DevOps Engineer – Windows Infrastructure (REF5479D) at DeutscheTelekomITSolutions

Department and Project You will become part of Compost, the infrastructure product squad within the Infrastructure Services Tribe. Compost is responsible for providing and operating critical compute, storage, and platform services that underpin internal infrastructure components as well as mission-critical business applications.In this role, your primary focus will be on Windows-based infrastructure services, operated in cloud and hybrid environments, including AWS, while working in a squad that owns a broader infrastructure portfolio.You think in services and lifecycles, not just systems: from design and provisioning to stable operation, continuous improvement, and decommissioning.You embrace a DevOps mindset, combining operational responsibility with automation, standardization, and close collaboration across teams. Reliability, security, and operability are at the core of your daily work. A key part of this role is not only to ensure stable operations, but also to drive forward unresolved topics in the Windows environment, reduce operational dependency on individual experts, and actively transfer knowledge to internal team members. Main tasks As a DevOps Engineer • Operate, maintain, and continuously improve Windows Server environments in production and non-production • Take end-to-end ownership of Windows virtual machines across their entire lifecycle • Operate Windows-based services in AWS and hybrid infrastructure environments • Perform patching, updates, and security hardening of Windows systems • Analyze and resolve incidents and operational issues in a critical production environment • Identify, structure, and actively work through existing open topics and operational backlog in the Windows environment • Drive forward unresolved infrastructure topics independently and ensure tangible progress within the assignment period • Automate recurring operational tasks and contribute to Infrastructure-as-Code based service provisioning • Contribute to standardized infrastructure services consumed via Infrastructure-as-Code • Collaborate closely with Linux, storage, container, cloud, and platform engineers within the squad • Support platform services such as: • Virtual machines (Windows & RHEL) • Storage services (block and NAS) • Virtual workplaces • Maintain documentation, operational procedures, and service standards • Actively contribute to continuous improvements in stability, automation, and security • Transfer knowledge to internal team members and support their upskilling in Windows-based infrastructure operations • Reduce dependency on single experts by establishing transparency, documentation, and sustainable knowledge sharing • Prepare a structured handover of open topics, solutions, and operational know-how to internal colleagues