Our client (Space sector) is looking for a Senior Linux System Engineer to join their infrastructure team. This role is ideal for someone with strong Linux system administration experience, who is comfortable working across various distributions and enjoys both operational and project-based responsibilities. Contract Type: Permanent - InHouse - Luxembourg Your responsibilities Administer and maintain Linux-based systems (primarily RHEL and Rocky Linux, with some Ubuntu). Perform regular VMware operations (e.g., VM creation and management). Manage virtual machines hosted on cloud providers (no direct Azure/AWS/GCP operations). Participate in both run (daily operations) and build (projects and improvements) activities. Ensure system reliability, performance, and security across the infrastructure. Coach and support junior system administrators. Occasionally participate in off-hours maintenance or installations (compensated for via time off or additional pay). Your first 6 months: Gain a deep understanding of the existing infrastructure. Become fully operational and autonomous in managing systems and supporting the team. Required skills for this role You have at least 10 years of experience as a Linux System Engineer. You are comfortable switching between these distributions: RHEL, Rocky Linux, Ubuntu. You are used to working within big infrastructure environments. You have solid experience with VMware. You are familiar with systems running on cloud-hosted VMS. You have strong troubleshooting and performance tuning skills. You have experience mentoring or coaching junior colleagues. Career development: While the current opening does not lead directly to a manager role, there is a clear path toward becoming a System Administrator Coordinator, depending on performance and company growth. Your rewards and benefits for this role Competitive salary based on 12 months Hybrid work policy (34 days/year) Parking spot Meal vouchers Possibility of company-sponsored certifications (e.g., VMware, Kubernetes, Security), based on relevance and impact Hays plc est l'un des principaux groupes mondiaux de recrutement de professionnels. Hays est l'expert du recrutement de personnes qualifiées, professionnelles et compétentes dans le monde entier. Hays est le leader du marché au Royaume-Uni et en Asie-Pacifique et également l'un des leaders du marché en Europe continentale et en Amérique latine. Hays intervient pour le compte de milliers d'entreprises des secteurs privé et public, sur des postes en CDI, CDD, Travail Temporaire et Contracting. Hays France & Luxembourg compte aujourd'hui plus de 650 salariés répartis au sein de 22 bureaux (Aix-en-Provence, Amiens, Biarritz, Bordeaux, Clermont-Ferrand, Dijon, Grenoble, La Rochelle, Lille, Lyon, Montpellier, Nancy, Nantes, Nice, Paris, Reims, Rennes, Rouen, Strasbourg, Toulouse, Tours et au Luxembourg) couvrant 25 secteurs d'activité.