1&1 | Germany | 63xxx, 56xxx, 76xxx, 40xxx Düsseldorf | Permanent position | Full time / Home office | Published since: 02.04.2026 on stepstone.de
E2E Solution Architect - 5G ORAN (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
As a EndtoEnd Solution Architect, you play a central role in the technical and strategic construction of our 5G ORAN network with the following tasks:
Analysis, design and evaluation of endtoend solutions in the context of 5G, ORAN, cloud-based network functions and automation. Business - Centered Architecture Development: Delivering customer advantages, cost optimization and business impact from technical solutions. Creation of toplevel management decision templates, including solution strategies, architecture options & decision matrices, risk, cost and value analyses Cross-disciplinary cooperation with Radio, Transport, Core, IT, Cloud, Security and international technology partners. Assessment of new technologies, suppliers and operating models in the ORAN ecosystem. Analyse, evaluate and translate innovation trends in the telecommunications industry into concrete project proposals for 1&1 network development. Identification, evaluation and design of AIUseCases, especially for the Telco context, Support for network development and technology roadmap through clear, prioritized and implementable architectural recommendations.
Multiannual experience as Solution Architect, System Engineer, Enterprise Architect or in a comparable senior role. Methodology competence and experience in request management (Requirements Engineering) Ability to prepare complex technical issues in a targeted, precise and convincing manner. Analytical strength, structured functioning and a pronounced strategic thinking. Deep understanding of the following areas: 5G Core / RAN / ORAN, Cloudnative Architectures (Kubernetes, CNF/VNF) and Telco Automation & Orchestration Very good knowledge of English in word and writing.
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 Free drinks and fresh fruit
Location
 | 1&1 | |
| 40457 Düsseldorf | ||
| Germany |
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