# Juan C. Guerrero > Costa Rican founder and AI-native builder. Founder of Blockchain Jungle, co-founder, CMO and Head of Product at Dojo Coding, and author of The Last Skill: What AI Will Never Own (2026). Based in San José, Costa Rica. Contact: hola@juancguerrero.com Eleven years turning frontier technology into products, markets and movements. He designs agent harnesses and ships them with AI agent teams: agents write most of the code, and he directs it, reviews it and owns what reaches production. Public sources are linked on the Work page wherever they exist. ## Pages - [Home](https://www.juancguerrero.com/): the four proofs from The Last Skill, with evidence for each - [Work](https://www.juancguerrero.com/work): selected work, each entry with the situation, what he did and the result - [About](https://www.juancguerrero.com/about): career, recognition, speaking and press - [Writing](https://www.juancguerrero.com/blog): research articles and essays - [The Last Skill](https://www.juancguerrero.com/thelastskill): the book - [Biography](https://www.juancguerrero.com/biography): third-person biography with a public source for each section ## Key facts - Blockchain Jungle: founder and executive director; 5,000+ attendees from 60+ countries in 2025 - Dojo Coding: AI-native software studio and builder community; OpenAI Partner Network, Select tier (2026) - Builds with AI agent fleets: 10,000+ commits across 20+ repositories, including open-source Claude Code plugins, MCP servers and a Tether WDK Agent Skill - World: operates World ID in Costa Rica - Jotabequ Grey, WPP network: Digital Director, one of three directors reporting to the CEO (2022 to 2023) - Awards: Effie Silver and Effie Bronze, Costa Rica 2024; HackerNoon Noonies 2022, Contributor of the Year, News - Book: The Last Skill: What AI Will Never Own (March 2026), on agency under consequence ## Elsewhere - [LinkedIn](https://linkedin.com/in/juancguerreroe) - [X](https://x.com/juancguerreroe) - [GitHub](https://github.com/juancguerrerodev) - [HackerNoon](https://hackernoon.com/u/juancguerrero)