IT System Administrator Windows (m/f/d)

At Quantum Systems, we are redefining the future of unmanned systems with intelligent, autonomous solutions that enable better decisions in critical environments. Our mission is to combine cutting-edge technology, AI, and robust engineering to create next-generation intelligence solutions. As part of our IT team, you will play a key role in ensuring the security, stability, and resilience of our global IT infrastructure. What is your Day to Day Mission: Hardening and secure operation of Windows 11 endpoints (security baselines, GPOs, security policies), including endpoints used as Ground Control Stations Administration and rollout of Rohde & Schwarz Trusted Disk (BSI-approved full-disk encryption for VS-NfD classified information) Implementation and compliance with requirements governing the handling of information classified as VS-NfD Operation and maintenance of Symantec Endpoint Security (Broadcom): policies, updates, and incident handling Vulnerability management, patch management, and compliance assessments Documentation of hardening measures and contribution to security concepts