Profile Picture - Juan Semprún

Juan Semprún

Dedicated Frontend Engineer with strong problem-solving skills, focused on creating exceptional products.

Madrid, Spain

Experience

Scalefast

Hybrid
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Frontend Engineer - Dev Core Team

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

Scalefast

Remote
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Frontend Engineer - Air360

  • 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

Zelenza

Remote
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Full Stack Developer

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

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

Zelenza

On Site
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Full Stack Developer

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

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

Meteoplay

On Site
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Junior Web Developer

Created and optimized internal and external meteorological apps

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

Education

Ironhack
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Full-Stack Web Development Bootcamp

MERN Stack

Skills

  • HTML
  • CSS
  • JavaScript / TypeScript
  • React / Next.js
  • Node.js
  • Playwright
  • Google Tag Manager