hello, i'm

eljefe

cybersecurity specialist and polyglot developer with expertise in OSINT and penetration testing. passionate about building secure, scalable applications and uncovering digital footprints through innovative reconnaissance techniques.

Experience

Lead Developer at csint.ing

2025 - Present

In 2025, I started developing csint.ing, a comprehensive OSINT platform designed for digital investigators and security researchers. The platform integrates multiple data sources and provides advanced reconnaissance tools for ethical intelligence gathering and threat analysis.

Self-taught Developer

2020 - 2022

Started my coding journey, teaching myself programming fundamentals and web development. Focused on learning JavaScript and Python while building small projects to strengthen my skills. This period laid the foundation for my career in software development and cybersecurity.

Technologies & Tools

TypeScript
JavaScript
Python
React
Next.js
Node.js
C#
C++
C
Rust
Go
PHP
Ruby
Perl
MySQL
MongoDB
Git
GitHub
HTML
CSS