1&1 | Germany | 40xxx Düsseldorf | Permanent position | Full time / Home office | Published since: 25.08.2026 on stepstone.de
(Senior) Security Manager (m/f/d)
1&1 is one of the leading telecommunications providers in Germany with over 3,100 employees and nearly 16 million customer contracts. With pioneering spirit, unusual ideas and creative teams, we have won a leading market position in mobile and broadband connections. By combining the over 67,000 km long 1&1 fiber optic network and regional networks, we create Germany's most extensive fiber optic network. We also build the most modern 5G network in Europe, based on the new Open-RAN technology. With open interfaces and 5G functions in a powerful cloud infrastructure. Continue the 1&1 success story. Be part of 1&1. .
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Your tasks • Your profile • What we offer
You advise and support the development of security concepts, security audits and certifications as part of the development of our 5G network. In particular you are responsible for: Initiation and coordination of security projects. Strong participation in security concepts. Implementation of security audits and certifications. Reporting on operational security measures and presentation on top management levels. Testing compliance and implementation of compliance requirements. Control and evaluation of security reporting and risk management.
In addition to a completed study of computer science, business informatics or comparable training with business and professional experience, you have several years of experience as a security manager or security consultant in risk or compliance management. You also have: Comprehensive regulatory and technical security know-how on expert levels, in particular in the mobile network operator environment. Very good knowledge of the ICT and the current IT/Cyber Security market. Experiences in the management of large projects, especially with political significance and publicity. Experience in audit management. Very good communication strength and stakeholder management both internally and externally. High sense of responsibility and customer orientation as well as pronounced analytical skills. Very good knowledge of German and English in word and writing. Increased readiness for business trips (25-50%).
Attractive salary Strong community of team players Confidential working time with flexible classification and the possibility of working up to 40% mobile Numerous training options on and offline Discounts on 1&1 products and for various leisure offers In-house restaurant Free drinks and fresh fruit Jobrad grant
Location
 | 1&1 | |
| 40457 Düsseldorf | ||
| Germany |
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