IT System Administrator – Infrastructure

JUNG

IT-Systemadministrator ensuring the operation and development of network and IT infrastructure at JUNG. Responsible for collaboration across locations and managing system landscapes both nationally and internationally.

Posted 7/31/2026full-timeSchalksmühle • 🇩🇪 GermanyJuniorWebsite

Core Competencies

Role fit

Core Competencies

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Demonstrates expertise in network infrastructure administration, including LAN, WAN, WLAN, and VPN, alongside strong capabilities in server management and IT security. Proficient in implementing cloud solutions and optimizing performance in complex IT environments.

Highest-signal resume keywords

Network AdministrationVirtualization (VMware, Proxmox)IT Security and Backup SystemsMicrosoft Server and Linux DistributionsCloud Solutions (Microsoft Azure, SAP BTP)

ATS Keywords

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Applicant Tracking System Keywords

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Hard Skills

Network Administration (LAN/WAN/VPN)RoutingFirewallsVLANsSSL/TLS ManagementVirtualizationSQLCloud IntegrationsS/4HANA IntegrationsBackup Systems

Soft Skills

Structured Working StyleIndependent Working StyleTeam-OrientedGood Communication Skills

Tools & Technologies

VMware vSphereProxmox VEMicrosoft AzureSAP BTP

Certifications & Qualifications

Degree in Computer ScienceIT Specialist Training

Industry Keywords

IT InfrastructureIndustrial EnvironmentsProduction EnvironmentsCentralized Certificate ManagementPerformance Optimization

Tech Stack

Tools & technologies

AzureCloudFirewallsLinuxSQLVMware

About the role

Key responsibilities & impact

Administration and further development of the network infrastructure (LAN, WAN, WLAN, VPN, firewalls)
Operation and maintenance of physical and virtual servers (e.g., VMware vSphere, Proxmox VE) as well as central storage systems
Administration and maintenance of the Microsoft and Linux server landscape
Technical integration of sites and subsidiaries into the existing system landscape
Management and monitoring of SSL/TLS certificates, internal PKI structures, automated renewals and security monitoring as part of centralized certificate management
Coordination, implementation and documentation of IT security and backup concepts
Support in implementing cloud and hybrid solutions (e.g., Microsoft Azure, SAP BTP)
Collaboration with internal departments, subsidiaries, partners and external IT service providers
Monitoring, troubleshooting and performance optimization during ongoing operations
Interface with building services regarding UPS, emergency power supply and early fire detection

Requirements

What you’ll need

Degree in (business) computer science, training as an IT specialist (m/f/d), or equivalent qualification
Several years of experience administering complex IT infrastructures in industrial or production environments
Solid knowledge in: network administration (LAN/WAN/VPN, routing, firewalls, VLANs)
Virtualization (VMware, Proxmox)
IT security and backup systems
Microsoft Server and Linux distributions
Knowledge of SQL, Azure, cloud integrations or S/4HANA integrations is an advantage
Good written and spoken English skills
Structured, independent working style with high technical precision
Team-oriented and willing to undertake occasional international business trips

Benefits

Comp & perks

Attractive compensation according to the collective bargaining agreement for the metal and electrical industry in North Rhine-Westphalia (NRW), including Christmas bonus, vacation pay and contractual special payments
Work–life balance – flexible working hours including a flexitime account, 30 days of vacation and the option to work remotely
Structured onboarding with an individual induction plan and mentoring by a buddy during the onboarding phase
Numerous training and qualification opportunities, occupational health management measures including bike leasing and gym partnerships