Juan C. Guerrero

Proof of work.

15 entries from 420+ projects on record. Each says what the situation was, what I did and what came of it. Where a public source exists, it's linked so you can check.

Capital Harness

An M&A advisory firm's knowledge sat in thousands of files. Two full mandates alone, about eighteen years apart, ran to some 5,400.

Reverse-engineered both into one working system: a five-layer architecture, governance tiers, a Word add-in and a model router. I designed and built the eval system: live trajectory evals graded on tool path, citations and answer, run nightly against a real model, behind a pull-request gate. User feedback becomes eval fixtures, not fine-tuning data.

Client work, so there's no public link. Ask me and I'll walk you through it.

  • 956 commits in 18 days
  • 248 merged pull requests
  • Nightly evals on tool path, citations and answer

A clinical operating system

A private clinic network in four Costa Rican locations, serving about 10,000 patients a year, needed booking, records, operations, reporting and e-invoicing in one place.

Won the build and led it from discovery to production. Agents write the code. I direct it, review it, and fix it when something breaks.

Client work, so there's no public link. Ask me and I'll walk you through it.

  • 5,098 commits
  • 644+ pull requests

Open-source agent tooling

The tools I wanted for working with agents did not exist, so I built them and published them.

Remotion Superpowers turns Claude Code into a video studio. The GTM Engineering Command Center packages my growth method as 15 agents. DojoWatch runs AI-vision visual regression tests. The WDK Skill teaches coding assistants to integrate Tether's Wallet Development Kit. The MCP Excellence Standard sets twelve design rules for servers built around how agents read context.

Verify: Remotion Superpowers, GTM Engineering Command Center, DojoWatch, WDK Skill, MCP Excellence Standard

  • 150+ GitHub stars on Remotion Superpowers
  • MIT-licensed MCP Excellence Standard v1.0

Tomatómetro

Costa Rica's 2026 presidential race had 20 candidates and no simple public way to rate them.

Conceived it and led product and launch: a civic-tech platform where citizens rate candidates as fresh or rotten, live during the debates.

Verify: Delfino.cr, NCR Noticias, Source code

  • 300,000+ votes from 23,712 citizens
  • 1,600+ voting live during the first debate

asamblea-api

Costa Rica's Legislative Assembly publishes its work in forms that are hard to query.

Turned it into clean data and an MCP server: votes aligned with the tallies read aloud on video, transcripts with speaker turns, and bills compared with the law in force, article by article.

Client work, so there's no public link. Ask me and I'll walk you through it.

  • An AI assistant can now read the Assembly directly

MediRed and Bonanza Asistencia

A clinic network's ads were reaching each person about 19 times, against a normal 1.35 to 2.5, under a fixed monthly ad cap.

As marketing consultant to Grupo Bonanza, I rebuilt paid social as a lead engine on the same budget: lead forms synced to sales every five minutes, Messenger sends to past conversations and per-clinic targeting, with appointments reported by channel.

Client work, so there's no public link. Ask me and I'll walk you through it.

  • 200x ROAS on MediRed
  • 100x ROAS on Bonanza Asistencia
  • New monthly contacts from 1,487 to 6,393 on the same budget

Miss Universe 2024, Mexico City

The Miss Universe Organization needed ticket sales from paid social it could measure.

Built the Meta direct-response campaign with pixel and conversion tracking. I also designed the organization's Web3 program and its 8,888-piece digital collection.

Verify: Chainwire, Geek Metaverse

  • USD 120,290 in tracked ticket purchases
  • 483 website purchases

AI creative at cents per result

Dojo Coding's lead campaigns had averaged USD 3.07 per result over 26 months.

Generated 74 creatives with AI and launched them through the Meta Marketing API, then packaged the method as an open-source Claude Code plugin with 15 agents.

Verify: GTM Engineering Command Center

  • 322 registrations at USD 0.58 each
  • About a fifth of the previous cost

Pepsi and Gatorade at Jotabequ Grey

As Digital Director, one of three directors under the CEO of a 130+ person agency in the WPP network, I led digital for the portfolio.

Ran strategy, the digital team, CRM and paid media of USD 250K+ a month for Pepsi, Gatorade, FIFCO, Pizza Hut, Hennessy and Flor de Caña. In 2022 I also brought generative AI into the agency, with an ideation assistant and a 13-class academy for staff.

Client work, so there's no public link. Ask me and I'll walk you through it.

  • Pepsi UEFA Champions League: 116% of planned conversions
  • 42,041,019 paid impressions
  • Gatorade: monthly social impressions from 1.5M to 9.6M

Volveré

The late José Capmany had a voice Costa Rica still knows. AI made a new duet with his son possible.

As Digital Lead and co-author of the idea, helped launch the first official, professional AI song with a deceased artist, a duet between Capmany's cloned voice and his son.

Verify: Effie Worldwide, Music Business Worldwide, The Stable, Insider Latam

  • Effie Silver 2024, Public Relations
  • Covered by Music Business Worldwide

Blockchain Jungle

Costa Rica had no summit for freedom technology, so I started one.

Founded it and ran it as Executive Director: sponsors, speakers, government relations and the full P&L, at the Costa Rica Convention Center. Speakers have included Phil Zimmermann, Eli Ben-Sasson and Peter Todd, and I moderated a dialogue on Tether's global impact with Todd.

Verify: Forbes Centroamérica, CriptoNoticias, La Nación, El Financiero

  • 2025: 5,000+ attendees from 60+ countries, 52 sponsors and partners
  • 2023: 3,500+ in person, 47+ speakers
  • 55+ CEOs at PROCOMER's Doing Business session

Yuplón × World

World launched in Costa Rica with no local platform integrated.

Closed and launched the partnership as Head of Growth at Alianza Capitales: a mini-app, WLD payments and the "Verifícate y Yuplonate" campaign. I also serve as World's national Orb operator in Costa Rica.

Verify: Delfino.cr, El Financiero

  • First Costa Rican platform integrated with World
  • 235,000 mini-app views

Developer ecosystems

Protocols need developers who ship, not just attend.

Ran activations at Dojo Coding: Starknet Re{ignite}, the Tether WDK × Avalanche payments hackathon, and a Starknet-funded founder residency. Dojo is growing by 1,300+ new users a month, mostly developers.

Verify: Chainwire, Ecosistema Startup, Dojo

  • 713 developer conversions for Starknet Re{ignite}
  • 35 founders in 12 teams at Startup House
  • 1,300+ new users a month on Dojo

Quantathon CR 2026

Central America had never held a quantum-computing hackathon.

Dojo Coding co-organised the first one, with CERN's Open Quantum Institute and the University of Costa Rica. I mentored teams.

Verify: La Nación, The Costa Rica News

  • NPS +71
  • 26 of 28 respondents wrote quantum code

AI adoption for institutions

Companies and public institutions want AI in production and don't know where they stand.

Built Pulso IA, a private AI-adoption diagnostic, for the Dojo Coding × RACSA alliance, with a variant for Instituto Nacional de Seguros. Ran AI fluency programs for Avon Costa Rica and Almacenes El Rey. Dojo Coding joined the OpenAI Partner Network at Select tier.

Verify: Dojo Coding

  • OpenAI Partner Network, Select tier, September 2026