IT System Administrator Windows (m/f/d)

About the Position

Quantum-Systems GmbH is seeking an IT System Administrator Windows (m/f/d) to ensure the security and stability of our global IT landscape. As part of our IT team, you will ensure that our global IT infrastructure remains secure, stable, and resilient. With your expertise in Windows, Linux, and IT security, you will play a crucial role in protecting our systems, data, and processes.

Responsibilities

• Hardening and secure operation of Windows-11 endpoints (Security Baselines, GPO, security policies) used as Ground Control Stations.
• Administration and rollout of Rohde & Schwarz Trusted Disk (BSI-approved full disk encryption for VS-NfD).
• Implementation and compliance with guidelines for handling VS-NfD classified information.
• Operation and maintenance of Symantec Endpoint Security (Broadcom): Policies, updates, incident management.
• Vulnerability management, patch management, and compliance checks.
• Documentation of hardening measures and participation in security concepts.

Requirements

• Experience in Windows-11 administration and hardening (Security Baselines, BitLocker/Alternatives, Credential Guard).
• Practical experience with Rohde & Schwarz Trusted Disk or similar encryption solutions.
• Experience with Symantec Endpoint Security or comparable EDR/AV products.
• Knowledge of ACLs, GPO, Intel TET, and PowerShell.
• Experience in hardening common distributions (Debian/Ubuntu, RHEL/SUSE).
• Familiarity with CIS Benchmarks or BSI guidelines; ideally automation with Ansible and Bash scripting.
• Good network knowledge (TCP/IP, DNS, VLAN, firewalling).
• Proficiency in using Wireshark for network traffic analysis and troubleshooting.
• Understanding of requirements for handling VS-NfD classified information (ideally experience in similarly classified environments; willingness to undergo security clearance according to SÜG).
• Understanding of vulnerability and patch management processes.
• Structured, documentation-oriented work approach; fluent in German and English (spoken and written).
• Good communication skills, especially with software developers.
• Certifications such as CompTIA Security+, LPIC, Microsoft SC-/MD series.
• Experience in regulated environments (BSI, ISO 27001).

We Offer

• Employer-funded occupational pension scheme: We support you in planning for your future.
• Flexible working hours: Through trust-based working time, you can shape not only your working hours but also your work-life balance independently.
• Remote work: If it gets too hectic in the office, you have the option to work remotely one flexible day per week to maintain the necessary balance.
• Stay active: With the EGYM Wellpass, you have access to thousands of sports and fitness offers – we naturally contribute to the costs.
• Bike leasing: We support you in staying environmentally conscious, mobile, and healthy.
• Corporate benefits: Your opportunity for attractive offers and discounts from well-known providers and brands such as Adidas, Apple, Expedia.
• Employee events: We not only want to grow together but also celebrate our successes together.
• Lunch card: We sponsor your daily lunch budget.
• Company shuttle: Enjoy our convenient shuttle service that picks you up from Laim in Munich and takes you to our location, with return trips at the end of the workday.

About the Company

Quantum-Systems specializes in the development, design, and production of small unmanned aerial systems (sUAS). The company's electric vertical takeoff and landing (eVTOL) aircraft are designed for maximum flight duration and versatility, offering users a seamless user experience. By integrating state-of-the-art software functions such as edge computing and AI-assisted real-time data processing, Quantum Systems builds next-generation UAS for customers in the security, defense, public safety, commercial, and geographic operations sectors across Europe.

Our Commitment

We are a globally open company that not only values but actively promotes diversity. Regardless of gender, age, ethnic origin, religion, sexual orientation, or disability, we firmly believe that the diversity of our employees is a key component of our success.

At our company, every voice is heard, and every perspective is valued. We believe that our differences enrich us and help us find creative solutions and innovative ideas. We are proud to create an inclusive work environment where all employees can reach their full potential.