Principal Front-End Network Engineer

Nscale is a London-based, full-stack AI cloud and infrastructure company that provides GPU compute, managed AI services, orchestration software, data centers, and power infrastructure for AI training, fine-tuning, and inference.

London, United Kingdom
About Nscale

Nscale builds and operates vertically integrated AI infrastructure spanning software, GPU compute, networking, storage, purpose-built data centers, and power. Its active cloud platform offers self-service inference endpoints, fine-tuning, managed Kubernetes and Slurm, virtual machines, and GPU clusters.

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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 set technical direction for front-end network operations and architecture. You will design and evolve Ethernet fabric architectures, lead complex incidents, define platform standards, improve reliability and observability, and influence end-to-end infrastructure design. You will also mentor senior and principal engineers and drive improvements in uptime, latency, capacity efficiency, and incident reduction.

Requirements

  • 12+ years of network-engineering experience focused on hyperscale data-centre, cloud, or AI infrastructure networking
  • Expert experience with large-scale Ethernet data-centre fabrics and leaf-spine or Clos topologies
  • Production experience with Nvidia Cumulus, Arista EOS or Etherlink, or Nokia platforms
  • Knowledge of BGP, OSPF, ECMP, and EVPN-VXLAN
  • Experience with long-haul circuits, DCI, and optical transport
  • Experience with storage networking over Ethernet
  • Ability to debug cross-layer hardware, optics, routing, and application issues
  • Experience leading complex technical initiatives across teams

Responsibilities

  • Own technical direction and operational strategy for front-end AI infrastructure networks
  • Design, review, and evolve Ethernet leaf-spine and Clos fabric architectures
  • Lead complex front-end network incident investigations and systemic fixes
  • Drive initiatives that improve reliability, performance predictability, observability, and operational maturity
  • Define standards for hardware configuration, routing, congestion management, firmware lifecycle management, automation, and change safety
  • Influence end-to-end system design, including long-haul, DCI, and storage-network integration
  • Mentor senior and principal network engineers
  • Improve uptime, latency consistency, capacity efficiency, and incident reduction

Benefits

  • Equity
Principal Front-End Network Engineer at Nscale | JobStash