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Deutsche Glasfaser Holding

We are the digital provider of the regions. As a pioneer and pacesetter in the industry, DeutscheOSS plans, builds and operates open-source fiber optic connections for private households, companies and public institutions. Our country has a future - a digital one at that! For decades, demographic change and the promise of new ways of living and working have ensured that people are leaving rural areas to move to the cities. However, a trend reversal has recently become apparent: rural regions are developing further and are sometimes faster and more innovative than some large cities. For many people in Germany, the country is once again becoming a future region where ideas are created and brought to life. And this future will be digital – if the conditions are right. Privacy

02/03/2026
Full time
Cyber ​​Security Engineer (f/m/d)
Deutsche Glasfaser Holding Düsseldorf, Germany
As the digital provider for the regions, we seize opportunities, demonstrate initiative, take responsibility, and work collaboratively. With over 1,900 colleagues, local communities, businesses, and society. Join us for a stronger community. True to our motto: Shaping great things together. Job description Monitoring the security landscape:   You identify threats early and thus make a significant contribution to the stability and security of the IT architecture. Implementation of incident response measures:   Through your structured approach, you ensure rapid analysis, effective containment, and sustainable recovery. Administration of Microsoft Defender:   With your professional support, you increase the level of protection of endpoints and systematically reduce potential attack surfaces. Using Microsoft Sentinel (monitoring and use cases):   By using targeted use cases, you improve the depth of detection and accelerate security-relevant decision-making...