Freelance front-end web developer.

Cutting-edge Web Development for Your Online Success.

Hello, I'm Juneiker Castillo, I develop high-performance websites that guarantee lightning-fast speeds ⚡.

Boost your sales and conversions by providing your customers with an ultra-fast website they won't want to leave.

Let's start now!
React js LogoNext js LogoGatsby js LogoQwik LogoRemix LogoAstro Logo


Take a look at the personal and business applications I've recently worked on.


Do you want to work together? Do you have questions? Just want to talk with me? Feel free to contact me!"

Latest projects.

un monitor de computadora que muestra un sitio web. El sitio web es en español y es para generar paletas de colores. El sitio web tiene un fondo blanco y un encabezado azul. El encabezado tiene una barra de búsqueda y un botón que dice “Generar paleta”. El contenido principal del sitio web es un formulario con un selector de color y una lista de opciones de color. Debajo del formulario, hay una sección con un gradiente de colores y sus correspondientes códigos hexadecimales. El monitor está sobre un fondo azul y es un diseño moderno de pantalla plana.

Online color palettes.

A website that generates online color palettes and provides other useful tools for designers and developers.

página de inicio de este sitio web. El sitio web está en español y el texto dice “Desarrollo Web de Vanguardia para tu Éxito en Línea”. El fondo es negro.Hay tres botones en la página: “Comencemos Ahora!”, “Proyectos” y “Contacta”. El logotipo del sitio web es una icono parecido al del framework react js mas el texto juneikerc.com, El sitio web es la página web personal de Juneiker Castillo.


My personal website created with Prismic CMS as the content management system and Qwik as the framework.

Who am I?

Photograph of Juneiker Castillo.

I am Juneiker Castillo, a passionate front-end web developer deeply in love with programming and creating fast, scalable, and modern websites—a JavaScript enthusiast and a React.js lover ⚛️.

I have a strong background in web development and I'm always on the lookout for new challenges that push me further. 🤓

What are my services?

As a web developer, I can create high-performance applications and websites using various technologies, ranging from Next.js or Remix to Astro, Gatsby.js, and Qwik.

Explore my range of specialized services in web development that cater to your unique needs:

Web Development Blog

In this section, I write practical tutorials for different types of technologies, ranging from HTML and CSS to JavaScript and React. From basic concepts to advanced tips.

Explore and Discover

In this section, I step away from practical code and write a rich variety of articles covering everything from tips to detailed guides, step-by-step tutorials, and valuable learning lessons.

Developer Hub

In this section, I write reviews about key tools and services in the current web development landscape, such as Headless CMS, web application hosting, and JavaScript frameworks.