Network Engineer

4 days ago

London, Greater London, United Kingdom Nscale Full time £80,000 - £120,000 per year

About Nscale
Nscale is the GPU cloud engineered for AI. We provide cost-effective, high-performance infrastructure for AI start-ups and large enterprise customers. Nscale enables AI-focused companies to achieve superior results by reducing the complexity of AI development. Our GPU cloud bolsters technical capabilities and directly supports strategic business outcomes, including cost management, rapid innovation, and environmental responsibility.

At Nscale, our Engineering team plays a critical role in driving the deployment and then subsequent management of our infrastructure and software platforms..

We thrive on a culture of relentless innovation, ownership, and accountability, where every team member takes pride in their work and drives it with excellence and urgency. As an Nscaler, you'll build trust through openness and transparency, where everyone is inspired to do their best work. If you join our team, you'll be contributing to building the technology that powers the future.

About The Role (Job Purpose)
The Network Engineering Team is responsible for the design, deployment, and ongoing operation of all networking services that underpin both the internal management platform and the customer-facing cloud infrastructure, this includes internet transit, WAN connectivity and DC networking. They act as a 3/4th line escalation point for the support organisation.

What You'll Be Doing (Responsibilities)

  • Designing, deploying and operating high speed Ethernet based networks
  • Designing, deploying and operating high speed Infiniband networks
  • Working with deployment teams to ensure BOMs are correct and fit for purpose
  • Providing input into DC layout and Rack elevations, to ensure our Reference Architectures are implemented correctly
  • Troubleshooting performance issues on both Ethernet and Infiniband networks
  • Automating the deployment and initial standup of multiple vendors hardware
  • Automating the day to operations of multiple vendors hardware
  • Designing, implementing and supporting our WAN infrastructure

About You (Skills / Qualifications Experience)

  • Proven experience in designing, deploying, and operating high-speed Ethernet networks, including technologies such as VLAN, LACP, MLAG, BGP, OSPF, EVPN, and VXLAN.
  • Proven experience in designing, deploying, and operating InfiniBand networking, including configuration, performance tuning, and troubleshooting (e.g., Subnet Managers, QoS, RDMA).
  • Strong knowledge of WAN technologies including MPLS,BGP,IPSec, GRE, SD-WAN, and associated routing protocols.
  • Knowledge of HPC networking topologies. Fat Tree, Rail
  • Strong Python or Bash
  • Strong Optics and hardware knowledge to assist with BOM design

Equal Opportunities Statement
At Nscale, we are committed to fostering an inclusive, diverse, and equitable workplace. We believe that a variety of perspectives enriches our work environment, and we encourage applications from candidates of all backgrounds, experiences, and abilities. We strongly encourage applications from people of colour, the LGBTQ+ community, people with disabilities, neurodivergent people, parents, carers, and people from lower socio-economic backgrounds.

If there's anything we can do to accommodate your specific situation, please let us know.

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