Freelancer profile translated to English.

Description

Systems and network administrator ready for new projects 🚀

Systems and network administratorwith six years of experience, I work to secure, stabilize, and optimize your **IT environments**, with a simple goal: to ensure service continuity and avoid critical interruptions.

Systems and network administrator: my intervention

System administrationand **network administration**:

● Stabilization of yourWindows Serverenvironments

● Structuring and securing yourActive Directory

●System administrationand optimization ofLinuxsystems

● Deployment and management of virtualised infrastructures (**VMware**)

What this means for you

With an experienced **systems and network administrator**:

● Your Windows Server environment becomes more reliable

● Your Active Directory is secure and structured

● Your Linux systems are better managed

● Your VMware infrastructure is performant and stable

Field experience

● Deployment of complete virtualised infrastructures (VMware, Windows Server)

● Implementation and security of Active Directory

● Task automation via scripts (time saving and reliability)

● Management of several hundred devices in a critical environment

● Migration and deployment of workstations and infrastructures

Technical environment

Windows Server, Active Directory, Linux, VMware, **Azure**, **Microsoft 365**, **PowerShell**, networks (**LAN/VLAN**), security and supervision.

Results-oriented method

My approach as a **systems and network administrator**:

1. Quick analysis of your needs

2. Implementation of a suitable solution

3. Optimization of your Windows Server environment

4. Securing your Active Directory

5. Continuous improvement (Linux / VMware)

Available immediately for long-term assignments in system administration and network administration.

Let's discuss your needs.

Industry field of expertise

Languages

French
Native or bilingual
English
Conversational

Workplace preferences

Can work on-site

Paris (up to 50km)

Fret +
Systems and network administrator
TECH
November 2024 - Today (1 year and 9 months)
Paris, France
Systems and network administrator mission:
Mise en place d'infrastructures IT complètes pour environnements virtualisés, dans une logique de standardisation et sécurisation des systèmes. Projet réalisé de bout en bout : design, déploiement, sécurisation et exploitation.

● Installation et configuration de VMware ESXi et vCenter sur environnement multi-serveurs
● Déploiement d’un domaine Active Directory (~10 utilisateurs) gestion des comptes et GPO
● Mise en place d’un file server avec DFS (gestion et sécurisation des partages) ● Conception d’une architecture réseau segmentée (VLAN, routage, firewall pfSense)
● Mise en place d’un bastion d’accès sécurisé (Apache Guacamole – RDP / SSH)
● Automatisation des opérations système via PowerShell (~20 scripts)
● Mise en place et suivi du MCO / supervision (monitoring, disponibilité)
● Documentation technique et transfert de connaissances

Résultats :
● Déploiement d’une infrastructure virtualisée complète et standardisée (100% from scratch)
● Amélioration de la sécurité des accès via bastion et segmentation réseau
● Réduction estimée de 30 à 50% des tâches manuelles grâce à l’automatisation
● Disponibilité système > 99% sur les services critiques (AD, fichiers)

Environnement technique (administration système et administration réseaux) :
VMware ESXi , vCenter , Windows Server 2016/2022 , Active Directory , PowerShell , Debian
System administration Network administration Active Directory VMware ESXi vCenter
Comité d'organisation des Jeux olympiques et paralympiques – Paris 2024
Systems and network administrator
TECH
September 2023 - October 2024 (1 year and 1 month)
Paris, France
Systems and network administrator mission:

Pilotage and coordination of the IT infrastructure of an Olympic site (North Paris Arena) in a critical environment with high demands for availability, security, and performance. Intervention during the preparation and operation phases, managing systems, networks, and IT support.

● Lead the site's IT planning (preparation, testing, deployment, operation) ● Coordinate IT teams (~12 engineers) and technical service providers
● Supervise the deployment of network infrastructures (LAN, VLAN)
● Lead the implementation and qualification of on-site Wi-Fi
● Monitor network configurations (routing, compliance, technical validation)
● Manage IT equipment (~200+ deliverables) via TEAP (orders, inventory)
● Deploy and configure workstations and network devices
● Ensure MCO and technical support via ServiceNow (incident and escalation management)

Results:
● Deployment of the IT infrastructure in compliance with 100% of milestones ● Zero critical incidents during the operational phase
● Monitoring and management of 200+ IT devices on site
● Implementation of structured incident and equipment tracking, improving traceability

Technical environment (system administration and network administration):
Windows 10 , Windows Server , Android, LAN/VLAN, Wi-Fi, routing, ServiceNow, Smartsheet, MS Project, Agile Methodology, Excel, ITIL
Systems and network administrator Network administration System administration Microsoft Office Windows Server
Experteam
Systems and network administrator
TECH
January 2023 - August 2023 (7 months)
Paris, France
Systems and network administrator mission:

Leading IT projects in a multi-client environment within an IT services company specializing in infrastructures and cloud. Managing projects with a focus on systems, networks, and workplace environments in critical settings.

Coordinating technical teams (infra, network, support) and overseeing service quality. Responsibility for meeting SLAs, costs, and service continuity.

● Lead up to 5 simultaneous IT projects (budgets up to €250k)
● Supervise systems, workstations, and network infrastructure environments
● Coordinate migrations to Azure and Microsoft 365 (several hundred users)
● Ensure RUN: incident management, requests, and operational condition maintenance
● Manage technical teams (infrastructure, network, support)
● Monitor and guarantee compliance with SLAs and service commitments
● Manage client relations and operational activity oversight
● Document operational procedures and contribute to continuous improvement

Results:
● Delivery of 5 major projects within deadlines and budgets
● Maintenance of an SLA rate > 99% for managed services
● Successful migrations to Azure and Microsoft 365 without major interruption
● Improvement of user environment availability and performance

Technical environment (system administration and network administration):
Windows 10 , Windows Server , Azure , Microsoft 365 , Intune , Ivanti , ServiceNow , Active Directory , PowerShell , ITIL, Agile
Systems and network administrator System administration Network administration Microsoft Azure Network administration