> Markdown version of [/jobs/ext/4109051-manager-network-systems-administration](https://www.wearedevelopers.com/jobs/ext/4109051-manager-network-systems-administration). Every page supports `.md` or `Accept: text/markdown`. Links point to the HTML versions so they work for humans too. Agent guide: [/agents.md](https://www.wearedevelopers.com/agents.md).

---

# Manager Network & Systems Administration

- **Company:** Isar Aerospace
- **Location:** München, Germany
- **Experience:** Expert
- **Contract:** Permanent contract
- **Skills:** Proxmox, Amazon Web Services, Microsoft Azure, Backup Devices, Bash Shell, Border Gateway Protocol, Cloud Computing, Cloud Engineering, Configuration Management, Complex Networks, Dynamic Host Configuration Protocol, Debian Linux, Linux, Disaster Recovery, Domain Name System (DNS), VMware ESX Servers, HAProxy, Internet Protocol Security (IP SEC), Virtual Private Networks (VPN), Internet Small Computer System Interface (ISCSI), Python (Programming Language), Kernel-Based Virtual Machine, Network Architecture, Routing, Nginx, Open Shortest Path First (OSPF), Red Hat Enterprise Linux, Ansible, Zero Trust Network Access, TCP/IP, Virtual Local Area Networks, Virtualization Technology, VMware VSphere, Load Balancing, System Availability, Multi-Cloud, HybridCloud, Firewalls (Computer Science), Infrastructure Automation Frameworks, Information Technology, Data Management, Lxc, Veeam, Terraform, Cisco, Vmware
- **Published:** October 9, 2026
- **Apply:** https://www.indeed.com/viewjob?jk=608c9b4d4eee9578

## About the Role

* Operating Systems: Advanced, expert-level proficiency in Debian and/or Red Hat Enterprise Linux (RHEL).
 * Virtualization: Deep hands-on expertise with VMware (ESXi/vCenter) and Proxmox VE (KVM/LXC).
 * Cloud Platforms: Proven experience managing production environments in Azure and AWS (familiarity with IONOS Cloud is a major plus).
 * Networking & Firewalls: Strong understanding of TCP/IP, BGP/OSPF routing, DNS, Load Balancing (HAProxy/Nginx), enterprise Firewalls, and IPsec VPNs.
 * Automation & Scripting (Conceptual): Solid conceptual understanding of Ansible, Terraform, Bash, or Python-ability to read, understand, run, and troubleshoot existing playbooks and scripts.
 * Storage & Backups: Experience managing enterprise storage protocols (iSCSI, NFS, SAN) and backup tools (e.g., Veeam or built-in virtualization snapshot engines).

 * 5+ years of hands-on experience in Systems Administration, Network Engineering, or Cloud Architecture, with demonstrated experience acting in a lead or senior capacity.
 * Proven track record of architecting, deploying, and maintaining hybrid cloud and multi-site network environments.
 * Strong communication skills with the ability to bridge technical requirements and business objectives.

Bonus Skills

 * Linux: Red Hat Certified Engineer (RHCE) or Linux Foundation Certified Engineer (LFCE)
 * Cloud: Microsoft Azure Administrator (AZ-104), AWS Certified SysOps Administrator, or Solutions Architect
 * Networking/Virtualization: VMware Certified Professional (VCP) or Cisco Certified Network Associate/Professional (CCNA/CCNP)

## Description

* Hands-on Infrastructure Leadership: Serve as the primary technical subject matter expert (SME) and escalation point for all systems, virtualization, and network architecture.
 * Vendor & Asset Management: Oversee infrastructure vendor relationships, license agreements, hardware lifecycles, and service level agreements (SLAs).
 * Incident & Capacity Planning: Lead major incident responses, perform root-cause analysis (RCA), and proactively monitor capacity across storage, compute, and network links., * Hybrid & Multi-Cloud Administration: Design, secure, and maintain scalable infrastructure across Azure, AWS, and IONOS Cloud.
 * On-Premise Virtualization: Oversee, optimize, and maintain our enterprise hypervisor clusters using VMware vSphere (ESXi/vCenter) and Proxmox VE (KVM/LXC).
 * Disaster Recovery & Data Protection: Plan, implement, and test automated backup, recovery, and high-availability strategies across all platforms.
 * Infrastructure Automation Concepts: Understand and support Infrastructure as Code (IaC) workflows (Terraform/Ansible) to streamline server provisioning, configuration management, and patching.

Enterprise Networking & Security

 * Network & Connectivity Management: Design, configure, and troubleshoot complex network architecture involving Cloud VPCs, Site-to-Site IPsec VPNs, VLAN segmentation, DNS, DHCP, and firewalls.
 * Traffic Management: Manage load balancing, ingress routing, and perimeter security to ensure high availability and zero-trust access principles.