Hi, I'm SebastiánI build things for the web.
Six-plus years in IT support taught me to understand both users and systems. Now I build web and mobile apps with React, TypeScript, Node.js and Python.
Technologies I work with
- HTML
- CSS
- JavaScript
- TypeScript
- React
- Node.js
- Python
- Git
const developer = {
name: "Sebastián",
stack: ["React", "Node.js", "Python"],
experience: "6+ years in IT",
status: "Open to opportunities",
};
From closing tickets to writing the software
I started out fixing computers and working a help desk. That taught me how technology fails day to day and how users feel when something breaks. Today I'm studying Computer Engineering and building tools for real problems.
See my experience- 6+
- Years in IT
- 4
- Own projects
- 5
- Banks integrated
- 3
- Backend languages
Technologies I use
Frontend
- React
- TypeScript
- Angular
- Next.js
- Tailwind CSS
- HTML y CSS
Backend
- Node.js
- Express
- Python
- FastAPI
- PHP
- APIs REST
Data
- PostgreSQL
- Prisma
- MongoDB
Mobile
- Kotlin
- Android
- PWA
Infrastructure
- Docker
- Linux
- Git
- GitHub Actions
- Cloudflare
- Active Directory
- Redes y VPN
Applied AI
- Gemini
- Groq
- OCR
My recent work
React / TypeScript / Tailwind
Control de Gastos
01
Control de Gastos
Personal finance and fitness in one app, with expenses logged automatically from bank notifications.
View projectReact / TypeScript / Tailwind
MiNAS
02
MiNAS
A web file explorer for a NAS, with no VPN and without exposing SMB to the internet.
View projectPHP / JavaScript / jQuery
HelpDesk
03
HelpDesk
A help desk ticketing system with Microsoft Teams and email notifications.
View projectNext.js / TypeScript / Tailwind
Sitios para negocios locales
04
Sitios para negocios locales
A reusable template to ship bilingual sites with WhatsApp bookings in days, with free hosting.
View projectExperience
Jun 2025 – present
IT Technician
Netmask
- On-site and remote hardware, software and connectivity support.
- User accounts and permissions in Active Directory.
- Windows, Linux, WiFi, VPN and remote access configuration.
- Backups, data restoration and support for continuous deployments.
Jun – Nov 2024
Development Intern
Finaktiva
- Angular interfaces and components consuming APIs.
- Database support in Node.js development environments.
- Responsive layouts with HTML, CSS and JavaScript.
Jan 2021 – May 2024
IT Technician
Soporte S.A. Field Support
- Incident handling through a ticketing help desk.
- Printer support, including label printers for continuous operations.
- Support for Polycom conferencing equipment and Cisco network devices.
Jan 2020 – Dec 2021
Systems Technician
Colsoft
- Equipment maintenance, backups and data recovery.
Jan 2019 – Dec 2020
Systems Apprentice
Inscra S.A.S.
- Preventive and corrective maintenance, office software, networks and servers.
Education
In progress, graduating 2029
Computer Engineering
Universidad de Envigado
2023
Information Systems Development Technologist
SENA
2020
Systems Technician
CEFIT
Have an opening or a project in mind?
I'm looking for my first full stack developer role, in Colombia or remote. I also build websites for local businesses.
Get in touchTransition from IT support to full stack development
- 2019Ticket opened: systems apprentice
- 2021Three-plus years on a help desk
- 2024First developer internship
- NowLooking for my first full stack role
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