<div class="show-more-less-html__markup show-more-less-html__markup--clamp-after-5 relative overflow-hidden"> <p>NAXCON GmbH, located in the heart of Freiburg, is at the forefront of the German IT and engineering industry.</p><p>Our experts have extensive knowledge in software and hardware development, state-of-the-art electronics, and future-oriented technologies such as artificial intelligence and virtual reality.</p><p>We are not only dedicated to project work for our customers, but also intensively pursue in-house innovation projects as well as research &amp; development. Renowned companies from a wide range of German industries place their trust in us - demonstrating the outstanding expertise and commitment of our engineers.</p><p><br/></p><p><strong>Position</strong>: Senior System Engineer (Firewall Administration)</p><p><strong>Location</strong>: Bonn Hardtberg, Frankfurt, Berlin, München, Wilhelmshaven, Rheinbach, Leipzig (One person will be hired for each location)</p><p><strong>Field</strong>: Defense</p><p><strong>Type</strong>: Full-time/ 60% Remote</p><p><br/></p><p><strong>Position Overview</strong></p><p>The Senior System Engineer is responsible for the analysis, implementation, and documentation of firewall configurations within a complex IT infrastructure environment. The role ensures that required network communications are securely enabled while maintaining compliance with established IT security policies and standards.</p><p><br/></p><p><strong>Key Responsibilities</strong></p><p><strong>Firewall Request Handling</strong></p><ul><li>Analyze and evaluate incoming firewall requests from ticketing systems</li><li>Review technical and functional requirements including source/target systems, ports, protocols, and communication flows</li><li>Coordinate with application owners, requestors, and network teams to clarify requirements</li><li>Assess requests in accordance with IT security policies</li></ul><p><br/></p><p><strong>Firewall Rule Implementation</strong></p><ul><li>Configure and implement firewall rules across centralized and decentralized environments</li><li>Adjust and optimize existing rule sets following the principle of least privilege</li><li>Execute changes in alignment with established change management processes</li><li>Ensure minimal disruption to existing network communications</li></ul><p><br/></p><p><strong>Testing &amp; Validation</strong></p><ul><li>Perform functional testing of implemented firewall rules</li><li>Analyze network traffic and logs for troubleshooting and validation</li><li>Support business units during communication validation processes</li></ul><p><br/></p><p><strong>Documentation</strong></p><ul><li>Maintain complete and accurate documentation of all firewall configurations</li><li>Update configuration records and network documentation</li><li>Ensure audit-compliant documentation of all changes</li></ul><p><br/></p><p><strong>Operations &amp; Optimization</strong></p><ul><li>Regularly review firewall rules for necessity, efficiency, and security compliance</li><li>Identify and remove outdated or redundant rules</li><li>Contribute to continuous improvement of firewall and network security processes</li></ul><p><br/></p><p><strong>Qualifications &amp; Skills</strong></p><p><br/></p><p><strong>Education &amp; Certifications</strong></p><ul><li>Degree in Information Technology, Computer Science, or a related field, or equivalent professional experience</li><li>Certification in network or security technologies (e.g., CCNP or comparable)</li></ul><p><br/></p><p><strong>Professional Experience</strong></p><ul><li>Minimum 5 years of experience in network administration or a similar role</li><li>Proven experience in firewall configuration and network security environments</li></ul><p><br/></p><p><strong>Technical Skills</strong></p><ul><li>Strong knowledge of firewall technologies and network protocols</li><li>Experience with change management and IT service management processes</li><li>Ability to analyze network traffic and troubleshoot connectivity issues</li><li>Familiarity with ticketing systems and configuration documentation</li></ul><p><br/></p><p><strong>Languages</strong></p><ul><li>German: C1 level</li><li>English: B1 level</li></ul><p><br/></p><p><strong>Soft Skills</strong></p><ul><li>Strong teamwork and collaboration skills</li><li>Professional communication and interpersonal abilities</li><li>Structured, analytical, and solution-oriented working style</li></ul><p><br/></p><p><strong>Additional Information</strong></p><ul><li>Hybrid working model with a significant remote work share (approx. 60%)</li><li>Work in a structured, compliance-driven environment with high security standards.</li></ul><p><br/></p><p><strong>What we offer:</strong></p><p><strong>Join a cosmopolitan and internationally mixed team:</strong> We welcome individuals from all backgrounds and cultures to contribute their unique perspectives and talents to our team.</p><p><strong>Polish your German language skills:</strong> If you are looking to improve your German language skills, we offer a supportive environment where you can practice and develop your language abilities: whether you are a beginner or an advanced speaker.</p><p><strong>Benefit from a fixed contact person from the company: </strong>We understand the importance of having a reliable point of contact within the company. That's why we assign a dedicated contact person who will provide guidance and support throughout your employment with us.</p><p><strong>Professional growth and development: </strong>With us, our engineers can immerse themselves in new industries or projects after just 1-2 years and actively transfer knowledge.</p><p><strong>Enjoy regular team events with the company:</strong> We believe in the power of team building and fostering positive relationships within the workplace. That's why we organize regular team events to promote collaboration and strengthen our team bonds.</p><p><strong>Competitive compensation package: </strong>At NAXCON, we believe that our engineers are our greatest asset. That's why we offer a comprehensive and competitive compensation package that includes a salary commensurate with experience and expertise.</p> </div>