Security Engineer

As an IT Security Engineer (m/f/d), you will be responsible for strengthening and protecting our organization's IT environment against evolving cyber threats. You will work closely with infrastructure, software, and operational teams to design, implement, and maintain security controls that ensure the confidentiality, integrity, and availability of our systems and data. We are looking for a hands-on security professional who is passionate about cybersecurity, enjoys solving complex challenges, and thrives in a fast-paced, innovative environment. What is your Day to Day Mission:Monitor, analyze, and respond to security events, alerts, and incidents Develop and enforce security policies in collaboration with internal stakeholders, taking into account industry-specific compliance requirementsPerform system hardening and security baseline management for servers, endpoints, and critical infrastructure components.Support the deployment and administration of security solutions such as Endpoint Detection & Response (EDR), SIEM, vulnerability management, and identity security platforms.Design, implementation, and operation of firewall infrastructures using Fortinet and Sophos technologies. Manage and improve access control concepts, identity management processes, and privileged access security.Support for audits and certifications in accordance with industry-specific security standards (e.g., BSI Basic Protection, ISO/IEC 27001)IT Collaboration with national and international subsidiariesInvestigate emerging threats, evaluate new security technologies, and contribute to the continuous enhancement of our cybersecurity posture.Support for user network issues.Create and maintain documentation, standards, and operational procedures.What you bring to the team:A degree in Computer Science, Cyber Security, Information Technology, or a comparable qualification. A plus would be CCNA, CompTIA+ Professional experience in IT security, system administration, infrastructure engineering.Good understanding of cybersecurity principles, attack vectors, threat detection, and incident response processes.Hands-on experience with security technologies such as EDR/XDR, SIEM, vulnerability scanners, firewalls, or identity and access management solutions.Knowledge of Windows environments; experience with Linux systems is highly desirable.Familiarity with Microsoft 365 security services, Entra ID, Intune, and cloud security concepts.Work with cloud security tools like Microsoft Defender for Cloud, Azure Security Center  Understanding of networking, including TCP/IP, DNS, VPNs, firewalls, and network segmentation.A proactive mindset, high attention to detail, and a genuine passion for cybersecurity.Excellent communication skills and the ability to collaborate effectively across technical and non-technical teams.Fluency in English; German language skills are considered a plus.Why Quantum-Systems:We believe in the power of combined efforts: straightforward tech expertise paired w