Brief Description of Duties:The core responsibility of the IT Network Engineer is the management of all network components, firewalls, load balancers, IPS systems, dial-in systems, and data centers. Particular emphasis is placed on network security, monitoring of the entire network, and minimizing the impact of internal and external attacks (hackers, botnets, APT, DDoS, etc.).Day-To-Day Responsibilities:Network Infrastructure Management:Review, design, planning, expansion, implementation, and operation of the network infrastructure, including Internet connections.Apply modern "state-of-the-art" technologies to ensure trouble-free and uninterrupted productive operations.Network Monitoring:Monitor the network using tools like Icinga, Stealthwatch, and Checkpoint, focusing especially on transaction processing within the agreed operating hours.Firewall and Security Systems Customization:Customize firewall and security systems to meet organizational needs.Active Network Security Monitoring:Utilize SIEM for active network security monitoring to minimize the impact of attacks from hackers, botnets, APT, and DDoS.Capacity and Performance Management:Manage and optimize network capacity and performance.Disaster Recovery Planning:Create disaster recovery concepts for the network area and conduct and document corresponding DR exercises.Business Process and Data Analysis:Analyze and understand the involved business processes and data.Workshop Participation:Prepare for and participate in workshops for new projects.Process Optimization:Continuously analyze and optimize process flows.Support and Problem-Solving:Support the specialist departments in problem-solving.Project Participation:Participate in various projects to improve network systems.Incident, Problem, and Change Management:Handle incident, problem, and change management tasks.On-Call Duty:Participate in on-call duty rotations to ensure continuous network operation.What we are looking for:Education and Experience:Completed IT-specific training (e.g., IT specialist).Experience in project participation.Technical Skills:Excellent networking knowledge in CISCO and F5 environments.Excellent knowledge of firewall technologies.Excellent knowledge of operating systems and networks.Excellent knowledge of network design and performance optimization.Excellent network security knowledge.Excellent knowledge of certificate management.Team player and resilience.Security and Compliance:Familiarity with regulatory standards such as PCIDSS, ISO27001, GDPR, and KRITIS.Soft Skills:Strong analytical and problem-solving skillsAbility to work under pressure and in a team environment, excellent communication skills, and a high sense of responsibility.Friendly and confident demeanor.Languages:Proficient in German and English to facilitate clear communication and documentation.Adaptability:Ability to learn and adapt to new technologies and processes quickly