Systems Administrator (Windows & Unix)

Within the Infrastructure and CloudOps team, the System Administrator (Windows and Unix) is responsible for operating, maintaining, and evolving on-premise and cloud server environments, while ensuring their stability, performance, and security.

Main Mission

The System Administrator (Windows and Unix) ensures the availability, performance, and reliability of Windows and Unix/Linux systems by applying best practices in administration, automation, and standardization.

Responsibilities

• Administer Windows Server and Linux/Unix operating systems
• Manage infrastructure services (AD, DNS, DHCP, NTP, file services)
• Perform updates, patches, and version upgrades
• Diagnose and resolve Level 2 and Level 3 incidents
• Participate in evolution and modernization projects
• Document architectures, configurations, and procedures
• Collaborate with Network, Security, and Cloud teams
• Contribute to the automation of recurring tasks

Technical Environment

• Windows Server
• Linux (RedHat, Ubuntu, Oracle, etc.) / Solaris experience a big asset
• Active Directory / Entra ID
• Virtualization (VMware, Hyper-V)
• Cloud (Azure, AWS)
• Scripting (PowerShell, Bash)
• Monitoring and backup tools