Juan C. Guerrero

I sign my work.

I'm a Costa Rican founder who works where hard technology meets a hard market.

I started in 2015 as co-founder of JCG Agency, running performance campaigns for education, retail and sports clients. By 2022 I was Digital Director at Jotabequ Grey, a 130+ person agency in the WPP network, one of three directors reporting to the CEO. That year I also brought generative AI into the agency, before most of the industry had tried it.

In 2023 I founded Blockchain Jungle, and in 2024 I co-founded Dojo Coding, where I'm CMO and Head of Product. Today I design agent harnesses down to the evals and the memory layer, and I ship them with AI agent teams. I read and change code; agents write most of it; I own what reaches production.

I care about freedom more than efficiency. It's why I work on technology that moves power toward individuals, and why I wrote The Last Skill.

Career

2024 to todayCo-founder, CMO and Head of ProductDojo Coding
2023 to todayFounder and Executive DirectorBlockchain Jungle
2024 to todayNational Operator, World (Costa Rica)Tools for Humanity
2022 to todayIndependent advisor, strategy and executionJCG LLC
2022 to todayContributing writerHackerNoon
2024 to 2025Head of GrowthAlianza Capitales
2024Web3 AdvisorMiss Universe Organization
2022 to 2023Digital DirectorJotabequ Grey, WPP network
2022Chief Marketing Officer360 Integral
2015 to 2022Co-founderJCG Agency

Recognition

2026OpenAI Partner Network, Select tier (Dojo Coding)
2026Invited to Tether's Pioneering Progress Summit, invite-only
2026#3 in a Kindle best-seller category with The Last Skill
2024Effie Silver, Public Relations, for Volveré
2024Effie Bronze, Brand Experience, for JetCoins
2022HackerNoon Noonies, Contributor of the Year, News

Speaking

2026Keynote, ALOOH Day Costa Rica: why AI makes outdoor advertising more valuable
2026Masterclass, "The last role AI can't replace"
2026Mentor, Quantathon CR
2025Moderator, dialogue on Tether's global impact with Peter Todd, Blockchain Jungle
2025Talk, "Product-Led Growth vs Marketing-Led Growth", Startup House

Press