Freelancer profile translated to English.

Description

I am a UX Engineer and Frontend with over 10 years of experience building interfaces for pharma, banking/fintech, and e-commerce. I craft pixel-perfect designs from Figma/Sketch using semantic HTML, modern CSS (Flex/Grid, Tailwind or SCSS), and JavaScript/TypeScript, and turn them into reusable components in React/Next.js or Web Components (Lit).

My priority: accessibility (WCAG AA), performance (Lighthouse 90+), technical SEO, and clean, scalable code.

What I can contribute

- Responsive layout and design systems: component libraries, tokens, and documentation (Storybook).

- React/Next.js: pages, layouts, states, accessible forms, routing, SSR/SSG if applicable.

- Tailwind/SCSS and maintainable CSS architecture (BEM/Utility-first).

- Performance: fast loading, optimized images, Core Web Vitals.

- Real accessibility: semantics, ARIA, focus management, contrast, manual testing with screen readers.

- Lightweight integration with backend/APIs when needed (Node/Express/Mongo).

Available for fixed-price projects or hourly, remote from Spain.

Languages

Spanish
Native or bilingual
English
Fluent

Workplace preferences

Remote only

Primarily works remotely

GRUPO LETI
FRONTEND DEVELOPER
January 2020 - Today (6 years and 5 months)
Caracas, Venezuela
• Full-stack development of a custom digital platform using React (frontend) and Node.js + MongoDB (backend), ensuring scalability and maintainability.
• Designed and implemented modular, dynamic, and reusable components, promoting DRY principles and consistent interface patterns.
• Built secure administration areas with protected routes and session management, ensuring role-based access control.
• Applied best practices for responsive design and accessibility, using SCSS, Bootstrap, and semantic HTML to ensure WCAG-compliant interfaces.
• Integrated Firebase for media file management with custom logic for conditional rendering based on file type (e.g., images, videos, documents).
• Developed robust form validations, user feedback mechanisms, and structured error handling, improving user experience and reducing friction.
• Led real-time usability improvements, enabling the editorial team to publish and manage content efficiently with minimal technical support.
Web Design HTML5 MERN Stack Full Stack Development SASS/SCSS
INBENTA
UX ENGINEER
January 2022 - January 2025 (3 years)
Barcelona, Spain
• Web layout and programming with HTML5, CSS3/SCSS, and JavaScript using Bootstrap and PrimeReact.
• Frontend with React (and TypeScript), focusing on clean code, performance, and testing (unit, integration, and e2e).
• Accessible and responsive UX/UI (WCAG compliance), from wireframes and prototypes in Figma/Sketch to handoff for development; proficient in Photoshop and Illustrator.
• Participation in the full cycle under Design Thinking and Scrum, collaborating closely with multidisciplinary teams.
• Building REST APIs with Node.js and Express (when needed).
OPEN SPRING
WEB DEVELOPER CONSULTANT
January 2018 - January 2022 (4 years)
Madrid, Spain
• Led UX/UI planning and strategy for digital projects within the AMA Group, ensuring alignment with user-centered design principles.
• Orchestrated the design, implementation, and smooth execution of cutting-edge digital interfaces.
• Generated customized solutions for a wide range of digital needs, prioritizing functionality, usability, and visual consistency.
• Maintained a strong user-centric focus throughout the entire project lifecycle, from concept to delivery.
• Ensured all deliverables met rigorous quality and accessibility standards.
• Elevated the organization's design philosophy, enhancing digital presence and overall user experience across AMA Group platforms.