Hey! I'm Juan Hernández

Zurich, Switzerland 🇨🇭 Swiss B permit · no sponsorship required

Experienced professional in digital solutions development with +10 years of experience, specializing in delivering high-quality products across a wide range of technologies. My career has been built on designing and implementing software solutions, where I have applied agile methodologies, actively participated in code reviews, and contributed to creating stable and efficient web environments. 🚀

Experience

  1. Senior Developer

    autoSense A.G

    Zurich, Switzerland 🇨🇭

    I make key contributions to the charging backend that powers more than 1 million fast-charging stations across Switzerland and Europe. I also lead the planning, development and maintenance of services built from scratch for Mazda, as well as the company's internal CRMs.

  2. Lead Software Developer

    Idearium 2.0 | Porsche Ibérica

    Madrid, Spain 🇪🇸

    I lead the engineering and product department, developing tools and leading an efficient team that has achieved an 80% reduction in digital resource costs such as servers and databases through optimization of the technological infrastructure.

  3. Senior Software Developer

    Rented.com (now Track)

    San Francisco, USA 🇺🇸

    I optimized and maintained the ART dynamic pricing prediction tool using AI, improving efficiency and price customization for tourist accommodations. Additionally, I successfully developed and implemented more than 40 vacation rental platforms in record time, enhancing the system's functionality and performance.

  4. Senior Software Developer

    Stellantis (PSA)

    Madrid, Spain 🇪🇸

    I designed and developed innovative tools to optimize the creation of marketing campaign trackers. I implemented fully operational scripts on more than 50 websites in record time. I led my team towards improving their testing and automation techniques, encouraging the development of clean and efficient code.

Previous experiences

  1. Full Stack Web Developer

    BTS Group A.B

  2. Full Stack Web Developer

    Ticsmart S.L (Google Accelerator)

  3. Freelance Web Developer

    J&E Editorial 2005

Education

Higher Technical Degree in Computer Science (TSU)

IUTEPAL, Maracay, Venezuela

Databases, Development environment, Training and job orientation, Markup language and information management system, Programming, Computer systems

Studies completed in 2017. Diploma issued in 2025 following the institution's closure in Venezuela. View diploma

Technical Skills

  1. TypeScript / JavaScript (Node.js)
  2. AWS (ECS, SQS, SNS, CloudWatch, EC2, RDS, S3, Route 53)
  3. Google Cloud Platform (App Engine, Cloud Storage)
  4. Databases (PostgreSQL, SQL, MongoDB)
  5. PHP (Laravel, Symfony)
  6. Python (Django, Flask, Pandas)
  7. Frontend (React.js, Vue.js, Next.js, Tailwind CSS, HTML/CSS, SASS/LESS)
  8. Git/GitHub

Certifications

  1. Mastering JavaScript. Udemy, Nov 2023
  2. AI Basics, Platzi, Oct 2023
  3. Arc Certified Remote Developer. Arc.dev, 2022
  4. Backend for websites, Cesica. 2017
  5. Frontend Web Design, Cesica. 2017

Projects

autoSense — Connected Fleets & EV Charging

autoSense — Connected Fleets & EV Charging

  • Node.js
  • TypeScript
  • AWS
I maintain the backend infrastructure behind a network of more than 1 million charging stations across Switzerland and much of Europe, along with the services powering the multiple mobile apps and the interconnectivity that links companies, their fleets and B2C drivers.
Porsche Experience

Porsche Experience

  • Vue.js
  • Tailwind CSS
  • Laravel
The Porsche Experience platform offers a range of exclusive driving experiences with Porsche. It features a management panel for users, events, dates, and reservations. Built from scratch using Vue.js, Tailwind, and Laravel.
Rented.com ART — Vacation Rental Pricing

Rented.com ART — Vacation Rental Pricing

  • Vue.js
  • Tailwind CSS
  • Node.js
This tool, used by over 50,000 users, is designed to optimize pricing strategies in the tourist accommodation sector. Developed with Vue.js and Tailwind CSS for the frontend and Node.js for the backend, it efficiently handles a high volume of concurrent users. It focuses on AI-driven price optimization, considering various market factors.

Languages

  1. Spanish Native
  2. English (C1)
  3. German (A2, aiming for B1 in 2027)

References

  1. Andrew McConnell

    Andrew McConnell

    (Rented.com) Co-Founder & CEO Alively | WSJ Bestselling Author | TEDx Speaker

    "I feel fortunate to have had the opportunity to work with Juan for more than a year and to see in practice that his work product and way of working matched the mindset he conveyed in that first meeting. Juan is a "can-do" problem solver who always looks for new and additional ways to contribute. He is a valuable addition to any team."

    View on LinkedIn
  2. Javier Barrón

    Javier Barrón

    (Stellantis) Technical Lead (Web Technologies)

    "I have had the opportunity to work with Juan and it has been a very rewarding experience. He is an excellent developer, capable of tackling complex problems and solving them efficiently and quickly. His ability to adapt, his team spirit and his kindness make him a highly recommendable professional."

    View on LinkedIn