Senior Technical Support Engineer, Network

• 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

• 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

• 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!