Hi, I'm Juan Urueña 👋I build complete systems, not loose pieces.

Systems and Telecommunications Engineer. From the sensor to the model and from the landing page to deployment.

See the workLet's talk
Portrait of Juan Alejandro Urueña Serna

About

Who I am and how I work.

Systems and Telecommunications Engineer (UCP, 2026). I develop with AI agents under a written engineering cycle: define, plan, build, verify, review, ship. Nothing counts as done without evidence.

  1. 2025

    From the sensor to the model

    My degree project: four neural networks compared to detect faults in industrial machinery, with live predictions.

  2. 2026

    From the landing page to deployment

    Ten projects in production, across two countries. The full chain:

    Sites and landing pagesFunnels with capture and trackingAutomation and AI agents
My AI-agent workflow, documented on GitHub

My work

Projects you can open right now.

Swipe through: real clients first, then my own product, affiliate funnels, and demos.

Featured case

The ECMO funnel, end to end.

My brother ran the ads. The rest I built and connected myself.

  1. 01

    The problem

    A doctor with an audience, but no way to capture it.

  2. 02

    What I built

    A landing page that trades an ebook for an email and takes the lead to the WhatsApp group where he sells.

  3. 03

    How it connects

    Static site on Cloudflare's edge; a single Function writes leads to Supabase. GA4, Meta Pixel, and Clarity measure the funnel.

250+sign-ups captured
~170people in the WhatsApp group
See the funnel

Engineering

Before the funnels, and alongside them.

Degree project · Universidad Católica de Pereira

Evaluation of Deep Learning algorithms for a predictive maintenance system using Design of Experiments

Compared RNN, LSTM, CNN, and TCN with Design of Experiments and built the real-time prediction web software.

  • Python
  • RNN
  • LSTM
  • CNN
  • TCN
  • Design of Experiments

Own product · paused

HandOff Chat: AI agents for WhatsApp support

Landing and web app with authentication and a database, plus AI agents built on n8n with the official WhatsApp Business API and models via OpenRouter.

  • Next.js
  • Supabase
  • n8n
  • WhatsApp Business API
  • OpenRouter

Skills

Five years of engineering school, by depth.

What I use today

  • Next.js
  • TypeScript
  • React
  • Astro
  • Tailwind
  • shadcn/ui
  • Supabase
  • PostgreSQL
  • Cloudflare Functions
  • Cloudflare Pages
  • Vercel
  • Coolify
  • Git
  • n8n
  • GA4
  • Meta Pixel
  • Microsoft Clarity

Education and research

AI and data

  • Python
  • TensorFlow
  • PyTorch
  • scikit-learn
  • Pandas
  • Design of Experiments

Backend, web, and systems

  • Java
  • Spring Boot
  • FastAPI
  • Node.js
  • Angular
  • MySQL
  • MQTT
  • Arduino

Exploring

Security

  • Hack The Box
  • OverTheWire
  • nmap

Contact

Have something to build or connect?

Write to me and I will reply. My public code is on GitHub.

Résumé

The full detail, in PDF.

Résumé in EnglishCV en español