HPC Private Cloud Network Engineer (OpenStack)

La Fosse

Greater London

On-site

GBP 70,000 - 100,000

Full time

3 days ago

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Job summary

La Fosse is seeking a Private Cloud HPC Network Engineer to design, deploy and operate a greenfield on-prem OpenStack-based private cloud in the UK. You will craft high-performance leaf-spine networks, integrate with OpenStack Neutron/OVN, and automate networking services with modern tooling.

A hands-on role spanning compute, storage and HPC workloads. The position emphasizes scalable, resilient, and highly automated infrastructure with security-focused design and cross-domain collaboration with

Qualifications

Experience designing and supporting high-performance compute environments using RoCE, RDMA or InfiniBand.
Deep understanding of BGP, Leaf-Spine architectures, Layer 2/Layer 3 networking, ECMP, EVPN, VXLAN and resilience.
Practical experience with OpenStack networking services and API-driven network automation.
Strong HPC network observability, troubleshooting and performance tuning skills.

Responsibilities

Design and evolve network architecture for large-scale OpenStack Private Cloud and HPC environments.
Develop scalable Leaf-Spine architectures using BGP, EVPN, VXLAN and ECMP.
Design high-performance networking for compute, storage and latency-sensitive workloads.
Evaluate technologies including RoCE, RDMA, SR-IOV, SmartNICs, DPUs and high-performance Ethernet.
Integrate physical network infrastructure with OpenStack networking services including Neutron, OVN and ML2.
Lead network security architecture and threat modelling.
Troubleshoot complex cross-domain issues spanning networking, compute, storage and HPC applications.