Fabric Data Engineer Jobs in Sumter, SC (NOW HIRING)

Senior Network Engineer - AI Data Center Networks
Location: Portland OR, Sumter SC or SF Bay Area CA or remote
Job Type: Full Time, Hourly, Non-Exempt
Travel Requirement: Up to 75%
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At BNS Networks, we design, deploy, and operate the network infrastructure behind large-scale AI compute. Our team provides complete lifecycle support - from high-level design and structured cabling to fabric bring-up, commissioning, and managed operations - keeping our customers' networks performing at line rate when it matters most.
BNS offers a competitive and relevant benefits package that keeps our employees in mind. Our benefits package includes medical, dental, and vision coverage, 401(k), and paid time off (PTO).
POSITION OVERVIEW
We are growing and looking for a Senior Network Engineer to join our engineering team. In this role, you will own the design and engineering of multi-site WAN backbones and high-density GPU compute fabrics for AI data center operators - taking projects from concept and high-level design through detailed design, build, and validation.
This position offers the opportunity to work closely with engineering, deployment, and customer teams while contributing to complex AI infrastructure projects from design through delivery and into operations. This is a fully remote role and can be based anywhere, with the ability to travel to active data center sites as needed.
WHAT YOU'LL DO

• Design multi-site network backbones - BGP routing, transit and peering, internet edge, and data center interconnect (DCI) - and document them as defensible high- and low-level designs
• Engineer high-density GPU compute fabrics (leaf-spine, rail-optimized fat-tree) using InfiniBand (NDR/XDR) and RoCEv2 / Spectrum-X Ethernet
• Develop port-to-port cable maps and fabric plane architectures (single, dual, and quad plane) for NVL72-class GPU clusters, preserving NCCL collective performance
• Plan and execute staged fabric bring-up - Subnet Manager / UFM configuration, firmware and pkey alignment, and controlled port enablement to avoid trap storms and reconvergence events
• Produce HLD and LLD documentation, IP and ASN schemes, and cable schedules, and drive them through an issued-for-construction freeze and commissioning process
• Apply NetDevOps practices - source-of-truth databases, infrastructure-as-code, and automated validation - to the logical fabric
• Coordinate carrier and transport (transit, wavelengths, point-to-point links) and capacity planning across sites
• Support network operations and managed services - monitoring, change control, root-cause analysis, and preventive maintenance - through deployment and hypercare

WHAT WE'RE LOOKING FOR

• 10+ years of experience in network engineering, data center fabric design, or large-scale WAN/backbone design
• Deep command of BGP (eBGP/iBGP, multi-homing, transit and peering) and enterprise or service-provider routing and switching
• Hands-on experience designing and deploying leaf-spine data center fabrics
• Working knowledge of InfiniBand and/or RoCE GPU back-end networks - fat-tree topology, rails, and collective traffic patterns
• Ability to produce HLD/LLD documentation and structured cable schedules to a build-ready standard
• Strong problem-solving and technical communication skills, and the ability to collaborate across engineering, deployment, and customer teams
• Willingness to travel to customer and project sites (estimated 25-40%)

EXPERIENCE IN THE FOLLOWING AREAS IS A PLUS

• NVIDIA reference architectures - GB200 / GB300 NVL72, ConnectX-7/8, Quantum InfiniBand, Spectrum-X, and DGX/HGX SuperPOD designs
• Subnet Manager / UFM operations and InfiniBand fabric troubleshooting (trap storms, LFTs, GUID/pkey)
• High-speed optics and structured cabling - OSFP / QSFP-DD, MPO/MTP trunking, single-mode (APC) fiber
• NetDevOps tooling - automation, infrastructure-as-code, and source-of-truth / IPAM systems
• Network certifications such as CCNP / CCIE, JNCIP, or NVIDIA networking credentials
• Experience with NOC operations, managed services, or hypercare for production data centers

WHY JOIN BNS NETWORKS?
At BNS Networks, you'll work alongside a team that values technical depth, collaboration, and execution. Our engineers play a direct role in building and operating the networks behind the AI buildout - backbone, fabric, and everything in between.
If you are passionate about AI infrastructure and solving complex network engineering challenges, we encourage you to apply.
BNS is an Equal Opportunity Employer (EEO).