Your Task

This role is for a Lead Solution Architect within the BM RANi (Best Mobile RAN Infrastructure) domain. The position involves taking end-to-end ownership of functional solution architecture and translating business vision and requirements into sustainable, scalable, and future-proof architectural solutions. This is a functional and strategic architecture role operating at the intersection of business and IT, not a programming or hands-on development position.

About the Project

The BM RANi domain focuses on planning, building, deploying, and optimizing the IT landscape that supports the mobile access network of Deutsche Telekom. The business focus is to ensure high network coverage, high quality, capacity, and innovation — enabling Deutsche Telekom to maintain and further strengthen its "Best Network" position. Automation, scalability, and architectural modernization are key enablers in handling the growing complexity and explosion in the number of network elements.

The domain covers IT systems and solutions for:

Network planning and rollout (including 5G, Small Cells, and expansion of network structures)
Inventory, configuration, and optimization of the RAN
Integration with assurance, workforce control, and related support systems
Collaboration with internal and external partners as well as other mobile operators

Responsibilities

Take ownership of end-to-end functional solution architecture within the HUB
Translate business requirements into clear architectural concepts and functional designs
Act as a trusted advisor for business stakeholders and explain architectural principles and solutions in business language
Define and communicate architectural strategy and direction for the HUB
Establish and maintain architectural guardrails and design principles
Document and formalize key decisions through Architecture Decision Records (ADR)
Ensure that solutions remain within defined architectural boundaries and align with enterprise standards
Collaborate closely with business stakeholders to refine and clarify requirements
Work hand-in-hand with process designers, solution designers, cluster architects, and implementation teams
Facilitate alignment across domains and ensure that cross-domain impacts are understood and addressed
Drive architectural consistency, sustainability, and long-term value creation
Make decisions, stand by them, and guide the HUB towards clearly defined architectural goals