World 01 · The Web · 2019
Where it all began.
My first lines of code at Cesde: HTML, CSS, JavaScript, PHP and MySQL. Pages that taught me how the web really works.
- HTML5
- CSS3
- JavaScript
- PHP
- MySQL
- Bootstrap
A story in six worlds
This is the story of the engineer who turns them into software. Scroll to travel through the worlds he has built in.
Scroll to travel
World 01 · The Web · 2019
My first lines of code at Cesde: HTML, CSS, JavaScript, PHP and MySQL. Pages that taught me how the web really works.
World 02 · React · 2021
Academia Geek bootcamp: React, Redux and Firebase in team sprints. Then my first developer job, where I grew for four years.
World 03 · TypeScript & Next.js · 2023
Type-safe from front to back, server rendering and API routes: products that are fast, easy to find and hard to break.
Going deeper in private study repos: TypeScript · Next.js · Node.js
World 04 · Java & Spring Boot · 2025
APIs and integrations that scale, built with Java, Spring Boot and Node.js, in fintech teams alongside QA, product and business.
World 05 · Cloud & AI · 2026
Google Cloud, Vertex AI and AI agents. Today I work as a Forward Deployed Engineer: close to the business, turning real needs into software.
● World 06 · Production · now
Mercatto SaaS: Point-of-sale and sales management SaaS for supermarkets and fruit & vegetable stores. Each business registers its own company, employees sign in with Google or Apple, and new staff wait for admin approval.
Also shipped
Voix de la Beauté 2026
Beauty editorial platform with an admin panel, user roles and its own REST API on Firebase Functions written in TypeScript.
VentasTell 2025
Sales software for a store that sells mobile phones and technology: products, customers and every sale in one place.
Geek Platform 2021
Learning platform built as a team during the Academia Geek bootcamp, working in sprints with React, Redux and Firebase.
Some repositories are private because they hold code for real businesses in production and my own commercial products. Email me and I will gladly give you access.
The engineer behind the story

Jorge Quintero
Forward Deployed Engineer · Fintech
Medellín, Colombia
alejandrojj2018@gmail.com