Freelancer profile translated to English.
Back to original languageAbout Pierre
I support companies in the design, administration, and optimization of their IT environments, with a methodical and documented approach. My goal: to ensure the availability, performance, and security of systems while simplifying their daily operation.
My expertise
• System Administration: Linux, Windows Server, virtualization (VMware, Hyper-V).
• Networks & Security: configuration, monitoring, high availability, firewalling, VPN.
• Supervision & Monitoring: Zabbix, Nagios.
• Automation & Scripting: bash & PowerShell – reproducible and reliable procedures.
• Advanced Support & Troubleshooting: rapid diagnosis and resolution of complex incidents.
My added value
• Clear and documented approach: each intervention is accompanied by usable deliverables.
• Reliability & Performance: infrastructures designed to last and evolve.
• Proven methodology: checklists, procedures, and reproducible scenarios.
For whom?
• SMEs and mid-sized companies looking to make their systems and networks more reliable.
• Large companies with critical environments to secure and optimize.
• IT teams seeking expert support for their infrastructure projects.
French
Native or bilingual
English
Fluent
Spanish
Basic
Can work on-site
Paris (up to 50km)
Experience
- Mairie de Saint Ouen l'AumôneSystems & Networks ManagerPUBLIC SECTORJanuary 2023 - Today (3 years and 5 months)Saint-Ouen-l'Aumône, France- Project management- Migration of systems & networks infrastructure (VMWARE/Hyper-V)- Implementation of a functional DRP (Hyper-V)- Replacement of Wi-Fi access points (study)- Creation of a virtualized test environment for validation of developments (Proxmox)- Infrastructure automation with Ansible (Playbooks, roles)- Implementation of a monitoring tool (Zabbix)- Implementation of a password manager (Keepass)- Incident resolution using a ticketing tool (N1/N2)- Systems & Networks Administration: Servers, GPO, DNS, DHCP etc.- Proactive communicationStrengthening IT security:- Implementation of multi-factor authentication- Hardening of security policies- Advice on best practices
- Experis FranceSystems & Networks EngineerPHARMACEUTICALS INDUSTRYJanuary 2022 - January 2023 (1 year)Val-de-Reuil, FranceProject management:- Deployment of new equipment with specifications- Filling in various internal documents (intervention reports)
- Yelpp InformatiqueSystems & Networks AdministratorDIGITAL AND ITJanuary 2021 - January 2022 (1 year)Courbevoie, FranceProject Management:- Router deployment (Mikrotik)- AD server migration 2012 → 2022- Hypervisor deployment (Proxmox)- Incident resolution N1/N2- IT maintenance- Client relations
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Education
- RNCP Level 7 Title: Information Systems Manager (M2i) M2 Systems & Networks AdministrationESIEE-IT
- RNCP Level 6 Title: Systems, Networks & Databases AdministratorIPI Paris2021Titre RNCP Niveau 6 : Administrateur Systèmes, Réseaux & Bases de données
Certifications
- AZ-900 - Azure FundamentalsMicrosoft2025
- Zabbix Certified Specialist (In progress)UTAK