Senior Technical Support Engineer, Network

NVIDIA; Germany (OH); On-site; USD 120,000 - 180,000; Full time

Job summary

NVIDIA is seeking a Senior Network Engineer to support InfiniBand and Ethernet fabrics in demanding data centre, AI, storage, and HPC environments. You will collaborate with Engineering, Marketing, and Support to resolve complex issues and deliver high customer satisfaction.

You will work on troubleshooting, design, and deployment of fabric topologies, subnet management, and RDMA/GPUDirect RDMA features while communicating clearly with customers and partners.

Qualifications

• B.Sc. in Computer Science, Software Engineering, or Electrical Engineering, or equivalent experience.
• 5+ years providing customer support for hardware & software products.
• Hands-on InfiniBand experience or deep Ethernet/RDMA expertise with ramp to InfiniBand.
• Strong LAN switching/routing knowledge (STP, MSTP, MLAG, VPC, VRRP, LACP) and IP routing (OSPF, BGP, PIM).
• Linux, scripting, and automation with Ansible.

Responsibilities

• Tier 3 support for InfiniBand and Ethernet fabrics in AI/HPC and storage clusters.
• Troubleshoot end-to-end InfiniBand fabrics (subnet management, topology, congestion control).
• Develop and present technical solutions to customer problems and manage complex fabric installations.
• Report issues, replicate problems, and coordinate resolutions.
• Respond to customer technical inquiries and provide site visits/conference calls.

Skills

Customer support

InfiniBand experience

LAN switching/routing

Linux scripting

Ansible automation

Communication skills

Issue resolution

Education

B.Sc. in CS/SE/EE

Tools

InfiniBand tools

Ansible

Networking hardware

Job description

We are looking for a Senior Network Engineer to join a dynamic, results-oriented team supporting InfiniBand and Ethernet fabrics in the most demanding data centre, AI, storage, and HPC environments. As a Technical Support Engineer, you will be an approachable, proficient communicator who takes ownership of resolving issues while ensuring a high level of customer satisfaction. You will work closely with Engineering, Marketing, and Support teams on complex technical issues.

What You Will Be Doing

• Tier 3 support for InfiniBand and Ethernet fabrics: installing, supporting, and resolving complex technical issues in large AI/HPC and storage clusters
• Troubleshooting end-to-end InfiniBand fabrics – subnet management (UFM / OpenSM), routing topology and congestion control.
• Developing and presenting comprehensive technical solutions to customer problems, including project management of complex fabric installations
• Problem reporting, issue replication, and resolution management
• Responding to customer technical inquiries
• Site visits and conference calls with customers and partners
• Developing and refining internal processes to improve support efficiency and productivity

What We Need To See

• B.Sc. in Computer Science, Software Engineering, or Electrical Engineering, or equivalent experience
• 5+ years providing customer support for hardware & software products
• Hands-on InfiniBand experience – OR deep Ethernet/RDMA expertise with a demonstrated ability and strong motivation to ramp quickly on InfiniBand (subnet manager, fabric topologies such as fat-tree, RDMA verbs, diagnostics)
• Extensive knowledge of LAN switching/routing (STP, MSTP, MLAG, VPC, VRRP, LACP) and IP routing (OSPF, BGP, PIM), plus virtualization, EVPN, VXLAN
• Linux experience and scripting
• Automation – Ansible
• Ability to work under pressure and support high-level customers
• Experience operating and configuring major vendors' switches and routers
• Analysis and diagnosis of highly complex networking problems
• Strong communication, presentation, and oral skills; excellent verbal and written English

Ways To Stand Out From The Crowd

• Deep InfiniBand expertise: UFM, OpenSM, adaptive routing, congestion control, link-layer troubleshooting, ibdiagnet/perftest, ConnectX/BlueField adapters
• RDMA, RoCE, and GPUDirect RDMA in production AI/HPC clusters
• Clustering and data centre technologies, including upper-layer protocols (e.g., MPI, NCCL)
• Knowledge of Linux/Unix at an administration level
• Ethernet (10/40/100+ GigE) and/or InfiniBand at scale

NVIDIA is widely considered one of the technology world's most desirable employers, with some of the most forward-thinking and hardworking people anywhere. If you're creative, results-oriented, and enjoy having fun - what are you waiting for?