Caio Johnston

Data scientist and consultant at Accenture, working on innovation projects involving Gen AI and Agentic AI at Vale’s artificial intelligence center. I hold a bachelor’s degree in Computer Science and am currently pursuing an MBA in AI and Big Data at USP (ICMC). Lately, I’ve been diving headfirst into the world of Agents, LLMs, RAG, MCP and more. When I’m not working on these projects, I’m listening to music, playing video games, or watching a good movie.

Caio Johnston

Companies I've worked for

Accenture
Vale
IBM

Recent Work

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Git-Craft

Create and manage a Minecraft server via GitHub Codespaces. Supports Vanilla, Paper, Fabric, and Forge. Real-time console in the browser. Git-Craft lets you create and control a Minecraft server using GitHub Codespaces as your infrastructure—no VPS, no network configuration, no SSH client.

What I've Learned Today

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10 Tips for Writing Better Prompts for Claude

A practical guide featuring 10 techniques to improve your prompts for Claude, with examples of what to do and what to avoid. Based on Anthropic’s official documentation and the model’s actual processing behavior.

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Data Science 101

data-science

This Introduction to Data Science guide covers the core concepts of the field, including what Data Science is, the differences between data analyst, data scientist, and data engineer roles, the full data science lifecycle, fundamentals of Machine Learning, and a practical application using linear regression in Python. Designed for beginners, it walks through everything from problem definition to building and evaluating predictive models, with a strong focus on real-world applications and hands-on learning.

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