Operation and maintenance of our security tools (e.g., VPN, firewalls, identity platforms, antivirus), Further development of our hybrid IT infrastructure, Administration and maintenance of Windows laptops via Entra ID and Intune, Planning, installation, and maintenance of the network infrastructure (including firewalls, switches, WLAN), Support with technical problems (on-site and remote), Implementation of security measures, access controls, and regular updates, Performing data backups and creating and testing disaster recovery concepts, Raising employee awareness through training on IT security and new tools, Implementation of attack detection systems within the scope of KRITIS (SIEM, XDR, SOC), Co-design and further development of the Information Security Management System (ISMS) according to ISO 27001, Support in the introduction of an ISMS