Security, Network, and IT Administrator

Stellenbeschreibung:

Key Skills

  • Hyper‑V expert (alternative: VMware ESXi)
  • Scripting and coding experience for Hyper‑V automation
  • Advanced security knowledge, especially regarding system hardening
  • Experience with network devices (switches, routers, firewalls)
  • Basic knowledge of database handling would be a plus
  • Advanced Python skills for security testing automation would be a plus
  • Structured and conscientious way of working is mandatory

How You'll Make an Impact

Administration and maintenance of a virtualized test environment (Hyper‑V) serving as the technical foundation for critical infrastructure projects in energy systems (HVDC, FACTS), including:

  • Install, configure, and maintain virtual machines, operating systems, and applications within the test environment
  • Install and configure physical and virtual network devices, including switches, routers, and firewalls
  • Monitor system and network performance to identify and predict problems and make proactive adjustments
  • Manage the full lifecycle of virtualization and network components in alignment with cybersecurity guidelines and mandatory patching activities
  • Maintain and manage backup and recovery processes for the test environment
  • Troubleshoot and resolve issues across the Hyper‑V environment and connected network infrastructure
  • Administer and maintain security applications within the test environment, including endpoint protection, vulnerability scanning tools and access control systems
  • Provide technical support and create documentation for Hyper‑V processes, network configurations and security procedures
  • Track technical developments and technological trends in IT and OT security; continuously expand know‑how relevant to energy system test environments
  • Create and maintain disaster recovery plans and procedures for responding to major outages affecting the test infrastructure
  • Identify, assess and remediate security issues as they arise; implement and refine system hardening measures across the environment

What You Bring

  • MSc degree in computer science or electrical engineering, ideally with a focus on IT, security, automation or software development - or comparable education and professional training with additional qualifications
  • Proven hands‑on experience in IT or system administration (Windows mandatory; Linux experience a strong plus; macOS is a plus)
  • Strong knowledge of virtualization technologies, with focus on Hyper‑V and/or VMware ESXi
  • Solid experience with physical and virtual network infrastructure - configuration and administration of switches, routers and firewalls
  • Experience with containerisation technologies (e.g. Docker, Kubernetes)
  • Scripting experience with common languages such as Bash and Python; experience with PowerShell for Windows/Hyper‑V automation is a play
  • Ability to work in a self‑guided and result‑oriented way, with a clear drive to become a recognised technical expert in your area
  • Proficient in spoken and written English; German is a plus

What we offer

  • Competitive remuneration
  • 24 days off per year and floating days
  • Private clinic health services - Regina Maria Medical Insurance
  • Flexible benefits through Up multibenefits platform
  • Team events, online or at the office
  • Training and development opportunities with allocated budget
  • Professional Certifications
  • Knowledge sharing context

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Stelleninformationen

  • Veröffentlichungsdatum:

    29 Apr 2026
  • Standort:

    Berlin
  • Typ:

    Vollzeit
  • Arbeitsmodell:

    Vor Ort
  • Kategorie:

  • Erfahrung:

    2+ years
  • Arbeitsverhältnis:

    Angestellt

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