- Grunt · Gaspar Onesto
Hi! I am Grunt

Cybersecurity Engineer

About me My Blog

About Me

I'm Grunt!

Hey! I’m Gaspar, a Computer Science student from Buenos Aires 🇦🇷 with a passion for offensive security and applied research.

Currently, I focus on Application Security—helping dev teams secure their code throughout the SDLC. I’m experienced in Pentesting, DevSecOps, Cloud Security, and Consulting, backed by certifications like CPTS, PNPT, eJPT, and eWPT.

My main interests lie in R&D for exploit development, malware development, and vulnerability research. Outside of work, I’m always learning through CTFs, labs, and real-world engagements. If you love hacking internals or want to talk infosec, feel free to reach out!

Hacking Portfolio

My Career

Education

Computer Science

Universidad de Buenos Aires, FCEyN

2020 - Present

Hackademy: Fundamentals of Hacking and Defence

Cybersecurity bootcamp | More info

2021 - 2021

Ethical Hacking - Universitary Expert Course

Universidad Tecnologica Nacional | More Info

2020 - 2021

Fullstack WebApp development

Comunidad IT | More info

2020 - 2020

Work experience

Application Security Analyst

Veritran

03/24 - Currently Working Here as a part timer

Freelance Information Security Analyst

Freelance

03/23 - Currently Working Here

Security Consultant

Codefen

06/22 - Currently Working Here as a contractor

AppSec Engineer

Hackmetrix

04/22 - 03/24

DevOps Engineer

Craftech

05/21 - 04/22

Backend Developer

Eudaimonia

09/2020 - 11/2020

Skills

Ethical Hacking

OSINT

NodeJS

Python

DevOps / GitOps

Kubernetes

Docker

AWS

Java

Linux

C++ / C

SDLC & AppSec Principles

Projects

Certifications
EJPT-V2 EWPT-V2