agent Eval You Can Trust

And why a 2.5-point drop after a harness swap can be pure noise

How to Build an Agent Eval You Can Trust

In

Data Science Collective

by

Paolo Perrone

·

Oct 28

Mac Studio vs DGX Spark vs RTX 5090

The Model You Want Decides Which Computer to Buy

Mac Studio vs DGX Spark vs RTX 5090

In

Data Science Collective

by

Paolo Perrone

·

Oct 24

What is a Transformer?

And why every LLM answer is a guess

What is a Transformer?

Paolo Perrone

Paolo Perrone

14.3K followers

Founding Editor, Data Science Collective. How production AI actually breaks: agents, inference, GPU economics. Twice a week at theaiengineer.substack.com

Following

Help

Status

About

Careers

Press

Blog

Store

Privacy

Rules

Terms

Text to speech