# Senior Network Engineer - InfiniBand / UFM at Lightning AI

- Company: Lightning AI
- What the company does: From the PyTorch Lightning creators. Own your AI, don. Backed by Index.
- Company website: https://lightning.ai/
- Type: Startups (AI role)
- Level: Senior
- Location: New York, New York, United States; Remote; San Francisco, California, United States; Seattle, Washington, United States
- Work setup: Remote
- Posted: 2026-07-20
- Apply by: 2026-10-08
- Apply: https://job-boards.greenhouse.io/lightningai/jobs/7808441003
- Page: https://www.1752.vc/careers/jobs/lightning-ai-senior-network-engineer-infiniband-ufm/

## About the role

We are seeking an experienced Senior Network Engineer (InfiniBand / UFM) to design, deploy, automate, and operate next-generation AI Factory networking infrastructure supporting large-scale GPU clusters. This role is responsible for building and maintaining high-performance NVIDIA Quantum InfiniBand fabrics that power AI training and inference environments utilizing NVIDIA UFM, NCCL, RoCEv2, and modern data center technologies.

## What they're looking for

- 7+ years of experience in large-scale data center networking
- Experience deploying, operating, and troubleshooting InfiniBand environments
- Strong understanding of Layer 2 and Layer 3 networking, including BGP, EVPN, VXLAN, and spine-leaf architectures
- Strong Linux administration experience
- Experience with network automation using Python, Ansible, Terraform, or similar tools
- Experience with network troubleshooting, observability, and telemetry tooling

Tags: Network Engineering