Teodoro Villanueva — AI Specialist, CTO at Rreal Tacos

Rreal Tacos. AI in the daily operation of 13 restaurants.

A restaurant group with 13 locations and more than 1,300 employees. I joined as an AI strategy consultant, became Head of Technology, then CTO, within a year. I set the technology roadmap, own the software architecture and data infrastructure, and lead the use of AI across the restaurants' operations.

Scale: 13 locations and more than 1,300 employees
Path: AI strategy consultant, then Head of Technology, then CTO, within a year
Scope: Technology roadmap, software architecture, data infrastructure, AI across operations
Since: Jun 2025

greener.bio. Waste traceability for more than 30 municipal governments.

greener.bio integrated into the operations of waste management: it cut costs, prevented failures and improved service, while recording every event so circular-economy companies could make verifiable diversion claims. I co-founded it with two partners at 20 and was CTO for three years, across four product versions and three business-model pivots. It was absorbed into Kolibri in October 2023.

Press coverage

Reach: 30+ municipal governments serving over 2 million people
Countries: Argentina, Uruguay, Paraguay, Peru and Colombia
Clients: 5 Fortune 500 companies, the Inter-American Development Bank and Fundación Moisés Bertoni
Result: General Madariaga multiplied recyclable collection sevenfold in under four months, from about 200 to almost 1,400 kg a day
Business: USD 330K pre-seed, USD 30K in monthly recurring revenue
Team: 13-person product team, 4 product versions, 3 business-model pivots
Recognition: 2021 Latin America Green Awards, Sustainable Cities (Mobility), among 2,500+ projects from 29 countries
Outcome: Absorbed into Kolibri in October 2023

8,888,067downloads of react-native-web-maps. An open-source library I wrote.

npm registry, synced at build331.1K in the last month

Recycler-34.6021, -58.3669

Map drawn in SVG, markers synthetic

// On the web, react-native-maps resolves to
// @teovilla/react-native-web-maps via a bundler alias.
import MapView, { Marker, Polyline } from "react-native-maps";

<MapView initialRegion={region}>
  <Marker
    coordinate={{ latitude: -34.6012, longitude: -58.3843 }}
    title="Pickup"
  />
  <Marker
    coordinate={{ latitude: -34.6087, longitude: -58.3712 }}
    title="Collector"
  />
  <Marker
    coordinate={{ latitude: -34.6021, longitude: -58.3669 }}
    title="Recycler"
  />
  <Polyline coordinates={route} strokeWidth={4} />
</MapView>

Live demo in the react-native-maps API shape. Drag to pan; markers are synthetic.

One maps API for React Native and the web: react-native-maps on iOS and Android, Google Maps in the browser. Its npm dependents include packages from app builders Draftbit, Vibecode and Rork.

Stars: 75 stars
npm dependents include: Vibecode
Source: npm

Read the project page

Work history

Most recent first. Open a row for the detail.

Rreal TacoscurrentChief Technology OfficerJun 2025 – present
1. Chief Technology Officer
2. Head of Technology
3. AI Strategy Consultant
A restaurant group with 13 locations and more than 1,300 employees. I joined as an AI strategy consultant, became Head of Technology, then CTO, within a year. I set the technology roadmap, own the software architecture and data infrastructure, and lead the use of AI across the restaurants' operations.
HashiTechnical AdvisorMar 2025 – Nov 2025
1. Technical Advisor
2. AI Solutions Architect
3. Senior Software Engineer
An AI video platform. I joined as a senior engineer and was promoted to AI solutions architect: I designed the platform's AI architecture and its video-processing pipelines as it scaled to more than 100 corporate clients in nine countries. I now advise on architecture and AI strategy.
ATLAZCo-founder & CTOApr 2024 – Jul 2025
An open-source framework for accounting for the externalities of waste. Forbes México reported its work with Coca-Cola, Nestlé and IDB Lab.
KolibriWaste Traceability Software ArchitectOct 2023 – Apr 2024
R&D for a new waste-management product after greener.bio was absorbed into Kolibri.
greener.bioCo-founder & CTOOct 2020 – Oct 2023
Waste-traceability platform for municipalities and companies, co-founded at 20.
Arelli Commercial CleaningSenior Mobile DeveloperOct 2020 – Apr 2021
Revived an abandoned React Native and Expo app with Firebase Cloud Functions.
Whom Digital LabFull-stack DeveloperMar 2020 – Dec 2020
Client work at a digital studio, including the first greener.bio app in React Native and Expo: the sign-up flow, assigning users to collection circuits, and the map styling.
Waitless OrderFull-stack DeveloperOct 2019 – May 2020
Front end and back end of an ordering platform. Led a complete rewrite.
PlooFull-stack DeveloperFeb 2019 – Jun 2019
A complete car-sharing system built on geospatial computation.
THET StudioFull-stack DeveloperJan 2018 – Apr 2018
My first full-stack role, after a year of freelance Minecraft server plugins in Java: front end and back end on the studio's projects.

Open source

Open-source work, synced from GitHub at build time.

All repositories on GitHub

Contributions to other projects

Fixes and features sent to the projects I build on.

Also in issues, PRs and discussions at Next.js, Cloudflare Agents, openapi-codegen, urql, HeroUI Native, Turborepo, Dripsy, twrnc.

Worked with

Companies and institutions connected to my work. Each relationship links to its source.

Supported greener.bio through its World Without Waste program, and later worked with ATLAZ.
Sources:Economía Sustentable Forbes México
Worked with ATLAZ.
Sources:Forbes México
A client of greener.bio. IDB Lab, the bank's innovation lab, later worked with ATLAZ.
Sources:Forbes México
Sponsored an assessment of greener.bio's contribution to the Sustainable Development Goals.
Sources:La Prensa
A client of greener.bio.
Sources:From my own record
Vibecode
Publishes packages on npm that depend on react-native-web-maps.
Sources:npm