[Remote] Senior Network Engineer

Note: The job is a remote job and is open to candidates in USA. Lightning AI is seeking a Senior Network Engineer to build and scale the network backbone for its AI infrastructure platform. The role focuses on designing, deploying, automating, and operating reliable data center networks that support GPU clusters and demanding AI workloads.

Responsibilities

• 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

Skills

• 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
• 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

• Discretionary bonus
• Meaningful equity component
• Medical, dental, and vision coverage for employees and eligible dependents
• RSUs that give employees a stake in the company's long-term success
• 401(k) matching (U.S.)
• Pension contributions (U.K.)
• Unlimited PTO, company holidays, and floating holidays
• Two weeks of company closure each winter
• Paid parental and family leave
• Annual learning and development allowance
• Wellness and work-from-home stipends
• Four weeks of paid sabbatical leave after four years of service
• Flexible schedules and a hybrid work model for office-based teams
• Complimentary meals at office hubs

Company Overview

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