Senior Principal Network Engineer

Graphcore is a SoftBank-owned AI-compute company developing AI processors, systems, and software for machine-learning workloads.

Bristol, United Kingdom
About Graphcore

Graphcore develops Intelligence Processing Units (IPUs) and the Poplar SDK for building and running machine-learning applications. It continues operating under the Graphcore name as a wholly owned SoftBank Group subsidiary.

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Skills

Candidate Availability

Required and preferred rules are kept separate and reflect the wording in the original posting.

About the Role

You will design, deploy, and optimize AI data-center network fabrics for GPU clusters. You will improve lossless Ethernet and RDMA performance, lead network automation and remediation, build telemetry pipelines, support fabric deployment and monitoring, mentor engineers, and evaluate new high-speed networking technologies.

Requirements

  • 12+ years of progressive network engineering experience
  • At least 3 years in hyperscale, high-density, or HPC data-center environments
  • Expert knowledge of BGP, OSPF, and EVPN-VXLAN architectures
  • Understanding of RDMA networking technologies such as RoCEv2 or InfiniBand
  • Experience with Arista EOS, Cisco NX-OS, or SONiC
  • Experience with 400G or 800G optics and large-scale fabric architectures
  • Python, Go, Bash, or similar automation and scripting proficiency

Responsibilities

  • Define high-bandwidth non-blocking AI network fabrics
  • Optimize lossless Ethernet fabrics for RDMA and RoCEv2 communication
  • Lead NetDevOps automation for provisioning, configuration management, and remediation
  • Design and deploy telemetry pipelines for network health and congestion analysis
  • Support deployment, configuration, and monitoring of data-center network fabrics
  • Collaborate with hardware, AI research, and data-center operations teams
  • Provide technical leadership and mentorship to network engineers
  • Contribute to networking strategy and roadmap
  • Evaluate next-generation networking technologies and vendor solutions

Benefits

  • Flexible working
  • Medical coverage
  • Dental coverage
  • Vision coverage
  • Flexible Spending Accounts
  • Health Savings Accounts
  • Disability insurance
  • Life insurance
  • 401(k) retirement plan
  • Commuter benefits
  • Wellness services
  • Employee Assistance Programme
Senior Principal Network Engineer at Graphcore | JobStash