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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.