Stiven Martínez stiv.
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Stiven Martínez

I have launched and scaled real products, from zero and from a prototype. That track record is execution, not theory.

Track record

From WordPress themes to co-founding GuruHotel at Y Combinator and building Hospy.ai. Measurable results at every stage.

  1. Present

    Hospy.ai

    AI expert & developer

    I help build the future of short-term rentals and AI agents: digital employees that run check-ins, housekeeping, chat, and payments around the clock.

  2. 2019 - Present

    GuruHotel, Inc.

    Head of Product and Co-Founder

    I designed and built the first version of the product: from 0 to $60k in sales in a few months. That got us into Y Combinator (Winter 2020). I was promoted to Head of Product and, with Michael Seibel (then YC CEO) and Josue Gio (GuruHotel CEO), became a co-founder.

  3. 2015 - 2019

    Grupo MContigo

    Part-time UI / UX Design & Frontend Development.

    I was in charge of the redesign and maintaining of the multiple products of the group as mejorconsalud.com and lamenteesmaravillosa.com, media sites that in that time had more than 10 million users per month in multiple countries and languages.

  4. 2012 - 2019

    Osito / Mosaic Media

    Freelance UI / UX Design & WordPress Development.

    We made multiple projects for this company, including the design and development of corporate landing pages, branding and UI/UX design for their products.

  5. 2006 - Present

    Stivmartinez.com

    Branding, UI / UX Design & Frontend Development.

    I have started my journey at the age of 14, making freelance projects for multiple clients and companies. Also i made multiple personal projects that sell a good quantity of products and services.

  6. 2012 - 2017

    TemasLab

    WordPress themes — inactive project

    I developed custom WordPress themes and downloadable themes on the official wordpress.org theme marketplace, with 30k active installations at their peak.

Capabilities

Design, product, code, and the scale layer — so it exists for real, not as a weekend prototype.

Designer

  • Product Design (UI)
  • UX Research (UX)
  • Branding & Identity
  • AI Video Generation

Developer

  • React / Next.js
  • Astro / TypeScript
  • Tailwind CSS
  • AI Agents
  • Rest API / GraphQL
  • PostgreSQL

Scale

  • Technical SEO
  • Infra & hosting
  • Auth & security
  • Analytics

Languages

  • Spanish (Native)
  • English (Improving)