Hello, I am

Léonard Sero

Student in Networks & Telecommunications


Curious, rigorous, and always seeking new technical challenges, I move forward with the goal of becoming a solid professional in networks and telecoms. Here you can discover my background, projects, and ambitions.

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About

About Me

Profile

Passionate about technology, I found in the Networks & Telecom field a real opportunity for learning.

Specialization

In my second year, I am specializing in cybersecurity while maintaining a strong interest in networking and development.

Strengths
  • Passion for networking
  • Regular programming
  • Home lab on Proxmox
  • Autonomous and rigorous
Exploration

I use my free time to explore tools, set up environments, and develop practical skills.

My Education

Overview

The BUT Networks & Telecom in Colmar offers a rich and varied program focused on practical learning: lectures are limited, giving way to hands-on labs and projects.

Content

Networking, systems, cybersecurity, telecoms, IoT, development. Lots of labs and projects.

Specialization

Cybersecurity option in the 2nd year: focus on network security, vulnerability analysis, with an approach centered on monitoring and designing secure networks.

Goal

Prepare myself to enter the professional world or continue towards a Master's degree (BAC+5).

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My Skills

Administer

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Connect

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Program

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Secure

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Monitor

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My Projects

Transmission Systems

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Communicating Applications

A distributed system that runs programs on multiple servers, optimizing resource management and task distribution.

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Multi-site Secure Networks

This project involves designing a secure and interconnected network infrastructure for two companies, integrating advanced management, service, and communication technologies.

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Discovering Pentesting

A project that allowed me to explore pentesting by exploiting vulnerabilities on Root Me, strengthening my understanding of security challenges.

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Essity Internship

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Securing an Information System

This project consists of securing a company's information system by integrating LDAP, NFS, secure messaging, and a VPN, with strict access and communication management.

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See my first year projects
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My Journey

High School Diploma

06/2023

Lycée Camille Sée, Colmar
  • Options: geopolitics, political science, and economics & social sciences
  • Graduated with honors, scored 16/20 on the final oral exam

Summer Job at Biogroup

08/2024

Lenys Laboratory, Colmar
  • Transport and classification of blood samples for analysis.

Internship at Essity France

03/2025

Kunheim Paper Mill
  • Developed a web application to launch PowerShell scripts.
  • Security: Created user groups for the app and an admin panel.
  • Version history: Set up a Git repository with Azure DevOps.
  • Communication: Daily meetings in English and documentation writing.
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Contact Me