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I’m a Frontend Developer who loves turning ideas into clean, responsive interfaces. I specialize in React, JavaScript, HTML5, and CSS3, and I enjoy building scalable web apps that are accessible and user-friendly. I collaborate closely with product managers, designers, and backend engineers to deliver intuitive experiences. I’m proficient in API integration, state management (Context API), and UI/UX best practices, and I’m passionate about modern frontend development and delivering clean, reusable code in fast-paced environments.…I’m a Frontend Developer who loves turning ideas into clean, responsive interfaces. I specialize in React, JavaScript, HTML5, and CSS3, and I enjoy building scalable web apps that are accessible and user-friendly. I collaborate closely with product managers, designers, and backend engineers to deliver intuitive experiences. I’m proficient in API integration, state management (Context API), and UI/UX best practices, and I’m passionate about modern frontend development and delivering clean, reusable code in fast-paced environments.

Leonardo A. Cornieles Mas Y Rubi

Web Developer, Front-End Developer, Back-End Developer, +5

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I’m a Frontend Developer who loves turning ideas into clean, responsive interfaces. I specialize in React, JavaScript, HTML5, and CSS3, and I enjoy building scalable web apps that are accessible and user-friendly. I collaborate closely with product managers, designers, and backend engineers to deliver intuitive experiences. I’m proficient in API integration, state management (Context API), and UI/UX best practices, and I’m passionate about modern frontend development and delivering clean, reusable code in fast-paced environments.…I’m a Frontend Developer who loves turning ideas into clean, responsive interfaces. I specialize in React, JavaScript, HTML5, and CSS3, and I enjoy building scalable web apps that are accessible and user-friendly. I collaborate closely with product managers, designers, and backend engineers to deliver intuitive experiences. I’m proficient in API integration, state management (Context API), and UI/UX best practices, and I’m passionate about modern frontend development and delivering clean, reusable code in fast-paced environments.

Available to hire

I’m a Frontend Developer who loves turning ideas into clean, responsive interfaces. I specialize in React, JavaScript, HTML5, and CSS3, and I enjoy building scalable web apps that are accessible and user-friendly.

I collaborate closely with product managers, designers, and backend engineers to deliver intuitive experiences. I’m proficient in API integration, state management (Context API), and UI/UX best practices, and I’m passionate about modern frontend development and delivering clean, reusable code in fast-paced environments.

Skills

Experience Level

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Language

Spanish; Castilian

Fluent

English

Advanced

Work Experience

Ingeniero de Computación - Pasantías Ocupacionales at Alcaldía del Municipio Lagunillas

January 28, 2025 - April 4, 2025

Desarrollo de un Sistema de Gestión de Actividades como proyecto de culminación de pasantías. Soporte Técnico a cada uno de los departamentos dentro del edificio. Reparación y Mantenimiento a los equipos informáticos.

Frontend Developer (Internship) at ALCALDÍA DEL MUNICIPIO LAGUNILLAS

April 1, 2025 - October 16, 2025

Developed a Web-Based Activity Management System using modern front-end principles. Collaborated with cross-functional teams to provide technical support and improve workflows. Maintained and troubleshot IT systems, ensuring reliability and performance.

Frontend Developer - Internships at Alcaldía del Municipio Lagunillas

January 1, 2025 - April 1, 2025

Developed a Web-Based Activity Management System using modern frontend principles. Collaborated with cross-functional teams to provide technical support and improve workflows. Maintained and troubleshot IT systems, ensuring reliability and performance.