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I build thoughtful digital products.

Product engineer working at the intersection of frontend, product, and AI.

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What I'm building

Padelful

Racket reviews, ratings and price tracking for padel players, in English and Spanish.

Padelful crawls more than 20 stores every day, plus affiliate feeds, and a matcher ties each listing to the right racket. When a listing is ambiguous, an agent investigates it.

The problem I’m exploring is how far that agent can go on messy catalogue data before a person has to step in. The same data is open to other developers through a public API and an MCP server, and developers using the API already send feedback.

More than 40,000 people used it in September 2026, most of them arriving from organic search.

rackets tracked
1,708
languages
2
live since
2023
Visit padelful.com API docsMCP server

Destilados

A daily AI newsletter in Spanish, with an English edition.

Each day it reads 26 newsletters, plus 9 outlets directly, and condenses them into a few stories, each with context and an honest opinion. Stories are classified with Jev, a new model from TypeSafe.

The problem I’m exploring is filtering by judgment rather than keywords: out of a whole day of news, which few stories deserve a reader’s time. A spin-off is in private testing.

editions since 15 Aug 2026
36
sources read every day
35
Visit destilados.tokenizadospodcast.com
Tokenizados podcast cover art

Podcast

Tokenizados

A weekly podcast in Spanish about AI, recorded in the Canary Islands. I host it with Antonio Sejas.

26 episodes since March 2026, each about 45 to 75 minutes long.

Latest episodes

  1. #26 Las gafas de Meta y Muse, la factura que no baja y DHH deja de programar
  2. #25 El Sistema 1 que decide pero no razona, el freno a la IA y el hackeo a OpenAI con Claude
  3. #24 Navier-Stokes Resuelto, una mosca conduciendo coches y el Ascenso de Alexander Wang

Career

Experience

  1. Jun 2026 – now

    Engineer III, Nexcess

    Moving the customer portal from legacy code to a modern UI. I also help the team get up to speed with programming with AI.

  2. Mar 2024 – Jun 2026

    Senior Software Engineer, Liquid Web

    Integrated Salesforce into the customer portal and the checkout, and built a new checkout in React that back-office and marketing teams can configure.

  3. 2025 – Aug 2026

    Co-founder, AIOS

    Built an organisational OS that reshapes how a company is organised to put AI at the centre, and helped more than 10 companies become AI-native.

  4. Feb 2025 – Jun 2025

    Instructor, Code at Light Speed

    Taught live courses on programming with AI to engineering teams, such as XRF's, working in their own codebases.

  5. Mar 2020 – Mar 2024

    Senior UI Developer, Modern Tribe

    Agency work: products and sites for Harvard, Vimeo, BigCommerce and Steelcase. I built the program brochure on Harvard.edu, where students discover what to study, a WordPress plugin for Vimeo, and React hooks alongside BigCommerce's engineers.

  6. Oct 2018 – Mar 2020

    React Native Developer, Woonivers

    Joined the original team at one of Madrid's top startups and co-built the app that digitised tax-free shopping in Spain.

  7. Jun 2017 – Oct 2018

    Software Developer, Secret Source

    My first job, where I started with React and React Native.

Before that, I co-founded Kontroloo, NFC access control and cashless payments for events (2017), and Food to Bento, an app against food waste (2018–2019), both in Las Palmas.

About

I'm Jorge, a product-minded engineer based in the Canary Islands. I've spent the last nine years building web and mobile products, mostly on the frontend and product side.

Lately I've been exploring what changes when AI is part of the product itself instead of a feature added on top. I like simple interfaces and opinionated products, and I like turning messy ideas into things people can actually use.

The best way to reach me is email: jorge.mastana@gmail.com