devops engineer OpenStack cloud services

T-Systems International provides business customers with system solutions for digital business. Its portfolio focuses on connectivity, digital solutions, cloud and infrastructure, and security to support digital transformation.

• Support technical due diligence and handover readiness for OpenStack-derived cloud services within Project Meridian;
• Analyze modular cloud software at the service level and reconstruct service boundaries and dependencies;
• Analyze control-plane components, API interfaces, integration dependencies, configuration models, and runtime prerequisites;
• Use AI-assisted software engineering methods to navigate large multi-repository codebases, reconstruct call chains, analyze interfaces, and create technical documentation;
• Support the diagnosis of build and test issues, including dependency resolution, container builds, runtime configuration, and reproducibility;
• Create structured handover artifacts, including service overviews, dependency documentation, API summaries, risk analyses, and onboarding documents;
• Validate AI-assisted findings with DevOps, testing, security, and architecture experts;
• Convert validated findings into actionable engineering backlog items;
• Identify technical debt, maintainability risks, hidden coupling, and missing documentation;
• Clearly distinguish AI suggestions from verifiable technical findings and document all results traceably.

• At least five years of professional experience in software development, cloud platform engineering, DevOps-oriented development, or technical software handover roles;
• Very good Python skills and experience with at least one additional backend or systems programming language, such as Go, Java, C, C++, or Rust;
• Solid practical experience with OpenStack-derived architectures, cloud control planes, distributed services, and API interfaces;
• Experience with AI-assisted development tools for codebase exploration, technical documentation, refactoring support, or build problem analysis;
• Good knowledge of CI/CD, container technologies, and Linux-based development and runtime environments;
• Experience with Git and large multi-repository environments;
• Understanding of service dependencies, configuration models, database usage, and operational runtime prerequisites;
• Strong analytical skills for distinguishing AI-generated suggestions from verifiable technical findings;
• Ability to create concise, structured, and traceable technical deliverables for engineering stakeholders;
• Willingness to collaborate with DevOps, testing, security, and architecture teams in a confidential enterprise environment;
• Nice to have: experience with OpenStack components and services such as Nova, Neutron, Cinder, Keystone, Glance, Horizon, Heat, or Placement; knowledge of message-bus technologies and Kubernetes integrations; experience with Docker, Kubernetes, Helm, and ArgoCD; knowledge of GitLab, Jenkins, API clients, log analysis tools, and dependency scanners; experience with AI coding agents and development environments such as Cursor, Windsurf, Claude Code, Cline, Continue, or AI extensions for VS Code; experience with programmable open-weight or enterprise models such as DeepSeek Coder, Qwen/Qwen-Coder, CodeGeeX, StarCoder, Code Llama, or Mistral; experience creating service maps, API documentation, risk analyses, and structured handover or onboarding documents; knowledge of Infrastructure as Code, build and test automation, and reproducible development and deployment processes; experience with agile methods and converting technical findings into actionable backlog items.

• Flexible working hours;
• Mobile working is available;
• Individual training, conferences, and certifications in cloud, OpenStack, DevOps, and AI;
• Competitive salary package and additional social benefits;
• State-of-the-art tools and hardware;
• Health and pension benefits;
• Applications for vacancies outside Deutsche Telekom AG may be processed outside Deutsche Telekom AG in another European country, including applications for its subsidiaries;
• Severely disabled people are given preference when equally qualified.