Senior Network Engineer – AI GPU Infra (400G, Remote)

Hamilton Barnes; San Francisco (CA); Remote; USD 191,000 - 259,000; Full time

Benefits offered by this job

Stock options

Remote working options and allowance

Job summary

Hamilton Barnes is seeking a Senior Network Engineer to design, deploy, and operate ultra-low-latency, high-throughput networks for large GPU clusters. You will work with NVIDIA Spectrum and Cumulus Linux to build scalable 400G data center environments optimized for AI and HPC traffic.

The role requires deep data center networking expertise, strong Linux skills, and hands-on experience with automation (Python, Ansible, Terraform). This position offers remote options and a competitive base salary.

Qualifications

• Deep experience in network engineering within data center, HPC, cloud, or large-scale infrastructure environments.
• Strong hands-on experience with NVIDIA Spectrum switching platforms and Cumulus Linux.
• Experience designing and operating 100G/400G Ethernet fabrics.
• Deep understanding of modern data center networking protocols (BGP, EVPN, VXLAN, MLAG, ECMP).
• Strong Linux systems knowledge and network automation skills.
• Experience with automation tools and scripting (Python, Ansible, Bash, Terraform preferred).
• Familiarity with AI/HPC traffic patterns and GPU cluster networking requirements.
• Strong troubleshooting and performance optimization capabilities in high-throughput environments.

Responsibilities

• Design, deploy, and operate large-scale 400G network fabrics supporting AI and HPC workloads
• Build and maintain high-performance data center networking environments using NVIDIA Spectrum switches and Cumulus Linux
• Optimize network performance, latency, throughput, and resilience across GPU clusters
• Troubleshoot complex Layer 2/Layer 3 networking issues in distributed HPC environments
• Automate network provisioning, configuration management, and operational workflows
• Collaborate with infrastructure, platform, and ML engineering teams to ensure efficient GPU cluster communication
• Support network observability, telemetry, and capacity planning initiatives
• Contribute to network architecture strategy and scalability planning for future deployments

Skills

Data center networking

NVIDIA Spectrum

Cumulus Linux

BGP EVPN VXLAN

Linux systems

Network automation

Tools

Python

Ansible

Terraform

Bash

Job description

Hamilton Barnes is seeking a Senior Network Engineer to design, deploy, and operate ultra-low-latency, high-throughput networks for large GPU clusters. You will work with NVIDIA Spectrum and Cumulus Linux to build scalable 400G data center environments optimized for AI and HPC traffic.

The role requires deep data center networking expertise, strong Linux skills, and hands-on experience with automation (Python, Ansible, Terraform). This position offers remote options and a competitive base salary.