Cybersecurity · Systems · Networks
I'm a computer science engineering student specializing in cybersecurity, systems and networks. Most of what I learn eventually becomes a lab, a command-line tool or a Linux project.
Main direction
Defensive monitoring, infrastructure and practical security tooling.
01 · Selected security work
My strongest work sits where monitoring, networking and software meet. These projects show the lab work as well as the code behind it.
Defensive security · Academic team project
An open-source SIEM/XDR laboratory built to centralize and investigate security events across Linux, Windows and network infrastructure.
Over four weeks, the team built a heterogeneous security lab combining endpoint monitoring, network isolation and controlled attack scenarios to verify that detections worked in practice.
02 · Network security · Personal project
An educational TCP reconnaissance tool built with the Python standard library. It scans hosts and networks, identifies common services, collects banners and exports structured results.
“I built it to understand what happens behind a network scanner instead of treating existing tools as black boxes.”
03 · Static analysis · Personal project
A modular static malware scanning engine written in Go. It combines lightweight detection methods, from exact signatures to PE metadata and heuristic indicators.
The project explores how signals can be composed into a readable static-analysis pipeline. It is built for learning and experimentation, not as production antivirus software.
02 · Skills in context
No logo wall. Each area is connected to work where I applied it and had to make trade-offs.
Event collection, detection validation, correlation and investigation across endpoints and networks.
Evidence: OSIRISSentinel
TCP/IP, service discovery, segmentation, virtualization and heterogeneous lab design.
Evidence: OSIRISSentinel · NetSleuth
Small, inspectable tools in Python and Go, with structured output and automated tests where appropriate.
Evidence: NetSleuth · AntiVirusEngine
Daily Linux use and practical work around Hyprland, desktop integration and system-aware utilities.
Evidence: HyprWall · NightframeSDDM
03 · Linux and open source
Hyprland is also a practical place to learn about processes, media pipelines, display configuration and the edges between applications and the system.
Linux is where I experiment with systems, automate repetitive work and build tools for my daily environment. It connects my interest in development, cybersecurity and open-source software.
Working close to the system helps me better understand processes, networking, permissions and application behaviour.
Scripts and small tools help me remove repetitive steps and create reproducible workflows.
Linux gives me a practical environment for desktop tooling, cybersecurity labs and open-source projects.
Linux desktop · Personal project
A wallpaper manager for Hyprland with a command-line interface and GTK4 application. It supports images and videos across multi-monitor setups.
The core is shared by the CLI and GUI, while caching, power-aware profiles and FFmpeg encoding keep animated wallpapers practical on real hardware.
Linux desktop · Personal project
A modular SDDM login theme built with Qt6 and QML, with several visual presets, optional video backgrounds and a safe image fallback.
The theme separates authentication, background, session and power controls into reusable QML components and keeps multimedia support optional.
04 · Professional development
Hands-on experience applying cybersecurity concepts in a professional environment, working with vulnerability management processes, security tooling and real-world infrastructure.
Bosch
Upcoming
Joining Bosch in 2026 as a Vulnerability Management Intern.
I also contribute to student associations through teaching support, administrative involvement and community activities related to education, Linux and open source.
Horizon EFREI
Volunteer
I contribute to the Horizon association by volunteering as a tutor for EFREI students. My goal is to support them in their academic journey through personalized guidance and additional explanations across different subjects.
EFREI Linux
Association involvement
I contribute to the administrative management of EFREI Linux by helping prepare and follow up meetings, writing meeting notes, structuring internal communication and supporting the organization of events and activities related to Linux and open source.
05 · Earlier exploration
Machine learning · Academic team project
A reproducible TensorFlow pipeline for classifying plant diseases from leaf images, covering training, inference, experiment tracking and containerized execution.
06 · A little more about me
I'm Alexandre, an engineering student at Efrei Paris. I enjoy the point where a network diagram becomes a real lab, or where a security concept becomes a small tool I can test and understand.
Linux is the thread running through most of my work. I use it for security labs and development, but I also like shaping the desktop itself through Hyprland and open-source projects.
I work in French and English, and my exchange semester in Montréal made the latter much less theoretical.
Tools · Technologies I work with
Technologies used across personal, academic and open-source projects.
07 · Frequently asked questions
Short answers about my work, interests and how to reach me.
Defensive monitoring, infrastructure and practical security tooling. I like turning concepts into labs or small tools that I can inspect and test.