Network Engineer (Virtualization, Automation) (REF5561B)

As Hungary’s most attractive employer in 2025 (according to Randstad’s representative survey), Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group. The company provides a wide portfolio of IT and telecommunications services with more than 5300 employees. We have hundreds of large customers, corporations in Germany and in other European countries.

DT-ITS recieved the Best in Educational Cooperation award from HIPA in 2019, acknowledged as the the Most Ethical Multinational Company in 2019. The company continuously develops its four sites in Budapest, Debrecen, Pécs and Szeged and is looking for skilled IT professionals to join its team.

The Technology Engineer will focus on the network and connectivity layer of a Non-VMware private cloud platform within the FCI Service Family, based on SUSE and KVM virtualization. The role is primarily responsible as engineering support  for Software-Defined Networking (SDN) capabilities, enabling secure multi-tenant communication, segmentation, and integration with enterprise network standards. The engineer will ensure that network architecture, routing, and security controls are properly implemented across the private cloud stack and integrated with compute and storage component

Key responsibilities

• Design and implement a SUSE-based virtualization platform using KVM as the hypervisor
• Define standard VM blueprints (CPU, RAM, storage, network) for SAP and non-SAP workloads.
• Implement Software-Defined Networking (SDN, OpenNebular) for flexible tenant isolation, micro-segmentation, and multi-tenant support.
• Define security zones, firewall rules, and routing patterns aligned with SAP and enterprise requirements.
• Development of high level and low level documents for the respective area (Compute, Storage, Network, Container, Orchestration)
• Integration of new platform components into the existing integration points / standard technologies (such as AdminLan, etc.)
• Enable request, change, and incident workflows that trigger automation (Terraform/Ansible) and update CMDB where needed.
• Maintain a living architecture document covering all layers: compute, storage, network, automation, observability, integrations.
• Open Source software define network knowledge (preferably Nebula or any other)

Required skills

• Software define network base on open source ..  OpenNebula (or different open source)
• Infrastructure troubleshooting

Nice to have

• Terraform bascis
• Ansible bascis
• Grafana
• Basic virtualization KVM
• Kubernetes Basics

* Please be informed that our remote working possibility is only available within Hungary due to European taxation regulation.