Senior Technical Support Engineer, Network
NVIDIA · Germany
Computer Hardware Manufacturing · 10,001+ employees
About the role
Provide Tier 3 technical support for InfiniBand and Ethernet fabrics in large-scale AI, HPC, and storage environments. Manage complex fabric installations, troubleshoot end-to-end networking issues, and collaborate with engineering teams to resolve customer problems.
What they look for
Requirements
Requires a Bachelor's degree in a technical field and at least 5 years of experience in customer support for hardware and software products. Candidates must possess deep expertise in networking protocols, Linux administration, and automation tools like Ansible.
Full 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 center, 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-center 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? Apply today!
