Network Engineer - Industrial AI Cloud

About the role

Deutsche Telekom IT Solutions is looking for a Network Engineer to join its new networking team for the Industrial AI Cloud, a joint project with NVIDIA. You will provision and manage switches, firewalls, routers and border gateways in the core environment, implement and tune monitoring, and coordinate with Infrastructure and Platform teams to deliver and improve services following ITIL processes.

Key responsibilities

• Coordinate network lifecycle activities (installations, upgrades, changes, firmware updates) and manage network interconnections and documentation with the Data Center, IaaS and PaaS layers.
• Provision and maintain InfiniBand switches and switch/firewall configurations according to ITIL standards.
• Develop and maintain automation scripts to orchestrate the scope and handle configuration changes throughout the project.
• Maintain network environments, apply patches and manage firmware upgrades at scale.
• Set up monitoring and observability, follow incident, problem and change management workflows, write runbooks and SOPs, and adhere to Zero Outage guidelines.
• Manage a unified fabric combining InfiniBand and Ethernet/RoCE, plus a separate 1 Gbps Ethernet and serial console for out-of-band management, and PE/CE connectivity via Cisco or Juniper routers and firewalls.
• Work closely with Platform Engineers and AI solution teams on deployments and operations.

Required profile

• Experience in network installation, maintenance and operations.
• Deep understanding of InfiniBand, RoCE and low-latency high-throughput networking for AI/HPC workloads.
• Experience with NVIDIA/Mellanox switch configuration and UFM management.
• Knowledge of Cisco or Juniper routers and BGP/OSPF, and of Linux networking (Cumulus OS, Ubuntu, Debian).
• Familiarity with NOC/SOC procedures and on-call rotation.
• Firewall and security management with FortiGate (policies, NAT, VPNs, IDS/IPS, HA).
• Hands-on experience with switch provisioning, firmware upgrades, patch management and configuration backups.
• Working knowledge of ITIL incident, problem and change processes.

Required skills

• InfiniBand, RoCE, Cumulus OS, UFM, FortiGate, Cisco/Juniper border gateways
• BGP/OSPF, ASNs, IP transit and peering
• Linux command-line networking, bridge/bond/VLAN/routing configuration
• Tools: iperf, ETHTool, nvidia-smi, perfquery, Mellanox/NVIDIA diagnostics
• Monitoring, incident detection and root-cause analysis

What we offer

• Work on Europe's first industrial AI cloud with NVIDIA and Deutsche Telekom experts.
• Hybrid working model, training opportunities and career progression.