Latest work
Bienvenido, Welcome, Bienvenue, Willkommen, Benvenuto, Bem-vindo, 欢迎, ようこそ, 환영합니다, Добро пожаловать, مرحبا, स्वागत है, Hoş geldiniz, Welkom, Καλώς ήρθατε
Sergio Soler. UX/UI Design, Front-end
and AI vibe coding at your project's service.
About me

UX/UI designer and Front-end developer with +9 years building digital products that actually work. I don't make pretty websites that don't convert, nor interfaces that look like they were made in 2015. I combine research, design, code and data so your digital project stops being a headache and starts delivering results.
Clients who have trusted me
I've worked with major brands and ambitious projects. From e-commerce to learning platforms, through landing pages that convert and corporate websites that don't make you cringe.
Some of my skills
Figma
Diseño UX/UI, prototipado interactivo y design systems. Mi herramienta principal para crear interfaces centradas en el usuario.
Adobe Creative Suite
Photoshop, Illustrator y XD para diseño gráfico, recursos visuales y edición de assets para proyectos digitales.
React
Desarrollo de interfaces interactivas y componentes reutilizables. SPAs modernas con arquitectura basada en componentes.
HTML5 / CSS3 / JS
Maquetación responsive, animaciones CSS, JavaScript vanilla y SASS/Less. La base de todo proyecto front-end sólido.
WordPress
Desarrollo de temas, plugins y soluciones a medida. Webs corporativas, e-commerce con WooCommerce y landing pages.
Webflow
Diseño y desarrollo visual sin código. Prototipado de alta fidelidad y sitios web listos para producción.
Miro
Research UX, workshops colaborativos, mapas de empatía, customer journeys y facilitación de sesiones de Design Thinking.
Hotjar & Smartlook
Analítica UX, mapas de calor, grabaciones de sesión y test A/B. Decisiones de diseño basadas en datos reales de usuario.
IA Generativa
Claude Code, ChatGPT y Gemini integrados en flujos de diseño y desarrollo. Prototipado acelerado y generación de código.
Bootstrap & SASS
Frameworks CSS para desarrollo ágil. Sistemas de grid, componentes responsive y preprocesadores para CSS escalable.
Have something random and sweet to brighten your day


And we keep going
Digital solutions built with brains, not templates.
How I work
First I understand your business, then I design. No jumping into layout without knowing what you actually need. I use Agile methodologies (Scrum/Kanban), generative AI tools and real data so every design decision makes sense.
I integrate AI (Claude Code, ChatGPT, Gemini) into my workflows to speed up prototyping by up to 40% and generate front-end code without losing quality. Measurable results: +22% conversion on landings, -18% form abandonment, +15% in checkout.
*Results obtained with different measurement tools: Hotjar and SmartLook.
{UX/UI Design}
Interfaces that engage and convert
I design user-centered interfaces with Figma, prototyping and validation with real data (Hotjar, Smartlook, A/B testing). I don't guess what works: I measure it. Responsive, fast websites (under 3 seconds load time) optimized to turn your visitors into customers.
Every interface I design and develop adapts to any screen. Mobile-first, always.
User-centered design with Design Thinking, research and validation with real data. No gut feelings.
Clean, appealing and functional interfaces. Figma, Adobe, InVision and Miro are my daily tools.
Front-end Development
Your design, turned into code without losing a single pixel
I build and develop with HTML5, CSS3, JavaScript, React and Bootstrap. If your design is in Figma, I turn it into pixel-perfect code. If you already have a WordPress, Prestashop or Webflow site, I optimize it to fly. Cross-browser, responsive and no surprises in production.
Responsive markup with clean, semantic and optimized code. SASS, Less, Bootstrap and vanilla JS.
Interactive interfaces with reusable components. Modern architecture for web applications.
Load times under 3 seconds. Minification, lazy loading and caching so your site flies.
Applied AI
Artificial Intelligence integrated into your workflow
I use Claude Code, ChatGPT and Gemini to speed up prototyping, generate front-end components and optimize design processes. It's not magic, it's knowing what to ask the AI and when to step in yourself. The result: less development time, more iterations and a better final product.
Fast generation of wireframes, components and layouts using smart prompts. From idea to prototype in minutes.
Front-end components, automation scripts and optimizations generated with AI and refined by hand.
AI integrated at every stage: UX research, visual design, development and testing. 40% reduction in prototyping time.
CMS & E-commerce
Your self-managed website, with no dependencies
WordPress, Prestashop, Webflow, Joomla... I master the most-used CMS platforms on the market. I build online stores, corporate websites and content platforms that you can manage yourself without calling me every time you want to change a photo.
Custom themes, bespoke plugins and optimized online stores. The world's most-used CMS, pushed to its limits.
Powerful e-commerce with Prestashop. Visual design with Webflow. The right tool for each project.
I deliver a website you can manage yourself: content, products, images and SEO with no code needed.
Image of the month

Let's make something
If you're looking for someone who can contribute from day one, I'd love to hear from you. Tell me what you're working on and let's see how I can fit into the team






