Senior Technical Support Engineer, Network

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
  
  

• 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