Coderhouse
Professor · AI Automation 2026 — now
Teaching how to automate processes with artificial intelligence and code.
01 / AboutPortfolio · 2026
I'm Juanca.
Product Engineer
I build digital products end to end: from deciding what to build to putting it in people's hands.
For 6+ years I've worked on product teams in banking, streaming, travel, legal tech and fintech. I started in frontend at Santander and grew into full-stack and product work: payment platforms, Smart TV playback and generative-AI workflows.
Along the way I started building my own products: Buenard, a habit app with 200+ active users, and Pronty, a game that teaches kids to use AI. I also teach AI process automation at Coderhouse.
02 / Experience
2021 — todayTakenos
Full Stack Engineer 2026
Built the B2B platform from scratch on top of the core payments engine, reporting to the CPO: payroll and corporate cards for Bolivia.
Provincia ART
Full Stack Engineer 2025
Integrated generative AI to process court rulings, handling 100+ new cases and 1,000+ status changes a month, plus the back office to manage them.
Personal Flow
Software Engineer 2024–25
Playback frontend for Smart TV and web, focused on performance and architecture.
SKY Airline
Software Engineer 2024
Full stack on Ancillaries: rebuilt the app that sells travel packages.
Santander
Frontend Engineer 2021–23
Shipped ~10 MVPs that replaced the legacy e-cheque system for business clients, and improved accessibility across digital banking.
03 / Work
My own productsevery day.
Buenard
Native iOS app for training, nutrition and habits. 200+ active users.
About the project
My role: founder. Product, design and iOS development in SwiftUI, from idea to App Store. The Today screen brings together steps, meals, workouts, supplements and fasting, with streaks and a weekly ranking between users.
Endless curiosity.
Pronty
A 10-minute daily game that teaches kids 8–14 to use AI to study, not to copy.
About the project
My role: founder. Product, design and development with Expo and React Native, plus the web in Astro and Supabase. No generative AI inside: the guide character runs on hand-written rules, so it's safe for kids. Everything for adults sits behind a PIN.
Try the demo04 / Contact
Consulting · Co-foundingNow and then I join projects as a consultant or co-founder. Reach out if…
…you're building a business, not just a website.
I care about what happens after launch: who uses it, why they come back and whether the product pays for itself. If you need a landing page put together in an afternoon, I'm not the right person.
…you want to measure the real impact on revenue.
Every feature should move a number that matters: activation, retention, conversion or revenue. We define it before building, measure it and review it together.
…you want quality, not a product rushed out with AI.
I use AI every day, as a tool rather than a shortcut. The result has to feel crafted: fast, accessible, consistent and easy to keep growing.
…you need a technical partner, not just extra hands.
As a consultant, I help you decide what to build and how. As a co-founder, I own product and technology alongside you. Either way, I'm committed to the outcome.