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Jean-Luc DagnonJD

Jean-Luc Dagnon

Freelance Systems Engineer

€555/day
Lyon, FR
8-15 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Jean-Luc

🎯 Systems Administrator & IT Project Manager | Cloud – Security – Support

Freelance IT professional with over 10 years of experience, I manage both the operational aspects of information systems and the coordination of technical projects. My hybrid profile allows me to oversee complex environments while ensuring their daily performance and security.

✅ Key Skills:
Complete administration of Windows servers (2003 to 2022), Active Directory, GPO
Deployment and management of Office 365, Azure, Intune, BitLocker, WSUS
System image creation (MDT, SCCM), automation & industrialization
Infrastructure project management: scoping, planning, implementation, reporting
Coordination of technical teams and subcontractor supervision
L2/L3 IT Support, documentation, operational maintenance, endpoint and network security

🚀 My Approach:
Structured and results-oriented: I handle your IT needs as a true project
Agile and autonomous: I adapt to your tools, constraints, and priorities
Transparent and efficient: you are informed of each step with complete clarity

💬 Need an expert capable of managing your systems and projects with the same rigor? Let's discuss!
  • French

    Native or bilingual

  • English

    Native or bilingual

Can work on-site
Lyon (up to 50km)

Experience

  • BIOMERIEUX
    Freelance Technical Coordinator
    MEDICAL
    February 2023 - Today (3 years and 4 months)
    Lyon, France
    Environment: Windows Server, Linux, Dynatrace, Fortinet, Cloud (Azure, AWS), Office 365, Intune, VMware, etc.

    Tasks:
    • Consultation and coordination of IT operations to ensure system stability and efficiency.
    • Management and monitoring of technical projects related to IT infrastructure and application services.
    • Improvement of IT processes and implementation of best practices to optimize system management.
    • Support for internal teams in incident resolution and operational maintenance.
    • Participation in infrastructure deployments, migrations, and updates.
  • EQUANS
    Freelance Systems Engineer
    ENERGY AND UTILITIES
    May 2022 - December 2022 (7 months)
    Lyon, France
    Environment: Windows Server (2012R2 to 2022) Active Directory, WSUS, IIS, Industrial Applications, Office 365, Hyper-V, Windows 10

    Tasks:
    ⮚ Study of the implementation of an Active Directory in an offline client network on a nuclear site
    ⮚ Study of the implementation of a WSUS server for updating workstations on this network
    ⮚ Study of the implementation of cybersecurity rules according to national standards provided by the client
    ⮚ Writing a study document on the entire solution studied, including an analysis of associated impacts.
    ⮚ Project planning assistance
    ⮚ Implementation of the technical solution in a test environment (under Hyper-V) and then on the client site
    ⮚ Preparation of a test plan for monitoring the intervention
  • Korian
    Freelance Systems Administrator
    HEALTH AND WELLNESS
    September 2021 - April 2022 (7 months)
    Lyon, France
    Environment: Windows Server (2016 to 2019) SCCM, MDT, DM, AD, Microsoft Azure, Citrix, SharePoint, Link, Virtualization (VMWARE/ESX, Hyper-V, App-V Notes,
    Microsoft and Linux workstations, Scripting (PowerShell, VB,)
    LAN/WAN/MAN, Wi-Fi, Firewall, Routing, VLAN, Cisco, Juniper, Cisco Prime, LMS, OSPF, HSRP, QoS, Network Security

    Tasks:
    ⮚ Daily participation in monitoring and resolving L3 incidents on Windows and Linux Datacenter infrastructures
    ⮚ Creation of task sequences via SCCM for the deployment of Windows Server 2019 in conjunction with a Korian establishment server update project
    ⮚ Intervention on business application solutions, including interfacing with publisher support as needed
    ⮚ Deployment of PowerShell and batch scripts for server configuration updates
    ⮚ Scoping and handling of infrastructure projects
    ⮚ Ensuring operational maintenance

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Education

  • Master of Science
    2013
    Master of Science Expert Informatique
  • Computer Science Bachelor
    ECTEI Paris
    2011
    Bachelor Informatique

Skill set

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