RubénCalahorro

Full-stack development and product design

Editorial portrait of Rubén Calahorro, recreated with AI from his photograph.

Selected work

Ideas made into products.

B2B · E-commerce

By Demes

Development of a B2B platform for security professionals, bringing together the catalogue, technical information and purchasing.

  • C#
  • .NET Core
  • Angular
  • SQL Server
  • REST APIs
Explore project: By Demes
7×Confirmed web orders per year2018 → 2024

Education · Real-time communication

Blazaar

An education platform connecting students and teachers through video classrooms, file management and payment integration.

  • AngularJS
  • Symfony
  • WebRTC
  • OpenTok
  • FullCalendar
Explore project: Blazaar
AngularJS
Symfony
Full-stack developer

Design with intent. Build with purpose.

I’m Rubén, a full-stack developer based in Barcelona. My background connects graphic design, user experience and software engineering. I enjoy understanding a problem, shaping it and building a solution that works.

Since 2015, I have worked as a freelance developer across product, interface and backend. I’m looking for teams to build with and projects where I can contribute from start to finish.

From idea to implementation

  • Product design and UX
  • Frontend and interface systems
  • Backend and integrations
  • Automation and AI

Let’s make something that matters.

A role on your team or a project in mind? Let’s talk about what you need to build.