Professional Summary

Cartographic Engineer with expertise in cybersecurity, specializing in active directory penetration testing, and security automations. Proven track record in Red Team assessments, Active Directory security, and application security. Background in programming and automation with experience in improving security postures across enterprise environments.

Work Experience

Information Security Analyst

Flowa Technologies Feb 2025 - Present
  • Developed automation scripts for security operations, reducing manual tasks and improving incident response efficiency
  • Enhanced Active Directory security by identifying and mitigating dangerous permissions, significantly reducing attack surface
  • Implemented security best practices in developer onboarding and resolved critical Wi-Fi security vulnerabilities

Information Security Intern

ATG - Americas Trading Group Dec 2023 - Jan 2025
  • Conducted Red Team assessments and penetration testing of mobile applications, delivering comprehensive security reports
  • Performed comprehensive Active Directory infrastructure mapping and identified critical security vulnerabilities
  • Evaluated and tested third-party security solutions for enterprise implementation

Development Intern

ATG - Americas Trading Group Jun 2023 - Dec 2023
  • Designed and implemented secure application secrets management solution, improving security posture

Education & Training

Bachelor's in Cartographic Engineering

Military Institute of Engineering Jan 2020 - Dec 2024

Rio de Janeiro, Brazil

Penetration Tester Job Role Path

Hack The Box Academy Aug 2023 - Jul 2024

Comprehensive hands-on training covering all stages of penetration testing. Successfully passed CPTS certification exam.

Professional Pentester Course

DESEC Security Aug 2023 - Feb 2024

Advanced penetration testing course with theoretical foundations and practical laboratories.

Achievements

CPTS - Certified Penetration Tester Specialist (Hack The Box)
DCPT - Desec Security Certified Penetration Tester
CRTA - Certified Red Team Analyst (CyberWarfare Labs)
AD RTS - Certified AD Red Team Specialist (CyberWarfare Labs)

Technical Skills

Penetration Testing & Red Team

Web Application Testing Mobile App Security Active Directory Security Network Penetration Testing OSINT & Reconnaissance

Programming & Automation

Python PowerShell Bash C/C++ C# HTML/CSS/JavaScript

Languages

English (Advanced) Portuguese (Native) German (Basic)

Notable Projects

Cybersecurity Blog & CTF Writeups

Personal Project

Created and maintain a technical blog at mhijuxs.github.io featuring detailed CTF writeups, security cheatsheets, and educational content. Focus on explaining methodologies and alternative approaches to help others learn cybersecurity concepts effectively.

Military Troop Tracking System

Academic Project

Led development of a geolocation-based system for tracking friendly troops using GPS and Arduino technology. Project won 1st place in Introduction to Engineering Projects course. Delivered pitch to Urca Angels investor group. Technologies: C++, Arduino, GPS, HTML/CSS, LaTeX.