Senior System Administrator

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About the Role Join a two-person IT operations team at a SaaS company, maintaining the systems and infrastructure that support day-to-day business operations. You will help ensure reliable, secure services across a heterogeneous environment.
What You'll Do Administer and maintain servers, networks, and storage across Windows and Linux environments.

Maintain core infrastructure, including Proxmox, Kubernetes, CEPH, and networking systems.

Install, configure, and support hardware and software.

Monitor system performance, availability, and security, and troubleshoot incidents.

Plan and deliver IT projects.

Support implementation of ISO 27001 and C5 compliance requirements.

What We're Looking For Completed vocational training or a degree in computer science, or a comparable qualification.

At least 3 years of experience in system administration or a related role managing servers, networks, and storage.

Production experience with virtualization, particularly Proxmox.

Experience administering Windows and Linux systems, with solid knowledge of server administration, networking, and IT security.

Experience with Microsoft 365 and cloud services such as Azure in hybrid environments.

German proficiency at C1 level and English proficiency at B2 level.

Experience with Kubernetes, CEPH, procurement, supplier management, or ISO 27001/C5 compliance is beneficial.

Compensation & Benefits Visa sponsorship is not available. Benefits include flexible working hours, home office options, professional development support, and health and mobility benefits.
Location On-site in Freiburg im Breisgau, Germany.
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