Senior Software Solution Designer - (m/f/d) at Deutsche Telekom IT Solutions Slovakia in Košice

Job description

Project Introduction We are looking for an experienced Software Solution Designer to join our international team and contribute to the development and continuous improvement of a strategically important system within the Deutsche Telekom Group. The project supports the planning, construction, inventory, configuration, operation, and optimization of mobile radio networks. Its applications and services provide a consistent data foundation for internal systems and support collaboration with external partners across the mobile network lifecycle. WHAT WILL YOU DO: Translate business needs and customer requirements into effective, scalable IT solutions. Analyze and refine requirements, user stories, business processes, and functional specifications. Design end-to-end solutions for mobile radio network infrastructure across applications, services, APIs, and system interfaces. Decompose complex requirements into clear, development-ready solution components. Create and maintain solution designs, process models, interface specifications, and system documentation. Identify involved systems, interface partners, dependencies, and integration impacts. Define and assess relevant non-functional requirements, including performance, security, availability, and maintainability. Design and validate REST API interactions, data flows, and mappings. Analyze existing mobile radio network systems and identify opportunities for improvement and simplification. Evaluate solution alternatives and communicate recommendations to business and technical stakeholders. Collaborate closely with Product Owners, business analysts, developers, architects, DevOps teams, and system engineers. Support implementation, testing, rollout, and continuous improvement of the solution. Contribute to a clear, consistent, and maintainable system landscape. Document and communicate solution principles, guidelines, and design decisions. YOU WILL SUCCED IF YOU: Have at least five years of experience in solution design, software architecture, business analysis, or a related role within complex IT environments. Have experience designing business applications and end-to-end IT solutions across multiple systems. Understand microservice-based architectures, distributed systems, and API-driven integration. Are able to analyze system dependencies, integration patterns, business processes, and technical constraints. Can create clear models and diagrams using UML and BPMN, including process, activity, sequence, and use-case diagrams. Have experience defining functional and non-functional requirements and turning them into implementable solutions. Are familiar with REST APIs and tools such as Swagger or Postman. Have experience working with Agile methods, such as Scrum, in cross-functional teams. Are confident communicating in written and spoken English at least at B2 level. Would be nice to have: Knowledge of mobile telecommunications or mobile radio network infrastructure. Experience contributing to IT guidelines, solution blueprints, or architecture documentation. Experience supporting testing, implementation, and rollout activities. IT Technical Skills Solution design and architecture, Business and system analysis End-to-end IT solution design Microservice architecture REST APIs and system integration, UML and BPMN Agile methods and Scrum, Jira, Confluence, and Enterprise Architect IT service and business process understanding Soft skills Strong communication, presentation and organizational skills Analytical and structured thinking, Result orientation Customer and business orientation Problem-solving and decision-making Collaboration and knowledge sharing Conflict management and diplomacy Other Skills Organisational skills Diplomacy Project management Other criteria or requirements Work collaboratively with others to achieve goals Be a persistent, creative problem ­solver Remain cool and effective in a crisis Understand business needs and know how to create the tool