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Senior Network Engineer (Edge/Backbone/Optical)

lightning ai • United States
Full Remote
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Senior Network Engineer role focused on managing Juniper PTX routers and Smartoptics DWDM systems for Lightning AI’s global AI infrastructure. Responsibilities include operating production networks, handling IPv4/IPv6/BGP, troubleshooting optical/routing failures, automating provisioning, and ensuring resilient connectivity. Requires 5+ years in edge/backbone/networking with hands-on Juniper and DWDM experience.

Key Highlights
Hands-on role managing Juniper PTX routers and Smartoptics DWDM systems
Responsible for IP routing, optical transport, and network reliability across global AI infrastructure
Automation of provisioning, configuration, and operational checks using Python/Ansible
Key Responsibilities
Operate and expand Juniper PTX routers and Smartoptics DWDM systems
Manage internet transit, peering, and external connectivity using IPv4/IPv6/BGP
Troubleshoot failures across packet and optical layers
Plan resilient network paths and capacity
Coordinate circuit delivery and fault resolution with external vendors
Automate provisioning and operational checks using Python/Ansible
Improve telemetry and alerting for network health
Execute maintenance and participate in incident response
Technical Skills Required
Juniper PTX routers and Junos OS DWDM optical transport systems IPv4/IPv6 and BGP routing
Benefits & Perks
Discretionary bonus
Equity component (RSUs)
Comprehensive health coverage (medical/dental/vision)
Unlimited PTO and paid parental/family leave
Annual learning and development allowance
Wellness and work-from-home stipends
Sabbatical program (4 weeks after 4 years)
Flexible work (hybrid or fully remote within the U.S.)

Job Description

Lightning AI is seeking a Senior Network Engineer to own the operation, reliability, and growth of our edge network and optical transport infrastructure.

You will manage Juniper PTX routers and Smartoptics M32 and M40 line systems, connecting our data centers, internet providers, peering partners, and external networks. This is a hands-on engineering role spanning IP routing and the optical layer that carries it.

What You Will Do:

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