Senior DC Network Engineer - Automation & Spine-Leaf

Coreweave; Warszawa; On-site; PLN 180,000 - 280,000; Full time

Benefits offered by this job

Living Wage

Job summary

CoreWeave is seeking a Senior Network Engineer to join our Data Center Network Engineering Team in Warszawa. You will deploy, scale, and operate large-scale data center network infrastructure to support production workloads and rapid growth.

You will design multi-tier fabrics (Clos/spine-leaf), automate deployments, validate readiness, and collaborate with data center technicians and internal teams to optimize network performance and reliability.

Qualifications

• Proven experience designing and operating large-scale data center networks.
• Strong knowledge of BGP, routing policies and ECMP.
• Experience with fabric architectures (Clos/spine-leaf) and automation.

Responsibilities

• Adapt to a rapidly changing environment and learn new networking technologies.
• Design and deploy large-scale networks rapidly, leveraging automation.
• Plan, deploy, operate, and scale multi-tier data center fabrics across data centers.
• Drive end-to-end deployments: rack layout, cabling, optics, configuration, testing.
• Work with data center technicians to execute builds (rack, cable, power, optics).
• Validate network readiness before handing off to production traffic.
• Troubleshoot control plane (BGP), data plane (ECMP), and physical layer issues.
• Participate in reviews, design discussions, and deploy-runbooks documentation.

Skills

BGP

ECMP

Data center nets

Automation

Clos/spine-leaf

Rack design

Troubleshooting

Job description

CoreWeave is seeking a Senior Network Engineer to join our Data Center Network Engineering Team in Warszawa. You will deploy, scale, and operate large-scale data center network infrastructure to support production workloads and rapid growth.

You will design multi-tier fabrics (Clos/spine-leaf), automate deployments, validate readiness, and collaborate with data center technicians and internal teams to optimize network performance and reliability.