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I am a Frontend Developer with solid expertise in JavaScript, React, and Next.js, focused on building fast, accessible, and maintainable web applications. I have experience in modern frontend architecture, SSR strategies, and work seamlessly with backend teams. Skilled in migrating legacy systems and optimizing performance across devices, I am currently pursuing a Master’s degree in Artificial Intelligence & Data Science, developing hands-on skills with Python, SQL, NumPy, and data visualization tools like ggplot. I am committed to writing clean, scalable code and leveraging data-driven insights to deliver impactful digital experiences aligned with business goals. I thrive on collaboration, usability, and accessibility to ensure high-quality frontend results that meet both user and business needs.…I am a Frontend Developer with solid expertise in JavaScript, React, and Next.js, focused on building fast, accessible, and maintainable web applications. I have experience in modern frontend architecture, SSR strategies, and work seamlessly with backend teams. Skilled in migrating legacy systems and optimizing performance across devices, I am currently pursuing a Master’s degree in Artificial Intelligence & Data Science, developing hands-on skills with Python, SQL, NumPy, and data visualization tools like ggplot. I am committed to writing clean, scalable code and leveraging data-driven insights to deliver impactful digital experiences aligned with business goals. I thrive on collaboration, usability, and accessibility to ensure high-quality frontend results that meet both user and business needs.

Gustavo Jaen Vidal

Front-End Developer, Web Developer, Programmer, +2

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I am a Frontend Developer with solid expertise in JavaScript, React, and Next.js, focused on building fast, accessible, and maintainable web applications. I have experience in modern frontend architecture, SSR strategies, and work seamlessly with backend teams. Skilled in migrating legacy systems and optimizing performance across devices, I am currently pursuing a Master’s degree in Artificial Intelligence & Data Science, developing hands-on skills with Python, SQL, NumPy, and data visualization tools like ggplot. I am committed to writing clean, scalable code and leveraging data-driven insights to deliver impactful digital experiences aligned with business goals. I thrive on collaboration, usability, and accessibility to ensure high-quality frontend results that meet both user and business needs.…I am a Frontend Developer with solid expertise in JavaScript, React, and Next.js, focused on building fast, accessible, and maintainable web applications. I have experience in modern frontend architecture, SSR strategies, and work seamlessly with backend teams. Skilled in migrating legacy systems and optimizing performance across devices, I am currently pursuing a Master’s degree in Artificial Intelligence & Data Science, developing hands-on skills with Python, SQL, NumPy, and data visualization tools like ggplot. I am committed to writing clean, scalable code and leveraging data-driven insights to deliver impactful digital experiences aligned with business goals. I thrive on collaboration, usability, and accessibility to ensure high-quality frontend results that meet both user and business needs.

Available to hire

I am a Frontend Developer with solid expertise in JavaScript, React, and Next.js, focused on building fast, accessible, and maintainable web applications. I have experience in modern frontend architecture, SSR strategies, and work seamlessly with backend teams. Skilled in migrating legacy systems and optimizing performance across devices, I am currently pursuing a Master’s degree in Artificial Intelligence & Data Science, developing hands-on skills with Python, SQL, NumPy, and data visualization tools like ggplot.

I am committed to writing clean, scalable code and leveraging data-driven insights to deliver impactful digital experiences aligned with business goals. I thrive on collaboration, usability, and accessibility to ensure high-quality frontend results that meet both user and business needs.

Skills

Experience Level

Expert

Expert

Expert

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Intermediate

Beginner

Work Experience

Frontend Developer at El Corte Ingles

January 1, 2023 - August 21, 2025

Developed responsive web interfaces using HTML5, CSS3, SCSS/SASS, JavaScript, jQuery, and React.js. Structured semantic and accessible HTML content to improve SEO and user experience. Adapted and implemented cross-browser and cross-device compatible layouts ensuring design consistency. Managed version control and team collaboration with Git and feature branching workflows.

Frontend Developer at Click & Go Holidays

January 1, 2023 - Present

Led the migration of the frontend from a legacy PHP architecture to Next.js, using TypeScript, Storybook, Jest, and Cypress. Developed new user-facing features focused on usability, performance, and cross-device compatibility. Created reusable and consistent UI components compatible across major browsers and platforms. Collaborated closely with the design team to ensure technical feasibility of UI/UX designs. Partnered with backend developers to define API contracts, resolve integration issues, and maintain code quality. Promoted best practices in usability, accessibility, automated testing, and maintainable frontend architecture.

Data Engineer at Merkle

April 1, 2022 - August 21, 2025

Designed customized digital measurement solutions tailored to client requirements. Configured and implemented digital analytics tools including Google Tag Manager and Google Analytics. Validated and audited analytics setups for accurate data collection and reporting. Created tailored reports and dashboards according to business needs. Delivered training sessions on analytics tools and implementation both in-person and remotely. Provided technical support and troubleshooting for analytics and tracking issues.

Frontend Developer at Alma Ventures LLC

September 1, 2021 - August 21, 2025

Built websites using JavaScript, HTML5, and CSS3 following standard best practices. Collaborated with graphic designers and operations/marketing teams to produce, update, and maintain websites. Managed content with WordPress and other CMS platforms ensuring site performance and accuracy. Created, edited, and designed web content aligned with brand guidelines and UX principles. Reviewed and improved existing code while staying current with web development trends and technologies.