whoami#
My name is Arnaud Couturier. I am 26 years old and have been working in IT and Cybersecurity for about 5 years. My main interests are Pentesting, Red Teaming, DevSecOps, and Automation. I use this site to share writeups, thoughts, and projects when I have the time.
Job Experience#
- Cybersecurity Consultant @ CGI - Present
System and Network Administrator @ /dev/nullHelpdeskGrocery Store worker
In my current role as a Cybersecurity Consultant @ CGI, the projects I work on consists mainly of:
In my current role as a Cybersecurity Consultant at CGI, I work on projects that primarily consist of:
Penetration Testing and Active Directory security auditing.
Contribute to develop a Pentesting service offering.
Developing custom tooling for vulnerability management reporting (Python).
Automating tasks for SecOps teams (Python, PowerShell, Ansible) for various solutions such as Cisco Umbrella, Microsoft Defender for O365, Palo Alto Firewalls, and Cisco IronPort.
Implementing Infrastructure as Code (IaC) and Configuration as Code (CaC) using Terraform and Ansible for complex infrastructure deployments (e.g., new target Active Directory architecture, phishing campaign environments with Evilginx).
Deploying security tools in DevOps pipelines, including Dependency-Check, Semgrep, and SonarQube.
Projects#
View my publicly available projects on my Github profile.
Certifications#
CTFs#
I recently started to participate more in CTFs. So far i’ve been to:
- HackTheBox Global Cyber Skills Benchmark CTF 2025: Operation Blackout
- HackTheBox Cyber Apocalypse 2025
- Hackfest CTF 2024
- HackTheBox Cyber Apocalypse 2023
- HackTheBox Cyber Apocalypse 2024
- HackTheBoo 2024
- UnitedCTF
Education#
- Bachelors of Science in Cybersecurity (Polytechnique Montréal)