Aitor Melcón is a Madrid-based Full Stack Developer with over 11 years of professional experience and more than 20 years building front-end and back-end projects, blending deep practical skills with entrepreneurial drive as founder of ROJO 2. He currently works at Kaleidos and contributes to notable open-source projects like Penpot, improving UI behavior, rendering performance, and core geometry libraries—showing comfort across both UX details and architectural changes. His background ranges from embedded C rendering for Metro de Madrid cockpits to PHP, ASP.NET and modern front-end engineering, reflecting a rare span from low-level systems to collaborative design tools. Pragmatic and curious, he values teaching and long-term impact, evident in a GitHub motto that wryly highlights the lasting lessons of learning to program.
11 years of coding experience
5 years of employment as a software developer
Formación Profesional de Grado Superior, Telecommunications, Formación Profesional de Grado Superior, Telecommunications at CEV
Penpot: The open-source design tool for design and code collaboration
Role in this project:
Full-stack Developer
Contributions:29 reviews, 8 commits, 273 PRs in 13 days
Contributions summary:Aitor primarily focused on front-end development, fixing UI issues related to the viewer inspector, mouse wheel behavior, and text scaling. The user also made changes to the common geometry and modifier libraries, indicating involvement in the underlying design tool's architecture. They contributed to component rendering and improved the performance of the rendering system, indicating broad contributions across the front-end.
Contributions:39 commits, 8 PRs, 56 pushes in 1 year 8 months
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