Job Description
1&1 Mobilfunk GmbH, part of the 1&1 Group and United Internet AG, is building Europe's first fully virtualized, cloud-native 5G network.
With around 150 employees and the backing of a listed telecom group, the company combines greenfield agility with industrial-scale impact.
We are seeking an experienced technology executive with full end-to-end responsibility for network architecture, engineering, rollout, and operations — and who will serve as the CEO's primary technical and operational partner.
- Full end-to-end ownership of technology, architecture, engineering and operations
- Shape and evolve the cloud-native 5G architecture across all network domains
- Ensure robust delivery and transparent governance for all network programs
- Lead planning, deployment, operations and performance with root-cause resolution
- Drive automation, efficiency and observability across the entire network lifecycle
- Build and lead an international engineering & operations organization
- Act as the CEO's primary technical partner and executive-level representative
- 15+ years in senior technology leadership within telecom or digital infrastructure
- Deep expertise in 5G Core, Open RAN and cloud-native architectures
- Proven delivery in large-scale network build-out, rollout and operations
- Leadership experience in international engineering or operations teams
- Strong execution and transformation capability with clear, data-driven decisions
- Solid CAPEX/OPEX understanding and business-case orientation
- High resilience, ownership and ability to operate in fast-moving environments
- Technical degree; fluent English (German a plus)
- Lead the build and scale-up of Europe's first fully virtualized, cloud-native 5G network
- Broad end-to-end responsibility across architecture, engineering, rollout and operations
- High strategic relevance within a financially strong, publicly listed telecom group
- Real ability to shape technology, processes, structures and culture in a greenfield environment
- Direct collaboration with the CEO and visibility at executive and group level
- International vendor ecosystem, modern toolchain and no legacy constraints
- Long-term mandate to build a scalable, automated and high-performing network organization