Giulia R.

Senior Cyber Security Engineer – AppSec Pentester

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São Paulo, Brazil

Experience

May 2025 - Present
8 months

Senior Cyber Security Engineer – AppSec Pentester

AB InBev

  • Penetration testing in AB InBev Ambev’s product environments.
  • Offensive security operations and code reviews of critical global applications.
  • Collaborating with development teams on security issues.
  • Innovating the tech stack.
  • Linux, OAuth2, WebSockets, Azure, Active Directory, Nginx, XAMPP, firewalls, APIs, web applications.
Feb 2024 - May 2025
1 year 4 months
São Paulo, Brazil

Cyber Security Analyst – Red Team

Segura São Paulo

  • White, gray, and black box pentesting of the Senhasegura application and its runtime environments.
  • Large-scale testing in government and critical services environments.
  • Incident response.
  • Research on security and innovation in software architecture and cloud networks.
  • Troubleshooting critical issues.
  • Linux, OAuth2, Wazuh, WebSockets, AWS, PHP, Nginx, Docker, clustering, XAMPP, AppArmor, APIs, web applications, low-level systems.
Nov 2023 - Jan 2024
3 months
São Paulo, Brazil

Pentester – Head of Offensive Security

Spivit Global Technologies Americana

  • Established the offensive security and SaaS departments.
  • Web application and network pentesting.
  • Set security standards and policies for the company and clients.
  • Designed and delivered security awareness programs.
  • Configured Sophos Firewall and endpoint security environments.
  • Linux, Microsoft Azure, Active Directory, NAS, firewalls, XDR, XAMPP.
Apr 2021 - Present
4 years 9 months

Bug Bounty Hunter

Bugcrowd and HackerOne

  • Pentesting companies enrolled in bug bounty programs.

Summary

Led the creation of an offensive security department at a mid-sized company in Brazil, and have helped secure critical environments. I’m passionate about free software and a privacy advocate, seeing privacy as a human right.

Skills

  • Linux Servers And Environments.
  • Burpsuite, Postman, Curl, Strace, Nmap, Metasploit, Ffuf, Git, Sqlmap.
  • Http/https, Dns, Smtp, Ssh, Tcp/ip, Udp, Ftp, Smb.
  • Cwe Top 25 And Owasp Top 10 Vulnerabilities.
  • Scripting In Python, Bash, And C.
  • Latex.

Languages

Portuguese
Native
English
Advanced
Spanish
Advanced

Education

Feb 2025 - Dec 2026

FIAP

Cyber defense · São Paulo, Brazil

Certifications & licenses

Cybersecurity Bootcamp

Santander

Getting Started With AWS Pentesting

EC-Council

Full Stack Attacks On Modern Web Applications

EC- Council

Kali Linux For Ethical Hackers

FreeCodeCamp

CS50’s Introduction To Artificial Intelligence

HarvardX

Full Ethical Hacking Course

FreeCodeCamp

Intermediate Python Programming Course

FreeCodeCamp

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