Noa DELOIRS - Apprentice Systems and Network Administrator

Groupement Les Mousquetaires · Master's in Cybersecurity & Cloud - IPSSI · Bourges, Centre-Val de Loire, France

About

Apprentice systems and network administrator at Groupement Les Mousquetaires (one of France's largest retail groups), I am studying for a Master's in Cybersecurity & Cloud at IPSSI (French level 7 qualification, Secure Information Systems Expert).

With a Bachelor's in Cybersecurity, Cloud, Systems and Networks, I secured a company's email (SPF, DKIM, DMARC, MFA), wrote its security policy and migrated a business application with no data loss.

On the side, I build my own environments: a virtualised lab (OPNsense, AD, hardened Debian, Zabbix) and an Ubuntu Server HomeLab used every day.

Work experience

Systems and Network Administrator (apprenticeship) - Groupement Les Mousquetaires

· Bourges · current

Bourges logistics hub (ITM Logistique Alimentaire International), alongside the Master's.

  • Keeping the site's IT infrastructure up and running
  • User support, management of workstations, accounts and access rights

Systems and Network Administrator (apprenticeship) - Suite De Soins

· Bourges

Sole IT contact for a home healthcare agency with no IT department.

  • Email: OVH domain and Google Workspace, audit then fix of SPF, DKIM, DMARC, MFA enforced
  • Wrote a simplified security policy and a password procedure (ANSSI and CNIL guidelines), staff awareness
  • Migrated a business application to a new one with no data loss
  • Networked a multifunction printer, daily support, how-to guides, scheduled maintenance

Web and mobile developer (internship) - Boréal Business

· Bourges

Agile development of web and mobile apps.

  • Designed mock-ups in Figma
  • Built secure features in PHP and TypeScript
  • Front-end and back-end security reviews with the IT team

Education

Master's in Cybersecurity & Cloud - IPSSI

· in progress

French level 7 qualification (RNCP) "Secure Information Systems Expert", work-study.

Bachelor's in Cybersecurity, Cloud, Systems and Networks - Campus La Salle Bourges (ex-ESTIAM)

· graduated

French level 6 qualification (RNCP) "Secure Infrastructure Administrator".

Projects

Secure infrastructure lab

Aug - Oct 2026 · qualification project

5 virtual machines on VMware Workstation, split into two network zones.

  • OPNsense firewall, internal network and DMZ, DMZ-to-LAN blocking verified by tests
  • Windows Server 2025: Active Directory, DNS, DHCP, GPOs applied to a Windows 11 client
  • Hardened Debian 13 (no root SSH, logged firewall) and Zabbix monitoring
  • Incident simulation and handling, evidence file and lessons learned

Technologies : OPNsense, Active Directory, Zabbix, Debian, VMware

Ubuntu Server HomeLab

since June 2025

Personal server used daily by 5 to 10 people.

  • NAT port forwarding, opened ports and UFW firewall
  • User management, network monitoring
  • Preventive and corrective maintenance

Technologies : Ubuntu, Linux, UFW, SSH

Securing a company email system

2026 · Suite De Soins

OVH domain + Google Workspace, from audit to compliance.

  • DNS audit then SPF, DKIM and DMARC fixes
  • Two-factor authentication enforced on every account
  • Simplified security policy and staff awareness

Technologies : OVH, Google Workspace, DNS, MFA

This portfolio

2026

A desktop and a terminal in the browser, with mini-games.

  • React + TypeScript, no terminal library
  • Hosted on Cloudflare Pages, OVH domain, A+ security headers

Technologies : React, TypeScript, Git

Project reports

  • Report: secure infrastructure lab - Level 6 qualification project: a small virtualised company network, split into zones, hardened, monitored, then tested with simulated incidents.
  • Report: securing a company email system - Apprenticeship at Suite De Soins: audit and fix of a Google Workspace email system on an OVH domain, two-factor authentication and written security rules.

Blog and tech watch

Skills

Systems

Linux, Debian, Ubuntu Server, Windows Server, Active Directory, PowerShell, Bash, VMware, VirtualBox, Hyper-V, Docker, Kubernetes, Azure, Windows Backup

Network & security

OPNsense, Cisco, Zabbix, SSH, VPN, UFW / firewall, SPF / DKIM / DMARC, OVH, WinSCP, DNS / DHCP, MFA, Security policy

Development

Python, TypeScript, JavaScript, React / Native, Expo, PHP, HTML, CSS, C, C++, C#, Lua, Unity, Arduino, Git, GitHub, MySQL, SQL Server, VS Code, PyCharm, Figma

Office & organisation

Microsoft 365, Outlook, Teams, Excel, Google Workspace, Obsidian, Trello

Know-how

On-site and remote support, Preventive and corrective maintenance, Incident management, GDPR, tech and legal watch, Teamwork

Certifications

  • CCNA : Introduction to Networks - Cisco Networking Academy
  • CCNA : Switching, Routing and Wireless Essentials - Cisco Networking Academy
  • IT Essentials - Cisco Networking Academy

Interests

Gym and fitness, Piano, Reading, Cinema

Contact

CV as plain text · Version française · [email protected]