Senior Cloud Fabric Architect - AI/HPC Networking

NVIDIA Corporation; Reading; On-site; GBP 120,000 - 180,000; Full time

Job summary

NVIDIA Corporation is seeking a Senior Network and Fabric Operations Solutions Architect to join its Infrastructure Specialist Team in Reading, UK. You will own Day 2 fabric operations, manage NVLink/NVSwitch partitions on NVL72-class systems, and lead upgrade campaigns for Cumulus Linux and SONiC while keeping production workloads running.

You will engage with customers and partners, validate InfiniBand/UFM handover, coordinate with cross‑functional teams, and deliver runbooks for scalable,

Qualifications

• BS/MS/PhD in Computer Science, Electrical/Computer Engineering, Physics, Mathematics, or related fields, or equivalent experience.
• 5+ years of professional experience in data centre networking, fabric engineering or large-scale network operations roles.
• Deep understanding of data centre network architectures and RDMA fabrics—InfiniBand and RoCE/Ethernet—including topology and routing design and troubleshooting across NICs, switches and high-speed interconnects.
• Hands-on experience with InfiniBand and UFM, Spectrum-X Ethernet, Cumulus Linux and/or SONiC, ConnectX and BlueField NICs/DPUs, and NVLink/NVSwitch systems—ideally including NMX-C / NMX-M partition operations on NVL72-class platforms.
• Deep knowledge of Linux (RedHat, Ubuntu) and switch operating systems, network OS internals, host networking and OS-level security.
• Proficiency in Python and Bash scripting, configuration management and IaC tools (Ansible, Terraform), GitOps-based configuration and firmware/upgrade management, and observability stacks (Grafana, Loki, Prometheus).
• Demonstrated ability to measure and improve MTBI and job goodput on large GPU clusters with a strong consultative background.

Responsibilities

• Own Day 2 fabric operations across NCP fleets: NVLink/NVSwitch partition management on NVL72-class systems and safe partition-change workflows for multi-tenant estates.
• Own the switch software and firmware lifecycle—Cumulus Linux, SONiC and switch-OS upgrades, CPLD and field-notice rollout campaigns.
• Support Day 1 fabric validation and acceptance: InfiniBand and UFM bring-up, Spectrum-X/RoCE Ethernet configuration, cabling and link-health verification, routing and congestion-control validation.
• Minimise time from cluster handover to first production workload, reducing duplicated validation across hardware bring-up and partner teams.
• Drive fabric reliability at fleet scale: telemetry for link flaps, retransmits and congestion, root cause analysis and remediation, MTBI improvement.
• Provide consultative guidance and hands-on troubleshooting across fabric stack and runbooks for partner teams.

Skills

Data centre networking

RDMA fabrics

InfiniBand

RoCE/Ethernet

NVLink/NVSwitch

Linux systems

Python scripting

GitOps

Observability tooling

Education

BS/MS/PhD in CS/EE/Physics/Math

Tools

Cumulus Linux

SONiC

Kubernetes

Prometheus/Grafana

UFM

Job description

NVIDIA Corporation is seeking a Senior Network and Fabric Operations Solutions Architect to join its Infrastructure Specialist Team in Reading, UK. You will own Day 2 fabric operations, manage NVLink/NVSwitch partitions on NVL72-class systems, and lead upgrade campaigns for Cumulus Linux and SONiC while keeping production workloads running.

You will engage with customers and partners, validate InfiniBand/UFM handover, coordinate with cross‑functional teams, and deliver runbooks for scalable,