Full-Stack Software Engineer | Data Engineer | AI Enthusiast _

Hi! I'm Guillermo. I build full-stack applications and design data pipelines that help turn ideas into real products. I enjoy creating solutions that are both technically solid and user-friendly, from designing APIs and managing databases to developing frontends that feel intuitive.

I’m also passionate about AI and automation, exploring ways to make applications smarter and more efficient. My background in business and finance gives me a unique perspective on how technology can drive real impact.

When I code, I focus on making systems reliable, maintainable, and practical—whether it’s a backend service, a data workflow, or an interactive frontend.

Full-Stack Developer | Mar 2025 – Present

• 🎯 Led design and implementation of alliance system for time banking communities
• 🚀 Developed full-stack features using Ruby on Rails, PostgreSQL, JavaScript, and SCSS
• 📊 Built advanced data visualization tools with Highcharts and geospatial mapping
• 🔄 Managed complete software lifecycle from requirements through deployment on Render
• 🤝 Collaborated with open-source stakeholders through GitHub PRs and issue management

Software Engineer Intern | Jan 2025 – Mar 2025

• 💻 Developed responsive full-stack healthcare applications (Django + Svelte)
• 🔗 Engineered robust RESTful APIs connecting ML models with patient applications
• ⚡ Optimized database queries and UI components, improving performance and UX
• 🧪 Implemented comprehensive unit/integration testing for reliable healthcare systems
• 🏃‍♂️ Actively participated in agile development and cross-functional teams

Financial Analysis Manager | Mar 2021 – Dec 2023

• 📈 Managed financial administration for multiple government projects
• 💡 Developed solutions aligned with business and technical requirements
• 🤝 Collaborated with community leaders to provide tailored financial solutions

Sales Manager | Oct 2017 – Aug 2018

• 📊 Analyzed sales data and market trends for strategic decision-making
• 👥 Led and developed high-performing sales team with data-driven insights

MSc in Software Development for Web & Applications
Universitat Oberta de Catalunya (UOC) | 2024 – 2025

BSc Computer Science
UNIPRO, European Digital University | 2024 – Present

BSc in Business Administration and Management
University of Granada | 2011 – 2017

BSc in Law
University of Granada | 2011 – 2017

Leadership and Development Program
San Telmo Business School | 2017

🎖️ Official Contributor, TimeOverflow
Recognized for significant code contributions and feature development (April 2025)

🥇 Graduated with Highest Honors
Jose Martin Recuerda High School (June 2011)

• Spanish: Native
• English: Professional Working Proficiency

I'm always open to discussing new opportunities, collaborating on interesting projects, or just having a chat about technology and innovation. Whether you're looking for a dedicated developer, have an exciting project in mind, or want to explore the latest trends in AI and web development, let's connect!