Senior Network Engineer, Backbone

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Core Weave is The Essential Cloud for AI™. Built for pioneers by pioneers, Core Weave delivers a platform of technology, tools, and teams that enables innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and global enterprises, Core Weave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, Core Weave became a publicly traded company (Nasdaq: CRWV) in March 2025.

We are seeking a Senior Network Engineer to join our Backbone & Edge team. In this role, you will be responsible for day‑to‑day operations of our backbone network, troubleshooting, deploying, automating and monitoring every part of the backbone while working closely with other networking groups to ensure seamless operations of the entire stack.

• Operate, monitor, and support the backbone and edge network on a day‑to‑day basis, ensuring stability, performance, and uptime.
• Troubleshoot routing, optical, and transport issues across multi‑vendor environments, driving resolution of incidents quickly and effectively.
• Perform configuration changes, maintenance, and upgrades on backbone and edge routers, switches, and optical platforms.
• Automate common operational workflows (e.g., config deployment, monitoring, fault remediation) to increase efficiency and reduce manual work.
• Proactively monitor network health, capacity, and performance, escalating and addressing issues before they impact customers.
• Maintain accurate documentation of procedures, standards, and post‑mortems to improve operational consistency and knowledge sharing.
• Collaborate closely with datacenter, edge, and peering teams to ensure smooth handoffs and end‑to‑end network reliability.
• Participate in on‑call rotation, providing escalation support for critical backbone incidents.

• Proven experience (typically 5+ years) in network engineering or operations for large‑scale telecommunications or cloud/content networks.
• Demonstrated experience operating large‑scale backbone networks running protocols such as SR‑MPLS, ISIS, and BGP.
• Ability to troubleshoot complex routing issues quickly and efficiently.
• Solid understanding of network architecture principles, including redundancy, diversity, and resilience.
• Experience with Nokia SROS, Juniper Junos and other common NOS.
• Strong analytical and problem‑solving skills, with the ability to interpret complex technical information and make data‑driven decisions.
• Excellent communication and interpersonal skills, with the ability to effectively collaborate with technical and non‑technical stakeholders.
• Ability to create tooling with Python or Ansible to help with day‑to‑day operations.

• Bachelor's degree in Electrical Engineering, Telecommunications, Computer Science, or a related field (equivalent practical experience will also be considered).

• Experience with specific vendor equipment (e.g., Nokia, Juniper, Ciena, NVIDIA).
• Knowledge of IP routing and switching principles.
• Knowledge of optical networking.
• Familiarity with Python, Ansible, Net Box, and other common tools used for network automation.

The base salary range for this role is $139,000 to $204,000. Compensation will be based on job‑related knowledge, skills, experience, and market location. In addition to base salary, we offer a discretionary bonus, equity awards, and a comprehensive benefits program.

• Medical, dental, and vision insurance – 100% paid for by Core Weave
• Company‑paid Life Insurance
• Voluntary supplemental life insurance
• Short‑ and long‑term disability insurance
• Flexible Spending Account
• Health Savings Account
• Tuition Reimbursement Employee Stock Purchase Program (ESPP)
• Mental Wellness benefits through Spring Health
• Family‑forming support provided by Carrot
• Paid Parental Leave
• Flexible, full‑service childcare support with Kinside
• 401(k) with a generous employer match
• Flexible PTO
• Catered lunch every day in our office and data center locations
• A casual work environment
• A work culture focused…