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Valentin DellenbachVD

Valentin Dellenbach

Systems and Network Administrator

€200/day
Bar-le-Duc, FR
0-2 years

Average response time: 1 hour

Freelancer profile translated to English.
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About Valentin

Currently a Systems and Network Administrator at JIGE INTERNATIONAL as part of my Bachelor's degree (Bac+3), I apply my skills in IT, networks, and cybersecurity to SMEs and independent professionals.

With a solid technical background (BTS Cybersecurity, IT, and Networks - CIEL), I handle the daily management of IT infrastructures, deployment of systems, and data security. My goal as a freelancer is to provide you with reliable and fast solutions to keep your systems operational and secure.

My areas of expertise:

Systems Administration & Maintenance: Installation, configuration, and security of servers on Windows environments (Server 2022/2025, Active Directory and Linux).
Virtualization & Containers: Proficiency in Hyper-V, Proxmox, and Docker tools.
Networks & Security: Installation and maintenance of network equipment (switches, routers), implementation of VPN solutions and data encryption.
Infrastructure & Support Management: Hardware/software inventory management, ticketing system management, writing clear technical documentation, and user support/training.

Key projects and experiences:

Infrastructure Overhaul:
Implementation of IT infrastructure overhaul projects for new sites.
System Migration: Operational management of workstation migrations (Windows 10 to Windows 11).

Availability & Flexibility (Evenings & Weekends):
As I am currently in a work-study program during the week, I carry out all my missions remotely exclusively in the evenings and on weekends.
This setup is ideal for your IT maintenance or system update needs: I work outside your business hours to avoid any interruption or downtime for your teams during the day.
Serious, rigorous, and attentive, do not hesitate to contact me to discuss your technical needs!
  • French

    Native or bilingual

  • English

    Fluent

Remote only
Primarily works remotely

Experience

  • JIGE INTERNATIONAL
    Systems and Network Administrator (Work-Study)
    AUTOMOBILE
    July 2025 - Today (1 year)
    Bar-le-Duc, France
    • Documentation Creation
    • Hardware, Software, and Mobile Phone Fleet Management
    • Participation in PRI/PCI Implementation
    • Implementation of an infrastructure overhaul project for a new site
    • Ticketing Management
    • Support in ERP Transition
    • User Training
    • Cybersecurity Prevention
    IT support ITSM Risk Management it-project-management Active Directory
  • Préfecture de Meuse
    Information System Technician
    PUBLIC SECTOR
    May 2024 - July 2024 (2 months)
    Bar-le-Duc, France
    • Active participation in the migration of laptops from Windows 10 to Windows 11
    • Implementation of cybersecurity policies and procedures
    • User support
    • Management of network equipment maintenance and installation
    • Implementation of secure data destruction solutions (Secret / Top Secret)
    • Participation in WEEE cycle
    it-service-management Cybersecurity Windows Microsoft Deployment Toolkit User Support
  • Centre Hospitalier Bar le duc
    IT Security Discovery Internship
    MEDICAL
    October 2019 - November 2019 (1 month)
    Bar-le-Duc, France
    • Assistance with user troubleshooting
    • Ticket processing
    • Network switch setup
    User Support Computer Hardware Installation Needs Assessment

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Education

  • Bachelor in Systems and Network Administration (Work-Study)
    CESI
  • BTS in Cybersecurity, IT, and Networks (CIEL)
    Lycée Raymond Poincaré
    2025

Skill set

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