Harry Hope, cabinet de recrutement accompagne candidats et entreprises dans leurs recherches des meilleures opportunités au Luxembourg et à l'international. Afin de mieux répondre à vos enjeux, tous nos consultants sont spécialisés par secteur d'activité et zone géographique. POSTE I'm recruiting on behalf of a leading player in the Space Ground Segment / Earth Observation IT services sector. Our client designs, operates, and scales mission-critical platforms used by European and national space agencies as well as private organisations. To strengthen the IT Infrastructure department, we're looking for a Senior Linux System Administrator to help run and evolve core infrastructure, HPC systems, and cloud platforms that power high-throughput EO data workflows. What you'll do: - Install, administer, and maintain physical/virtual servers, workstations, and supporting IT equipment. - Operate and harden services in Linux (primary) and Windows environments. - Manage users, directories, and access across mixed estates. - Support and optimise HPC clusters and cloud workloads used for large-scale EO data processing. - Ensure reliability, backup/recovery, monitoring, and security across on-prem and cloud components. PROFIL Must-have qualifications: - Degree in Computer Science (or related discipline) or equivalent experience. - 5+ years in a similar SysAdmin role. - Deep expertise in Linux administration (system services, packaging, troubleshooting, performance). - Virtualisation and infrastructure management (VMware). - Active Directory administration. - Networking fundamentals and operations (preferably Cisco and Dell). - Backup administration (e.g., Veeam). - Monitoring with tools such as Nagios, Observium, SolarWinds. - Firewall administration (Check Point preferred). - Infrastructure automation (Ansible). - Hands-on with cloud infrastructure (design, deployment, ops). - Solid grasp of security principles (hardening, least privilege, patching). - Experience administering a Kubernetes cluster. - English fluency (spoken and written). - Proven team player. - Valid EU work permit. - French is a plus.
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