From products and systems to tools and infrastructure, we work across domains and layers. We care about clarity, performance, and maintainability, but also about purpose—why it exists, who it serves, and what it's meant to become. We engineer with intent, not just precision.
We work in small teams, move (02)with you, and leave behind (01)what adds nothing. We don't rely on (05)sales scripts, avoid (03)silent traps, and only keep (04)roles that matter. No friction, no theatre—just people building well, and knowing when to step aside. We balance the new and the proven, leaning on (06)what lasts over what trends.
Work, not noise. What we build speaks louder than what we say.
Each project is a question we chose to explore. We care less about trends and more about clarity, coherence, and the kind of impact that lasts. Not everything is visible at first— some things are built to reveal meaning over time.
Next-gen commerce. How Yoigo revolutionized their e-shop experience.
Support reimagined. Building the future of customer care for Yoigo.
Scale without limits. Powering Inditex's global digital transformation.
Invoicing evolved. How Billin streamlined business operations.
“Thoroughly impressed with the work Etéreo produced so far. Very structured and transparent in the way they work and communicate effectively with the rest of the team. It's been a pleasure and I'm sure it will continue to be.”
Cities that think. Building intelligent energy solutions with Smarkia.
Democracy digitized. Empowering civic participation through technology.
DeFi simplified. Scaling decentralized finance solutions.
Taxes simplified. How Taxfix transformed tax filing forever.
“Fantastic team. I worked with almost all of Etéreo's developers on a large-scale re-launch for one of Spain's most innovative Telcos. They had a strong quality mindset, always improving and balancing perfect code with smart trade-offs […]. They were instrumental in getting the launch off the ground quickly and with great quality. Would gladly work with Etéreo again.”
Mobile redefined. Pepephone's journey to seamless connectivity.
Power optimized. Building Lucera's smart energy platform.
Health personalized. Transforming baby nutrition with AI guidance.
Ready to build something great?
Let's discuss your next project and create solutions that drive real value.
Shaping how we think. From simple tools to entire ecosystems, software isn't just a service—it's a way of structuring ideas, teams, and futures. We build with purpose, and not just function.
Software Products
Software isn't just code that works. It's structure, it's vision—it's a way of thinking about the world.
UX/UI Design
Design is the space between the expected and the possible. Between gesture, meaning, and use.
Web3 Development
Decentralization isn't a trend. It's a response—a commitment to autonomy and the shared.
AI Solutions
It's not about imitating humans, but extending what they can reach. Learning, yes. And unlearning too.
IoT Development
When physical connects, environment speaks. Listening takes more than sensors—it takes intent.
Digital Transformation
Transformation isn't just adopting tech. It's reading the present and choosing how to shape the future.
Think. Flow. Build: frontend frameworks
Meet the etereotypes. People shaped by ideas, not job titles. Always at the forefront of technology.
We're not just a team—we're a constellation of backgrounds, questions, and convictions. We build with care, with clarity, and with the belief that trust, autonomy, and craft are not extras—they're the foundation.
Hayder
Design Engineer, Partner
Anthanh
Software Engineer, Partner
Rubén
Software Engineer, Partner
Diego
Software Engineer, Partner
Daniel
Software Engineer, Partner
Ismael
Software Engineer, Partner
Óscar
Chief Spirit Officer
Misha
Software Engineer
Rocío
Front-End Developer
Paco
Software Engineer
Cristian
Software Engineer
Jimena
Front-End Developer
Mike
Software Engineer
Cristina
Office Manager
Javier
Software Engineer
Carlos
Software Engineer
Lobo
Front-End Developer
Cristofer
Software Engineer
David
Software Engineer
Álex
Software Engineer
Carlos L
Front-End Developer
Miguel A
Front-End Developer
Damián
Front-End Developer
Eugenio
Software Engineer
Gaby
Software Engineer
Germán
Front-End Developer
Diego A
Software Engineer
Miguel R
Front-End Developer
Omar
Software Engineer