# Senior Network Engineer

**Company:** [Lightning AI](https://hotfix.jobs/companies/lightning-ai)
**Location:** Remote
**Role:** DevOps / SRE
**Salary:** $150k – $190k/yr
**Experience:** 5+ years
**Skills:** Cumulus Nos, Sonic, Junos, BGP, Evpn, Vxlan, Python, Ansible, Terraform, Roce, Rdma, Nvidia Spectrum, Nvidia Quantum, Nvidia Bluefield, InfiniBand
**Posted:** 2026-06-04

> Design and operate large-scale AI data center networks using spine-leaf architectures, EVPN/VXLAN, BGP, and automation tools. Requires 5+ years of data center networking experience and hands-on work with Cumulus NOS, SONiC, and Junos.

## Job Description

## What You'll Do
- Design and deploy scalable spine/leaf network architectures for AI data centers
- Engineer high-performance Ethernet fabrics supporting GPU clusters and AI workloads
- Build and maintain EVPN/VXLAN, BGP, and high-speed routing environments
- Optimize east-west traffic flows for AI training and inference operations
- Support RoCE/RDMA networking and low-latency transport technologies
- Support backbone, DCI, WAN, and edge connectivity solutions
- Collaborate with compute, storage, AI platform, and operations teams to deliver integrated infrastructure solutions
- Develop automation and Infrastructure-as-Code (IaC) solutions for network provisioning and operations
- Troubleshoot complex network, performance, and congestion issues across distributed environments
- Improve network observability, telemetry, and operational visibility

## What You'll Need
### Required Qualifications
- Experience with Cumulus NOS
- 5+ years of experience in large-scale data center networking
- Experience in spine-leaf architectures and L3 fabrics
- Experience with BGP, EVPN, VXLAN
- Experience operating high-performance computing (HPC) or GPU-dense environments
- Experience designing networks for hyperscalers, neoclouds, or high-scale SaaS infrastructure
- Experience in automation with (Python, Ansible, Terraform, or similar)
- Experience with network observability tooling and telemetry pipelines
- Proven ability to design systems that scale to thousands of nodes
- Strong documentation and communication skills

### Ideal Experience
- Familiarity with NVIDIA networking (Spectrum, Quantum, BlueField, etc.)
- Familiarity with RDMA, RoCE, or InfiniBand fabrics
- Experience with multi-region backbone design
- Exposure to bare-metal provisioning systems
- Experience working in high-growth infrastructure startups

## Benefits and Perks
- Comprehensive medical, dental and vision coverage (U.S.)
- Retirement and financial wellness support (U.S.)
- Generous paid time off, plus holidays
- Paid parental leave
- Professional development support
- Wellness and work-from-home stipends
- Flexible work environment

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