Software development
Custom web applications and systems: fast, maintainable and well designed, from idea to production.
About
I'm a systems engineer and software developer. I build modern web products, support teams as a consultant, and study offensive and defensive security so that everything that gets built, holds up. I'm also proficient in English.
Services
Consulting
Architecture, technical review and guidance to help you make better technology decisions.
Cybersecurity
Attack surface review, best practices and hardening for web applications and sites.
Tools
Development
- TypeScript
- React
- Astro
- NestJS
- Tailwind CSS
- Node.js
- Python
- SQL
Security
- Burp Suite
- Nmap
- Wireshark
- OWASP
- Kali Linux
Infrastructure
- Linux
- Docker
- Git
- GitHub Actions
- Vercel
Projects
01IDSN
FEVRIPS · IDSN
RIPS system of the Departmental Health Institute of Nariño (IDSN).
Visit site02IDSN
SIVAT · IDSN
IDSN web system with login-based access.
Visit site03Website
Rastreo Satelital
Website for Sistemas Virtuales: GPS tracking and vehicle monitoring services.
Visit site04E-commerce
Store21
Online streetwear store with catalog, cart and checkout via WhatsApp.
Visit site05App
Max — Finance App
Personal finance application.
In developmentCybersecurity
Hands-on practice and my own tools to understand how a system is attacked and how it is defended.
Passive analysis: one plain GET request is made to read the public response headers and the certificate. No ports are scanned and no vulnerabilities are probed. Use it on your own sites or with the owner's permission. Addresses and results are not stored in any database.
Analyzing…
Contact
Let's talk.
Have a project, need consulting or a security review? Drop me a line.
Email me
santiago.jojoan@icloud.com