Juan Semprún

Working independently as a Frontend Engineer, delivering tailored web solutions for clients. Focused on building performant, accessible, and well-crafted digital products end to end.

Technologies: HTML, CSS, Tailwind CSS, TypeScript, React, Astro

Developed and implemented new features for Oral-B e-commerce platforms across Spain and France, while providing technical support and troubleshooting solutions.

Technologies: HTML, CSS, TypeScript, Node.js, Angular, GitLab, Builder.io, Contentful

• Built a demo website to showcase Air360's capabilities
• Created automated data generation scripts to simulate real-world scenarios for the demo website
• Led the development and deployment of the Air360 Shopify plugin
• Contributed to the development of automated error tracking feature, enabling users to quickly diagnose and resolve issues
• Technical support for Air360 implementation in Tag Management Systems like Google Tag Manager and TagCommander

Technologies: React, Next.js, Playwright, Google Tag Manager

Built and optimized internal and external websites for the Spanish Air Force.

Technologies: HTML, CSS, Bootstrap, JavaScript, jQuery, OpenCMS

Developed internal tools to optimize call center workflows to improve agent performance

Technologies: HTML, CSS, Bootstrap, JavaScript, PHP, MySQL, PureCloud

Created and optimized internal and external meteorological apps

Technologies: HTML, CSS, Bootstrap, JavaScript, PHP, MySQL

Intensive bootcamp focused on the MERN stack. Covered modern web development practices, RESTful APIs, authentication, deployment, and agile methodologies through hands-on projects.

Comprehensive training in designing and developing dynamic web applications using HTML, CSS, JavaScript, jQuery, PHP, and MySQL.

Completed first-year Computer Engineering curriculum, covering core subjects such as programming, mathematics, and systems architecture.