Linux System Administrator (M/F)

Your Role Description of the mission and activities: Your missions will consist of: Participating in the creation of a custom Linux OS with Buildroot. Contributing to the operational maintenance (MCO/MACS) of this system. Ensuring the quality of project deliverables. Maintaining and evolving development tools and processes (CI/CD, Ansible, Gitea, Jenkins, etc.). Ensuring the maintenance and administration of development platforms (Proxmox, Debian, AlmaLinux, Docker, Podman, Swarm/Gluster, etc.). Providing support to users and the security officer. Your Profile Profile sought: With a Master's degree (Bac+5), you have experience (5 years or more) in Linux expertise. Expected skills: Shell scripting, Git, Build tools (gcc, Makefiles, Cmake, etc.), GNU/Linux, particularly Debian & RHEL, Docker/Podman. Optional skills: Ansible, Proxmox, Backup management, verification and restoration, ZFS / LVM, Deb and RPM package repositories, Linux hardening, Docker registry, Docker swarm/compose, Proxmox VE. The position will require access to national defense secret information, and the incumbent will be subject to a security clearance procedure in accordance with the provisions of articles R.2311-1 and following of the Defense Code and IGI no. 1300 of August 9, 2021. Entity Orange Business's ambition is to become the leading network and digital integrator in Europe. To achieve this, we rely on our key expertise in c