I'm a curious builder who enjoys understanding how systems work and solving real-world problems with technology.
With over 10 years of experience in software development, I specialize in full-stack web development, building scalable applications from frontend to backend.
I focus on developing modern web apps with React and Next.js, designing robust backend services with Node.js, and working with relational and NoSQL databases.
I care about building modular, maintainable and scalable systems, applying solid engineering principles to ship reliable software.
I also integrate AI capabilities into real products, including agent-based workflows and generative user interfaces.
- Building end-to-end applications with React & Next.js (Server Components & Server Actions)
- Designing backend systems with Node.js
- Working with Supabase (PostgreSQL) and MongoDB
- Building modular & scalable architectures for long-term maintainability
- Applying modern frontend best practices (performance, data fetching, state management)
- Developing AI-powered features, agents and generative UI
- Launching and iterating on independent software products
Freelance Senior Full-Stack Web Developer & Entrepreneur
2018 – Present
- Designing and delivering production-grade web applications (frontend + backend)
- Architecting APIs and scalable backend systems
- Working with relational and NoSQL databases
- Integrating AI capabilities into real-world products
- Collaborating with startups and digital businesses
- Developing cross-platform mobile apps with React Native
I’m open to:
- High-impact engineering roles
- AI-powered product collaborations
- Interesting technical challenges
📩 hi@juanjofr.com
🔗 LinkedIn: https://www.linkedin.com/in/juanjofr
𝕏 Twitter: https://x.com/juanjo_fr