Senior HPC Network Engineer — RDMA & GPU Clusters

Wwshemi; Greater London; Hybrid; GBP 85,000 - 130,000; Full time

Benefits offered by this job

Fully expensed tech to match your need

Biannual bonus scheme

Private health insurance

Competitive salary with equity

Breakfast and dinner allowance for the

Job summary

Fuse is an AI-first energy company seeking a senior network engineer to design, deploy and operate a high-performance multi-tenant fabric. You will own RDMA-enabled networks, manage leaf-spine data center fabrics and enforce tenant isolation while automating provisioning and validation.

The role requires deep Linux expertise and strong routing/telemetry skills. You will work on global scale, implementing underlay and overlay designs, and contribute to the reliability and performance of

Qualifications

• 5+ years as a network engineer operating production data centre networks.
• Strong dynamic routing experience with BGP and overlay design.
• Hands-on leaf-spine / Clos fabric design and operation.
• Experience with modern data centre OS and Linux networking.
• Practical RDMA fabric experience for GPU workloads.
• Network automation: scripting, configuration management, version control.
• Solid Linux administration fundamentals and debugging.
• Experience with telemetry/monitoring: Prometheus and Grafana.

Responsibilities

• Design and operate lossless, RDMA-capable fabrics for GPU compute and storage traffic.
• Build and manage leaf-spine data centre fabrics with underlay/overlay design.
• Implement and maintain per-tenant network isolation across compute, storage and management planes.
• Automate network provisioning and validation, treat switch config as code via CI.
• Develop telemetry and observability dashboards to catch congestion early.
• Troubleshoot performance end-to-end from optics to NIC/DPU configuration.

Skills

RDMA fabric design

Leaf-spine / Clos

BGP EVPN/VXLAN

Linux networking

Network automation

Python scripting

Telemetry/monitoring

Tools

Ansible

NetBox

Prometheus

Grafana

RDMA capable hardware

Job description

Fuse is an AI-first energy company seeking a senior network engineer to design, deploy and operate a high-performance multi-tenant fabric. You will own RDMA-enabled networks, manage leaf-spine data center fabrics and enforce tenant isolation while automating provisioning and validation.

The role requires deep Linux expertise and strong routing/telemetry skills. You will work on global scale, implementing underlay and overlay designs, and contribute to the reliability and performance of