Roger Antonell
Frontend developer focused on design systems, long term maintainability, and building consistent UI for real products.
Education
Professional Certificate in Web Application Development
Technical training in web application development, covering frontend, backend fundamentals, databases, and deployment.
Experience
Sunweb Group | Frontend Developer
Working remotely in small agile teams across different product areas. Helped build and scale a multi-platform design system with focus on consistency and maintainability. Currently migrating legacy systems to React, Next.js, and TypeScript. Also contribute to design and shipped features designed end to end.
Algrano | Frontend Developer
Designed and implemented features end to end within the platform. Redesigned key pages that led to a sixfold increase in user messages. Also helped build their design system with documentation and scalable foundation.
Javajan | Frontend Developer
First professional role designing and building websites for clients. Handled layout, visual design, and frontend implementation using HTML, CSS, and JavaScript. Worked directly with clients on small projects, translating requirements into functional websites. Established a strong foundation in design and frontend development.
Skills
Frontend
- React
- Next.js
- TypeScript
- JavaScript
- HTML
- CSS
- Styled-components
- Jest
UI & Systems
- Storybook
- Component Architecture
- Reusable Components
- Accessibility
- Design Handoff
- Figma
Languages
- English
- Spanish
- Catalan