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.

• 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

• Strong hands-on experience in Windows 11 administration and hardening (security baselines, Bit Locker/alternatives, Credential Guard)
• Experience with Rohde & Schwarz Trusted Disk or comparable encryption solutions
• Experience with Symantec Endpoint Security or comparable EDR/AV products
• Knowledge of ACLs, GPOs, Intel TET, and Power Shell
• Experience hardening common distributions (Debian/Ubuntu, RHEL/SUSE)
• Experience working with CIS Benchmarks and/or BSI requirements; ideally with automation using Ansible and Bash scripting
• Good knowledge of networking concepts (TCP/IP, DNS, VLANs, firewalling)
• Proficiency in using Wireshark for network traffic analysis and troubleshooting
• Knowledge of the requirements for handling information classified as VS-NfD (ideally experience working in environments with corresponding security classifications; willingness to undergo a security clearance procedure in accordance with the German Security Clearance Act (SÜG))
• Understanding of vulnerability and patch management processes
• Structured, documentation-oriented approach to work; proficiency in written and spoken German and English
• Strong communication skills, particularly when working with software developers
• Certifications such as CompTIA Security+, LPIC, or Microsoft SC-/MD-series certifications
• Experience working in regulated environments (BSI, ISO 27001)

• We believe in the power of combined efforts: straightforward tech expertise paired with a customer-centric focus.
• We are industry pioneers who are ambitious, bold,and visionary.
• We push limits, think outside-the-box and strivefor technological excellence toshape the future of aerial data.
• We promise to be your runwayfor individual and professional growth.

• Company pension scheme: We support you so that you can already make provisions for later.
• Flexible working hours: With trust-based working hours, you are not only responsible for your working hours, but also for your work-life balance.
• Mobile Work: If things get a little busy in the office, you have the option to work remotely one flexible day per week to create the right balance.
• Stay active: With EGYM Wellpass, you get access to thousands of fitness and sports facilities — and of course, we subsidize the membership.
• Bike-Leasing: We support you in staying environmentally mobile and healthy.
• Corporate Benefits: Your opportunity for attractive offers and discounts from well-known suppliers and brands, e.g. Adidas, Apple, Expedia.
• Employee events: We not only want to grow together, but also celebrate our successes together.
• Lunch-Card: Be powerful with delicious energy, daily lunch budget is…