Principal Network Engineer

Posted 2 Days Ago
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Milpitas, CA, USA
Hybrid
Expert/Leader
Artificial Intelligence • Semiconductor
Joining Graphcore gives you a seat at the top-table, shaping the future of Artificial Intelligence.
The Role
The Principal Network Engineer oversees network fabric maintenance for AI datacenters, collaborates on high-speed network design, and troubleshoots complex routing protocols.
Summary Generated by Built In

Graphcore is a globally recognized leader in Artificial Intelligence computing systems. The company designs advanced semiconductors and data centre hardware that provide the specialized processing power needed to drive AI innovation, while delivering the efficiency required to support its broader adoption.   

As part of the SoftBank Group, Graphcore is a member of an elite family of companies responsible for some of the world’s most transformative technologies. We are opening a new AI Engineering Campus in Austin, which will play a central role in Graphcore's work building the future of AI computing. 

RESPONSIBILITIES
  • Responsible for the maintaining all the network fabrics and network topologies operating at peak performance on Graphcore Data centers housing AI server platforms.
  • Collaborate closely with our Network architecture team through all phases of the design and development lifecycle — from concept to deployment — ensuring timely, high-quality, and stable high-speed network fabrics.
  • Primary support of deployed internal fabrics in our AI Datacenters.
  • Direct escalation for Hardware, Link and, Performance issues on network fabrics.
  • Escalation support for customer network fabrics (aligned to reference arch.)
  • Triage day-to-day network topologies (scale-up, scale-out, and front-end networks) issues of Fabrics deployed in Graphcore Datacenters.

REQUIREMENTS
  • Bachelor’s, master’s degree or equivalent experience in Network Engineering/Security, Information Technology, Computer Science, Computer engineering, or a related field.
  • 9+ years of hands-on experience in network engineering and 3+ years supporting networking on AI or Hyperscale Datacenters.
  • Knowledge of Remote Direct Memory Access (RDMA) and its implementations, specifically ROCEv2 or InfiniBand
  • Knowledge of Lossless network – Experience with congestion control and lossless Ethernet technologies including PDF, ECN and DCQCN.
  • Versed in High-Bandwidth network infrastructure including experience with operating 400G and 800G network fabrics and tackling challenges at the physical layer for networks operating at these speeds. This includes familiarity with specific optical transceivers.
  • Experience sustaining non-blocking, multi-tier CLOS networks (i.e., Spine / Leaf / Super-Spine) that are optimized for high-density GPU clusters.
  • Extensive troubleshooting experience for data center routing protocols such as BGP and OSPF as well as troubleshooting of VXLAN implementations.
  • Cross-Functional collaboration- The candidate must excel at working closely with network architects, systems hardware engineers, AI software engineers, and Datacenter infrastructure teams to optimize the full stack from the application layer down to the Network infrastructure that includes controllers (NICs, SmartNICs, DPUs), network switches, and cabling and optical transceiver operation in our Datacenter.

DIFFERENTIATORS
  • Deep hands-on experience with NetDevOps to automate tasks using tools such as Terraform or Ansible to manage network configurations and state.
  • Possess strong scripting skills such as Python, Go, or JSON to build custom automation, interact with APIs, and develop internal network tools.
  • Deep hands-on experience with modern, high-performance hardware from network switch and NIC providers such as Broadcom, Arista, Cisco, or Pensando.
  • Knowledgeable in Advanced Network Telemetry, beyond traditional SNMP. Knowledgeable in telemetry protocols such as gNMI, Sflow, Netflow, Redfish, and Prometheus to characterize and detect transient congestion events, micro-bursts in the network fabric or defective network hardware.

We welcome people of different backgrounds and experiences and are committed to building an inclusive work environment that makes Graphcore a great home for everyone. We are an equal opportunity employer and want to build a work environment where everyone is happy, productive and respectful so they can do their best work. If you have a disability or additional need that requires accommodation, just let us know.

pproach to interview and encourage you to chat to us if you require any reasonable adjustments. 

Skills Required

  • Bachelor's or master's degree or equivalent experience in Network Engineering/Security, IT, Computer Science, or related field
  • 9+ years of hands-on experience in network engineering
  • 3+ years supporting networking on AI or Hyperscale Datacenters
  • Knowledge of RDMA and its implementations
  • Experience with lossless network technologies
  • Experience with 400G and 800G network fabrics
  • Extensive troubleshooting experience with BGP and OSPF

What the Team is Saying

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Graphcore Compensation & Benefits Highlights

  • Healthcare Strength U.S. offerings include day-one medical through Cigna/Kaiser with PPO and HDHP options plus employer HSA contributions, dental/vision, life insurance at 3x salary, disability, and mental-health support via Spring Health. Globally, private medical insurance, dental cover, a health cash plan, life assurance, income protection, and wellbeing support are highlighted.
  • Retirement Support U.S. employees are offered a 401(k) with a 100% company match up to 6% with a year-end true-up. In the UK/Europe, matched pension schemes up to 5% are stated.
  • Leave & Time Off Breadth Policies include flexible or “unlimited” PTO with 11 paid U.S. holidays and paid family leave. Careers materials also emphasize generous parental leave and flexible hours.

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The Company
HQ: Bristol
762 Employees
Year Founded: 2016

What We Do

At Graphcore, we’re building the future of AI compute. We’re a team of semiconductor, software and AI experts, with deep experience in creating the complete AI compute stack - from silicon and software to infrastructure at datacenter scale. As part of the SoftBank Group, backed by significant long-term investment, we are delivering key technology into the fast-growing SoftBank AI ecosystem. To meet the vast and exciting AI opportunity, Graphcore is expanding its teams around the world. We are bringing together the brightest minds to solve the toughest problems, in a place where everyone has the opportunity to make an impact on the company, our products and the future of artificial intelligence.

Why Work With Us

Our team is at the forefront of the machine intelligence revolution, enabling innovators from all industries to build AI-native products to expand human potential. What we do at Graphcore really makes a difference.

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Graphcore Offices

Hybrid Workspace

Employees engage in a combination of remote and on-site work.

At Graphcore, we value wellbeing and flexibility to support a healthy work/life balance. Our hybrid approach encourages office-based colleagues to work onsite three days a week, with trusted flexibility built on trust and transparency for everyone.

Typical time on-site: 3 days a week
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