IT Administrator managing high-security ICT system at Quantum Technology Laboratories in Vienna. Responsible for maintaining a secure and stable IT infrastructure with a focus on advanced security requirements.
Responsibilities
Operation and protection of an ICT system with strict separation of network domains ("red-black separation")
Design, implementation, and monitoring of security-relevant network measures, such as firewalls, VLANs, gateways, filtering mechanisms, and data-diode-based transmission paths
Execution of security monitoring, log analysis, system hardening, and regular audits to ensure compliance
Management of user and access control concepts, including implementation of least-privilege and zero-trust principles
Operation and maintenance of local server environments (physical and virtual)
Ensuring smooth 24/7 operation of infrastructure components (including participation in an on-call rotation)
Close collaboration with security engineering, development, and management teams
Providing user support in a strictly regulated IT environment
Requirements
Completed degree or relevant IT training (e.g., computer science, IT security, system administration) or equivalent professional experience
Several years of experience administering security-critical IT systems
In-depth knowledge of: Network segmentation and secure network architectures, Red-black separation concepts / domain separation, Linux and/or Windows server administration, Virtualization technologies (e.g., VMware, KVM, Proxmox), Storage systems (NAS/SAN), Git/GitLab operation, CI/CD services, and internal DevOps workflows
Experience with monitoring tools (e.g., Prometheus, Grafana, ELK stack) is an advantage
Familiarity with security standards (BSI guidelines, hardening guides, audit requirements)
Benefits
Flexible work arrangements in a hybrid model combining remote and onsite collaboration
A collaborative and innovative environment in Vienna, a global hub for quantum research and space technology
The opportunity to jointly develop projects and products at the thrilling junction between quantum and space technology
Balanced work-life integration for our employees
Attractive workplace with excellent infrastructure at Wienerberg
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