System and Network Administrator

Paris, France

Job Reference 1239854

Location Paris, France

Industry IT - Cloud & Infrastructure

Function IT & Telecoms

Job Type Contract

Date Added March 12, 2024

About the job

Job Title: System and Network Administrator

Seniority: Level 3

Location: Paris 15

Duration: Minimum 6 months (Freelance)

Start Date: ASAP


As a System and Network Administrator, you will play a crucial role in managing and securing our IT infrastructure. Your responsibilities will include -


Security and Prevention:

  • Email administration
  • Security of Windows systems (Servers and workstations)
  • Security and prevention of network equipment (Switch and wifi)
  • Management and administration of IS security software (AV, Firewall, webfilter, etc.)

Technology Monitoring and Updating:

  • Active participation in technology monitoring
  • Keeping systems and network equipment up-to-date

User Support:

  • Level 3 support on workstations
  • Active Directory Administration
  • Systems monitoring and incident resolution support

Network Management:

  • SD WAN management
  • Technical incident management for network issues
  • Installation of network infrastructures

Security Expertise:

  • Network Security: Fortinet Firewall, security policy management, WAF, IDS, IPS
  • Implementation of Single Sign-On (SSO) and associated authentication protocols with Azure AD
  • Workstation security: EDR Cortex, BitLocker, Windows Hello
  • Cloud security: Cisco Umbrella, Ironscales
  • Identity Management: ADDS, ADCS, Azure AD, MFA

Technical Environments:

  • Operating systems: Windows 2016 to 2022, Linux Debian
  • Collaborative tools: Microsoft 365 (Teams, SharePoint Online)
  • LAN-WAN Network Monitoring
  • MDM: Microsoft Intune


  • Administration of active network equipment
  • Aruba Switch and AP, Aruba Central, Clearpass


We are seeking a qualified System and Network Administrator with the following:

  • 3 to 5 years of experience in managing complex IT infrastructures
  • Excellent knowledge of the latest technological trends
  • Mastery of concepts and implementation of SSO and associated authentication protocols with Azure AD
  • Installation of network infrastructures
  • Strong expertise in network security: Fortinet Firewall, WAF, IDS, IPS
  • Autonomous with a strong spirit of analysis and synthesis
  • Technical proficiency in English
  • Familiarity with collaborative tools such as Microsoft 365 (Teams, SharePoint Online)
  • Experience with LAN-WAN Network Monitoring
  • Knowledge of Workstation: Windows 10 and Windows 11, Office 365, iOS
  • Familiarity with MDM: Microsoft Intune

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