Industrial AI Cloud - Network Engineer

Stack

Responsibilities

• ▹Coordinate and support network lifecycle activities (installs, upgrades, changes, firmware updates) together with Data Center, IaaS & PaaS layers, and manage network interconnections and related documentation
• ▹Provision and maintain InfiniBand switches according to ITIL standards
• ▹Develop and maintain automation scripts to orchestrate the overall scope, with fine-tuning and configuration changes throughout the project lifetime
• ▹Maintain network-based environments, apply patches, and manage firmware upgrades at scale
• ▹Operate and enhance monitoring & observability solutions
• ▹Follow and improve incident, problem, and change management ITIL workflows; document runbooks and standard operating procedures; adhere to ZERO Outage guidelines
• ▹Work closely with Platform Engineers and AI solution teams to ensure smooth deployments and operations
• ▹Manage the high-speed network fabric combining InfiniBand and Ethernet/RoCE technologies
• ▹Operate the separate 1 Gbps Ethernet and serial-console management network for out-of-band access
• ▹Manage PE/CE datacenter connectivity (CE routers, firewalls)

Requirements

• ▹Experience in network installation, maintenance, and operations
• ▹Deep understanding of InfiniBand architecture, RDMA over Converged Ethernet (RoCE), and low-latency, high-throughput networking for AI/HPC workloads
• ▹Experience with NVIDIA/Mellanox switch configuration and UFM (Unified Fabric Manager) management
• ▹Data center routing & Border Gateway Protocol knowledge: Cisco or Juniper routers (e.g., CR-8608, PTX 10004), BGP/OSPF routing, ASNs, IP Transit, peering, and failover connectivity
• ▹Linux networking (Cumulus OS / Ubuntu / Debian), command-line networking skills on Linux-based systems, especially Cumulus Linux; configuring bridges, bonds, VLANs, and routing tables
• ▹Experience with tools such as iperf, ethtool, nvidia-smi for network devices, perfquery, and Mellanox/NVIDIA diagnostics
• ▹Skilled in continuous monitoring, incident detection, and root-cause analysis for large-scale data center networks
• ▹Familiarity with NOC/SOC operational procedures and on-call rotation models
• ▹Firewall and security management: proficient in FortiGate firewall administration (policies, NAT, VPNs, IDS/IPS, HA configuration), security segmentation, DDoS mitigation, and zero-trust networking
• ▹Configuration and lifecycle management: switch provisioning, firmware/OS upgrades, patch management, and configuration backups
• ▹Working knowledge of ITIL processes (incident, problem, change)

What we offer

• ▹Work on Europe's first industrial AI cloud with cutting-edge technologies
• ▹Direct collaboration with NVIDIA and Deutsche Telekom experts
• ▹Hybrid working model, training opportunities, and career progression

About the company

Deutsche Telekom IT Solutions is a subsidiary of the Deutsche Telekom Group, delivering a broad portfolio of IT and telecommunications services with more than 5,300 employees to large corporate clients in Germany and across Europe. Ranked among Hungary's most attractive employers in 2025 (Randstad survey), the company keeps growing its sites in Budapest, Debrecen, Pécs and Szeged. NVIDIA and Deutsche Telekom are jointly developing the world's first industrial AI cloud for European manufacturers. This AI factory in Germany will host 10,000 GPUs across NVIDIA DGX B200 systems and RTX Pro Servers, with Deutsche Telekom providing secure, sovereign and fast infrastructure, including data centers, operations, security, and AI solutions.