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<!DOCTYPE HTML>
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<meta name="author" content="Rubén Beltrán del Río">
<meta name="description" content="Rubén Beltrán del Río is a freelance software engineer that offers a wide-range of services, including native iOS and macOS development, web development, backend services, infrastructure, as well as organizational and leadership consulting for tech teams.">
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<meta name="fediverse:creator" content="@ruben@friendship.quest" />
<title>Rubén Beltrán del Río — Holistic Tech Services</title>
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<a href="/">Rubén Beltrán del Río</a>
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<p>✷ Holistic
tech
services ✷</p>
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<span class="label">Welcome.</span>
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<div class="content">
<img src="/img/selfie.png" alt="A pixel-art portrait of Rubén doing a peace sign and sticking his tongue out" />
<p>Howdy! I'm Rubén, a freelance full-stack software engineer based in Berlin. Looking for some help with your project? I might be able to help!</p>
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<h2>I can help you build.</h2>
<ul>
<li><strong>Websites</strong> that are fast, accessible and search engine optimized.</li>
<li><strong>Native apps</strong> for iOS, iPadOS or macOS.</li>
<li><strong>Backend Services</strong> with great observability, clear documentation, and made to scale.</li>
<li><strong>Data Pipelines</strong> from tracking planning, to data warehouse extract-load-transform pipelines that give you accurate and actionable information.</li>
<li><strong>Infrastructure</strong> that can tie all your services, documented as code.</li>
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<h2>Optimize and improve.</h2>
<ul>
<li><strong>Supply chain analysis</strong> to reduce risk from dependencies across different packaging ecosystems.</li>
<li><strong>Automate</strong> code quality and deployment.</li>
<li><strong>Reduce cloud cost</strong> by optimizing your resource usage, plans and overall architecture.</li>
<li><strong>Optimize Large-Language-Model</strong> usage by creating custom tooling and Model Context Protocol (MCP) servers.</li>
</ul>
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<h2>Or help your team go fast.</h2>
<ul>
<li><strong>AI Transformation</strong>: Teach your organization how to work with AI, and build the right tools to support it.</li>
<li><strong>Upskill Your Team</strong>: Bring your team up to speed with new technologies, architecture patterns or processes.</li>
<li><strong>Product Engineering Mindset</strong>: Bring product and engineering closer together.</li>
<li><strong>Experimentation mindset</strong>, help your team learn how to design, execute, and interpret experiments.</li>
<li><strong>Systems Analysis</strong>: Streamline your operations by understanding how your team, resources and processes come together, finding chokepoints, and reducing waste.</li>
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<h2>Ain't that right!</h2>
<p>With over 25 years of experience, I've worked with big and small teams, ad-supported and sales-driven products, bootstrapped startups looking to launch, and established companies looking to scale up. I've worked with all sorts of stacks:</p>
<ul>
<li><strong>Languages:</strong> JavaScript, Rust, Ruby, Python, PHP, Swift, Objective-C.</li>
<li><strong>Cloud Providers:</strong> AWS, Scaleway, Cloudflare, Google Cloud, Azure.</li>
<li><strong>CI Systems:</strong> GitHub, Gitlab, CircleCI, TravisCI, Jenkins, Bitrise.</li>
<li><strong>Database Systems:</strong> PostgreSQL, MySQL/Aurora, Redis, MongoDB, Apache Cassandra, Snowflake.</li>
<li><strong>Analytics Software:</strong> Google Analytics, Amplitude, PostHog, .</li>
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<span class="label">Get in touch.</span>
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<p>You can book a call to tell me about your project face to face. Or you if you prefer text, you can send me an e-mail!</p>
<button><label>Book a call.</label></button>
<a role="button" href="mailto:hello@work.bdr.sh?subject=Howdy%2C%20I%27d%20like%20to%20work%20with%20you%21&body=Hi%20Rub%C3%A9n%2C%0D%0A%0D%0AI%20saw%20the%20contact%20form%20on%20your%20website%20and%20would%20like%20to%20see%20if%20we%20can%20work%20together%20on%20my%20project%3A%0D%0A%0D%0A%3CTell%20me%20a%20bit%20about%20your%20project%20here%3E%0D%0A%0D%0ABest%2C%0D%0A%3CYour%20Name%3E"><label>Send an e-mail.</label></a>
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<h2>But don't take my word for it.</h2>
<p>Here's what some lovely people have to say about me.</p>
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