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Senior Network Engineer
Lightning AISenior Network Engineer designing and deploying scalable spine/leaf architectures for AI data centers. Collaborating with teams to deliver integrated infrastructure solutions with a focus on automation and observability.
Tech Stack
Tools & technologiesAnsiblePythonTerraform
About the role
Key responsibilities & impact- 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
Requirements
What you’ll need- 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
Benefits
Comp & perks- Comprehensive medical, dental and vision coverage (U.S.); Private medical and dental insurance (U.K.)
- Retirement and financial wellness support (U.S.); Pension contribution (U.K.)
- Generous paid time off, plus holidays
- Paid parental leave
- Professional development support
- Wellness and work-from-home stipends
- Flexible work environment
ATS Keywords
✓ Tailor your resumeApplicant Tracking System Keywords
Tip: use these terms in your resume and cover letter to boost ATS matches.
Hard Skills & Tools
spine/leaf network architectureshigh-performance Ethernet fabricsEVPNVXLANBGPRoCERDMAInfrastructure-as-Codenetwork provisioningautomation
Soft Skills
collaborationtroubleshootingdocumentationcommunication