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Miguel De La PeñaMD

Miguel De La Peña

Front-end Developer | UX/UI Designer

€110/day
Madrid, ES
3-7 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Miguel

🚀 Frontend Developer with +3 years creating digital experiences that matter

As a Front-End developer specializing in React and a UX/UI designer, I have led complete restyling projects that improved web performance by 30% and the user experience of corporate portals used by thousands of daily users.

💡 My approach combines:
✅ Technical Development (React, TypeScript, JavaScript ES6)
✅ User-Centered Design (UX/UI Research & Design)
✅ Performance Optimization and Cross-Platform Experience
  • Spanish

    Native or bilingual

  • English

    Conversational

Can work on-site
Madrid (up to 50km)

Experience

  • SAPIENS Iberia
    DEVELOPER
    June 2021 - June 2024 (3 years)
    Madrid, Spain
    Technical Leadership: I led a corporate portal restyling project, achieving a 35% improvement in usability and a 15% increase in user retention through the implementation of a modern and functional design. Performance Optimization: I restructured the JavaScript, Bootstrap, and JQuery codebase, reducing page load times by 30% using optimization techniques. Reactive Component Management: I designed and implemented custom components in React and TypeScript, ensuring a fluid user experience adapted to different browsers (multi-browser). Integration and Deployment: Automation of deployment pipelines in GitLab and configuration in production environments with AWS, reducing deployment times by 30%. Problem Solving: I identified and resolved critical errors in the Toyota Portal, improving system stability and scalability, which contributed to a 20% increase in customer satisfaction.
    JavaScript React.js JSP Ajax jQuery
  • HM HOSPITALS
    IT Technician
    February 2019 - July 2019 (5 months)
    Madrid, Spain
    Comprehensive Technical Support: I provided technical assistance to over 200 employees, resolving hardware and software issues in under 24 hours on average, which increased internal productivity. Systems Implementation: I installed and configured specialized medical systems, improving operational efficiency by 15% in healthcare processes. Preventive Maintenance: I managed preventive and corrective maintenance tasks, ensuring minimal downtime for critical systems.

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Education

  • Higher Degree
    GMQ TECH
    2021
    Grado superior
  • Intermediate Degree
    GMQ TECH
    2019
    Grado medio

Skill set

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