1&1 is a Montabaur-based telecom operator selling mobile and broadband, running a mixed stack of legacy Informix, Perl and ASP.NET alongside Kubernetes, Prometheus and a 5G/vRAN core now adopting O-RAN. A new Head of AI role, PyTorch/TensorFlow/Ray tooling and job posts about prompt standards and a shared AI toolchain show an enterprise AI program being formalized for customer service, analytics and engineering workflows.
Notable leadership hires: Head of AI
1&1 is a publicly listed German telecommunications company headquartered in Montabaur, Rheinland-Pfalz, with 1,001–5,000 employees. It serves consumers with mobile and broadband connections, combining its own fiber network with regional networks. The company is also building a 5G mobile network on Open RAN technology with cloud-based infrastructure. Current hiring is concentrated in Germany across engineering, marketing, product, sales and data teams.
1&1 uses Docker, Kubernetes, Python, MySQL, Informix, PHP, C#, ASP.NET MVC, Grafana and Prometheus, plus Citrix, Hyper-V, Jira, Confluence, Adobe Analytics, Tealium iQ and AI frameworks like PyTorch, TensorFlow and Ray.
Job posts point to a talk-to-your-data analytics tool, prompt and dialog architecture for customer-facing AI, AI agent backlogs, AI-assisted coding and testing workflows, and assistive tools for employee conversations and email.
1&1 is headquartered in Montabaur, Rheinland-Pfalz, Germany, and its current hiring is focused in Germany.
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1&1's technology stack, projects, and hiring signals are inferred from public hiring and company data — career pages, public listings, and company web presence — then clustered and de-duplicated. Figures are estimates that refresh over time. Read our full methodology →
This is not an official vendor or customer list. It is a technology-adoption signal inferred from public data, intended for B2B research.
