IT System Administrator – Infrastructure

Jobtailor; Schalksmühle; Vor Ort; EUR 60.000 - 80.000; Vollzeit

Zusammenfassung

Jobtailor is seeking an experienced IT Infrastructure Administrator in Germany to manage and develop our network and server landscape. You will handle LAN/WAN/VPN, security, and central storage in an industrial environment.

You will work with Azure and SAP BTP, coordinate sites and subsidiaries, maintain PKI, SSL certificates, and ensure reliability and performance while collaborating with internal teams and external service providers.

Qualifikationen

• Degree in Computer Science or IT Specialist training, or equivalent qualification.
• Several years of experience administering complex IT infrastructures in industrial or production environments.
• Solid knowledge of network administration (LAN/WAN/VPN, routing, firewalls, VLANs).
• Experience with virtualization (VMware vSphere, Proxmox).
• It security and backup systems expertise.
• Proficiency with 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.

Aufgaben

• 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

Kenntnisse

Network Administration

Routing

Firewalls

VLANs

SSL/TLS Management

Virtualization

SQL

Cloud Integrations

S/4HANA Integrations

Backup Systems

Ausbildung

Degree in Computer Science

IT Specialist Training

Tools

VMware vSphere

Proxmox VE

Microsoft Azure

SAP BTP

Jobbeschreibung

• 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

• 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

Core Competencies

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 Administration
• Virtualization (VMware, Proxmox)
• IT Security and Backup Systems
• Microsoft Server and Linux Distributions
• Cloud Solutions (Microsoft Azure, SAP BTP)

ATS Optimization Keywords

Hard Skills

• Network Administration (LAN/WAN/VPN)
• Routing
• Firewalls
• VLANs
• SSL/TLS Management
• Virtualization
• SQL
• Cloud Integrations
• S/4HANA Integrations
• Backup Systems

Soft Skills

• Structured Working Style
• Independent Working Style
• Team-Oriented
• Good Communication Skills

Certifications & Qualifications

• Degree in Computer Science
• IT Specialist Training

Industry Keywords

• IT Infrastructure
• Industrial Environments
• Production Environments
• Centralized Certificate Management
• Performance Optimization

Tools & Technologies

• VMware vSphere
• Proxmox VE
• Microsoft Azure
• SAP BTP