hi, I'm

Juan C.
Guaña

Developer — Full Stack & AI Engineer

I build complete web products and implement AI for businesses — LLMs, RAG and agents, from prototype to production. Based in Quito, Ecuador.

View work ./contact

// 01. expertise

What I do

Frontend Development
React · Next.js

Passionate about UI/UX. Over 7 years building accessible, performant interfaces.

  • React
  • Next.js
  • TypeScript
  • Redux
  • Tailwind CSS

Backend Development
Node.js · APIs

Robust, scalable APIs, data modeling and production-ready services.

  • Node.js
  • Express
  • GraphQL
  • PostgreSQL
  • MongoDB

Artificial Intelligence
LLMs · RAG · Agents

I implement AI for businesses: language models, RAG systems and agents integrated into real products.

  • OpenAI · Claude
  • LangChain
  • RAG
  • Embeddings
  • Python

Cloud & DevOps
AWS · GCP

Deployment, CI/CD and infrastructure so everything ships to production without surprises.

  • AWS
  • GCP
  • Docker
  • CI/CD
  • Vercel

Sometimes the best way to solve a problem is to help others.
— Uncle Iroh, 'Avatar: The Last Airbender'

// 02. work

My work

Web systems and AI solutions deployed for real clients in health, logistics and beyond.

screenshot: AVIS X

web_app — health

AVIS X

Ambulatory health management system. Improves quality of care and communication between professionals and patients.

  • React
  • Redux
  • Sass
  • FullCalendar
screenshot: Transpoint Óptimo

web_app — logistics

Transpoint Óptimo

Fleet monitoring system. Visualizes land transport routes for operational decision-making.

  • React
  • Redux
  • Ant Design
  • Google Maps
screenshot: AI project

ai_solution — business

AI Project

coming soon

Reserved space — share your AI project details and I will add them here.

  • LLMs
  • RAG
  • Agents
screenshot: AI project

ai_solution — automation

AI Project

coming soon

Reserved space — share your AI project details and I will add them here.

  • Python
  • OpenAI
  • Integrations

// 03. experience

Professional experience

  1. React Front-end Developer @ InitGrammers

    2019 — Present

    📍 Quito, Ecuador

    I write modern, performant and robust code for a diverse array of client and internal projects, communicating daily with engineers, designers and clients.

    • JS
    • TS
    • React
    • Next.js
    • Redux
    • GCP

  2. IT Engineer @ Huawei Technologies

    2019

    📍 Quito, Ecuador

    Implementation and delivery support for IT projects: physical servers, storage and private cloud, working with international teams.

    • Servers
    • Storage
    • Private cloud

  3. IT Engineer @ Etistel

    2018 — 2019

    📍 Quito, Ecuador

    IT project support and development of the company's website with React, Next.js, Firebase and Sendgrid.

    • React
    • Next.js
    • Firebase
    • Sendgrid

// 04. blog

Articles & translations

I write and translate technical content for the Spanish-speaking community.

View all articles on freeCodeCamp

// 05. contact

Have a project in mind?

Web development since 2018, React since 2019. Today I combine full stack development with applied AI in real products, and contribute as a translator and proofreader for the freeCodeCamp curriculum in Spanish.

Available for full stack roles and AI implementation projects. Send me an email or a DM — I reply within 24 hours.

juanc.guana@gmail.com
Portrait of Juan C. Guaña