David del Cura — Design Engineer, AI Systems, Design AI Lead, Sound Designer.
I design the layer under the interface — the AI that works on it, and the sound it makes.
- Based
- Madrid · remote · hybrid
- Open to
- Staff roles & contracts
- Certified
- NNG UX Professional
Hi, I’m David.
I’ve been building websites since I was 14. I started on the backend, writing C# for a national cybersecurity platform, and kept moving towards the person on the other side of the screen: frontend, interaction architecture, then Lead UX.
At Vocento I learned to write systems: 13 editorial brands, one design infrastructure, four years of subscription work. Today I design with AI inside the process, from the Figma file to production. I learned the craft without it — that’s why it works for me.
“An agent can read your whole system. It can’t read why it exists.”
Every layer I’ve played.
Four roles in order. Each one added a layer — none replaced the last. Music was there from the start.
- Backend to frontend
C#, .NET and MongoDB for ANA at Sidertia, then TypeScript, React and component architecture.
Layers in play · 2 of 5Music · Engineering AddedC# · .NET · SQL · TypeScript · React - UX architecture
High-security systems for CCN-CERT, where an interface decision can compromise an investigation.
Layers in play · 3 of 5Music · Engineering · Design AddedFigma · Behavioral design - Design lead, 13 brands
Vocento: one conversion architecture, one design infrastructure, 4× mobile conversion.
Layers in play · 5 of 5Music · Engineering · Design · Product · AI AddedDesign systems · Three.js · GSAP · Subscription funnels · LLM tools - Design engineer, AI systems
LLM tools, MCP pipelines and agents inside the process, from Figma to production.
Layers in play · 5 of 5Music · Engineering · Design · Product · AI AddedClaude · MCP pipelines · agents · Cross-team alignment
LLM tools, MCP pipelines and agents inside the process, from Figma to production.
Music · Engineering · Design · Product · AI
AddedClaude · MCP pipelines · agents · Cross-team alignment
And under all of it,
music.
Fifteen years of formal study — harmony, composition, theory. Producer and composer across electronic and organic sound. The same discipline, for the ear.
All sound work →Principles, running.
Six rules I work by. I don’t ask you to trust them: each one is a live prototype, built with the same tokens as this site. Pick one and use it.
Let’s build the layer under yours.