EU remote
Senior Network Engineer II
About this role
CoreWeave is The Essential Cloud for AI™. Built for pioneers by pioneers, CoreWeave 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, CoreWeave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability. Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025.
Learn more at www.coreweave.com . We're proud to be a Living Wage accredited Employer. What You'll Do: CoreWeave is looking for an experienced Senior Network Engineer to join our rapidly growing Data Center Network Engineering Team. This role is focused on deploying, scaling, and operating large-scale data center network infrastructure. The team is responsible for bringing new network capacity online across data centers and ensuring the network is stable, reliable, and ready to support production workloads.
About the role: Quickly adapt to a rapidly changing environment and learn new emerging networking technologies Design and deploy consistent large scale networks rapidly, leveraging automation Plan, deploy, operate, and scale multi-tier data center network fabrics (Clos / spine-leaf) across multiple data centers Drive end-to-end network deployments, including: Rack layout planning Cabling and optics validation Configuration generation and deployment Post-deployment validation and testing Work closely with data center technicians (DCTs) to execute builds (rack, cable, power, optics) Validate network readiness before handing off to production traffic Troubleshoot complex issues across: Control plane (BGP, routing policies) Data plane (ECMP, packet loss, latency) Physical layer (interfaces, optics, cabling) Perform network changes and deployments with a strong focus on: Blast radius awareness Rollback planning Operational safety Participate in peer reviews, design discussions, and architectural decisions Contribute to documentation, runbooks, and deployment procedures Partner with internal teams (automation, DC ops, engineering) to improve deployment workflows Share your knowledge and guide junior team members, fostering a culture of continuous learning and improvement Who You Are: 7+ years of experience in network engineering Experience managing data center network fabrics (Clos / spine-leaf) Deep understanding of: BGP (required) EVPN / VXLAN (preferred) Routing and switching fundamentals Experience deploying or operating large-scale network infrastructure Working knowledge of automation and scripting (Python preferred) for tasks such as configuration generation, validation, and operational troubleshooting Strong troubleshooting skills across multiple layers (L1–L3+) Experience working with: Network hardware (routers, switches) Optics and cabling (e.g., QSFP, fiber) Experience managing or driving deployments with remote hands / data center technicians Preferred: Experience with multi-site or multi-region data center deployments Familiarity with capacity planning and scaling network infrastructure Experience with network monitoring and observability tools Basic scripting ability (Python preferred) for Validation, Configuration generation, Troubleshooting Experience working in hyperscale or large distributed environments Wondering if you're a good fit? We believe in investing in our people, and value candidates who can bring their own diversified experiences to our teams – even if you aren't a 100% skill or experience match.