# Federico Ramallo, CV

Curriculum vitae of Federico Ramallo. Founder of Density Labs, author of The Invisible Distance and a series of Austrian economics fables, and host of The PreVetted Podcast.

CV / resume page (/cv/). Built from Federico's own LinkedIn and site data. Links point back to ramallo.io/books and the company sites. Print-friendly. 

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<div class="cv">

  <header class="cv-head">
    <div class="breadcrumb" style="font-size:.85rem;margin-bottom:.6rem;">
      <a href="/">Federico Ramallo</a> <span aria-hidden="true">/</span> <span>CV</span>
    </div>
    <h1>Federico Ramallo</h1>
    <p class="cv-role">Founder, author, and podcast host</p>
    <p class="cv-lede">
      I build engineering teams and companies across borders, and I write about the ideas
      underneath both, from cross-border leadership to Austrian economics. I shipped my first
      line of production code at 15 and joined Microsoft as an engineer at 16. The thesis I have
      worked from ever since: the teams, and the writers, that win are the ones with the deepest
      context, not the loudest tools.
    </p>
    <p class="cv-meta">
      <span>Guadalajara, Mexico</span>
      <a href="https://ramallo.io/">ramallo.io</a>
      <a href="https://densitylabs.io">densitylabs.io</a>
      <a href="https://prevetted.ai">prevetted.ai</a>
      <a href="https://www.linkedin.com/in/framallo/">linkedin.com/in/framallo</a>
    </p>
  </header>

  <section>
    <h2>Books and writing</h2>
    <ul class="cv-flat">
      <li>
        <span class="cv-title"><a href="/books/the-invisible-distance/">The Invisible Distance</a></span> (2026).
        A field manual for engineering leaders running teams across borders. Not a remote work book
        and not an outsourcing book, the operating system underneath both.
      </li>
      <li>
        <span class="cv-title"><a href="/books/de-menger-a-milei/">De Menger a Milei</a></span> / From Menger to Milei.
        Austrian economics for a general reader, tracing the ideas from Carl Menger and the School of
        Salamanca through to Javier Milei.
      </li>
      <li>
        <span class="cv-title"><a href="/books/no-hay-plata-en-la-isla-de-las-ratas/">No hay plata en la isla de las ratas</a></span> / No Silver on Rat Island.
        A libertarian animal fable about a community that loses its freedom as it loses its sound money.
        Book 1 of the Isla de la Libertad series.
      </li>
      <li>
        <span class="cv-title"><a href="/books/la-riqueza-de-la-isla/">La riqueza de la isla</a></span> / The Wealth of the Island.
        A children's fable that introduces Adam Smith's ideas to readers ages 8 to 12.
      </li>
      <li>
        <span class="cv-title"><a href="/books/open-the-valve/">Open the Valve</a></span> / Abre la Válvula.
        Co-authored with John Klymshyn and Isaac Naor, on creativity as a daily practice.
      </li>
    </ul>
    <p style="margin-top:1rem;font-size:.92rem;"><a href="/books/">Full catalog at ramallo.io/books</a></p>
  </section>

  <section>
    <h2>Experience</h2>

    <div class="cv-item">
      <span class="cv-when">2016 to present</span>
      <div class="cv-title">Founder, Density Labs</div>
      <div class="cv-sub">The AI Engineering Partner for the mid-market, <a href="https://densitylabs.io">densitylabs.io</a></div>
      <p>Founded and still run Density Labs, the embedded engineering partner behind production
      software at mid-market US companies. The Density Method, a 12-phase operating system across
      Plan, Build, and Ship. 96% client retention since 2016, with the longest client partnership
      now in its tenth year.</p>
    </div>

    <div class="cv-item">
      <span class="cv-when">2023 to present</span>
      <div class="cv-title">Host, The PreVetted Podcast</div>
      <div class="cv-sub"><a href="https://prevetted.ai/podcast">prevetted.ai/podcast</a></div>
      <p>150+ conversations with engineering leaders about scaling, leading, and building teams
      that last. Guests include operators and founders from Ascendion, Roku, Cisco Meraki, AppOmni,
      and Shopify.</p>
    </div>

    <div class="cv-item">
      <span class="cv-when">2024 to present</span>
      <div class="cv-title">Founder, PrevettedAI</div>
      <div class="cv-sub"><a href="https://prevetted.ai">prevetted.ai</a></div>
      <p>Tooling for AI-assisted engineer matching, the productized arm of Density Labs.</p>
    </div>

    <div class="cv-item">
      <span class="cv-when">2009 to 2016</span>
      <div class="cv-title">Co-Founder and CTO, Tangosource</div>
      <p>Built the team from one to twenty full-stack engineers using pair programming and a
      structured training program that scaled the skills of more than fifty developers. This set
      the foundation for what became Density Labs.</p>
    </div>

    <div class="cv-item">
      <span class="cv-when">2015 to 2024</span>
      <div class="cv-title">Full-Stack Mentor, theFirehoseProject</div>
      <p>Mentored aspiring developers in JavaScript and Ruby on Rails, moving dozens of career
      changers into productive software engineering careers.</p>
    </div>

    <div class="cv-item">
      <span class="cv-when">2008 to 2016</span>
      <div class="cv-title">Rails engineering, earlier roles</div>
      <p>Full-stack Rails work at Translation Exchange, Citivox, and Crowd Interactive, including
      the ModCloth e-commerce platform. Earlier still, I joined Microsoft as an engineer as a
      teenager and demoed software to executives at one of Argentina's largest telecoms.</p>
    </div>
  </section>

  <section>
    <h2>Focus and skills</h2>
    <p>Ruby on Rails, AI and large language models in production, software architecture,
    engineering management, and building distributed and cross-border teams. Alongside the
    engineering, a decade of writing and speaking for both technical and general audiences.</p>
  </section>

  <section>
    <h2>Links</h2>
    <p class="cv-meta">
      <a href="https://ramallo.io/">ramallo.io</a>
      <a href="/books/">ramallo.io/books</a>
      <a href="https://densitylabs.io">densitylabs.io</a>
      <a href="https://prevetted.ai">prevetted.ai</a>
      <a href="https://www.linkedin.com/in/framallo/">LinkedIn</a>
    </p>
  </section>

  <p class="cv-print">Tip: use your browser's Print, then Save as PDF, for a copy you can attach.</p>

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