Rubén Beltrán del Río

✷ Holistic tech services ✷

Welcome.
A pixel-art portrait of Rubén doing a peace sign and sticking his tongue out

Howdy! I'm Rubén, a freelance software engineer and technical leader based in Berlin. I love building software and helping teams figure out how to build: how systems of people and technology, processes, and culture can make the difference between chaos and meaningful work.

I've spent over 20 years helping teams — whether it's startups just shipping their first product, to scale-ups experiencing growing pains. As a tech lead, I've seen this familiar picture: legacy systems that hinder more than they help, unpredictable release cycles that add more bugs than value, and teams good at moving code but not moving the needle.

I work holistically because problems rarely have their root in just one place. A slow release pipeline that looks like a technical issue reveals itself to be a trust problem when you look under the surface. A product launch failing to achieve its goals seems like a clear case of poor planning, but instead reveals how different parts of the organization have a different language and view of reality. I help teams understand the big picture, and find solutions that can address their problems at every level.

How I Can Help.

Sometimes you need someone to roll up their sleeves and build: Plan a system, put your product in your customers' hands, and have an infrastructure you can trust not to wake you up at night.

Sometimes you need help seeing the problem clearly: A second pair of eyes on a difficult problem, a diagnosis of why things seem harder and slower than they should, or a training that can change the way your team works.

I can do both.

What Does That Look Like?

One team's releases took months and shipped broken. I helped them move to predictable weekly releases that consistently shipped with zero major bugs.

Another team's website took over 2 seconds to load. We got it under 100ms at the 95th percentile, which helped SEO rankings climb steadily afterwards.

And one of the most common problems I encounter: several teams were fighting a legacy system and spending their days fighting fires. We deleted hundreds of thousands of lines of code, and started with a simple system that led the team to finally work on new features and improvements.

Let's talk!

You can book a call or send me an e-mail to tell me about your project or problem. I might be able to help!

Book a call.