Senior Network Engineer II

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.
Why CoreWeave?
About
At CoreWeave, we work hard, have fun, and move fast! We're in an exciting stage of hyper-growth that you will not want to miss out on. We're not afraid of a little chaos, and we're constantly learning. Our team cares deeply about how we build our product and how we work together, which is represented through our core values:
Be Curious at Your Core
Act Like an Owner
Empower Employees
Deliver Best-in-Class Client Experiences
Achieve More Together
We support and encourage an entrepreneurial outlook and independent thinking. We foster an environment that encourages collaboration and enables the development of innovative solutions to complex problems. As we get set for takeoff, the organization's growth opportunities are constantly expanding. You will be surrounded by some of the best talent in the industry, who will want to learn from you, too. Come join us!
The base salary range for this role is zł321,000 to zł428,000. The starting salary will be determined by job-related knowledge, skills, experience, and the market location. We strive for both market alignment and internal equity when determining compensation. In addition to base salary, our total rewards package includes a discretionary bonus, equity awards, and a comprehensive benefits program (all based on eligibility).
To fulfill our obligation to protect client data, successful applicants offered employment with CoreWeave will be required to complete a basic criminal record check, conducted in compliance with GDPR. Employment offers are conditional upon receiving satisfactory check results.
What We Offer
In addition to a competitive salary, we offer a variety of benefits to support your needs, including:
Family-level Medical Insurance
Family-level Dental Insurance
Generous Pension Contribution
Life Assurance at 4x Salary
Critical Illness Cover
Employee Assistance Programme
Tuition Reimbursement
Work culture focused on innovative disruption
Benefits may vary by location.
Equal Opportunity
CoreWeave is an equal opportunity employer, committed to fostering an inclusive and supportive workplace. All qualified applicants and candidates will receive consideration for employment without regard to race, color, religion, sex, disability, age, sexual orientation, gender identity, national origin, veteran status, or genetic information.
Recruitment Agencies
CoreWeave does not accept speculative CVs. Any unsolicited CVs received will be treated as the property of CoreWeave and your Terms & Conditions associated with the use of CVs will be considered null and void.
Any unsolicited CVs sent by your company to us – that is to say, in any situation where we have not directly engaged your company in writing to supply candidates for a specific vacancy – will be considered by us to be a “free gift”, leaving us liable for no fees whatsoever should we choose to contact the candidate directly and engage the candidate’s services, and will in no way establish any prior claim by your company to representation of that candidate should the candidate’s details also be submitted by any other party.
Export Control Compliance
This position requires access to export controlled information. To conform to U.S. Government export regulations applicable to that information, applicant must either be (A) a U.S. person, defined as a (i) U.S. citizen or national, (ii) U.S. lawful permanent resident (green card holder), (iii) refugee under 8 U.S.C.
1157, or (iv) asylee under 8 U.S.C.
1158, (B) eligible to access the export controlled information without a required export authorization, or (C) eligible and reasonably likely to obtain the required export authorization from the applicable U.S. government agency. CoreWeave may, for legitimate business reasons, decline to pursue any export licensing process.
Updated privacy notice - UK and EU Job Applications
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Phosphor (6th Floor), 133 Park Street, London, SE1 9EA
and can be contacted by emailing careers.eu@coreweave.com. Controller’s data protection officer can be contacted at privacy@coreweave.com. Your personal data will be processed for the purposes of managing Controller’s recruitment related activities, which include setting up and conducting interviews and tests for applicants, evaluating and assessing the results thereto, and as is otherwise needed in the recruitment and hiring processes. Such processing is legally permissible under Art. 6(1)(f) of (i) Regulation (EU) 2016/679 (General Data Protection Regulation (“GDPR”) and (ii) the GDPR as it forms part of the laws of the UK (“UK GDPR”), as necessary for the purposes of the legitimate interests pursued by the Controller, which are the solicitation, evaluation, and selection of applicants for employment. Your personal data will be shared with Greenhouse Software, Inc., a cloud services provider located in the United States of America and engaged by Controller to help manage its recruitment and hiring process on Controller’s behalf. With respect to transfers originating from the UK or the European Economic Area ("EEA") to a country outside the UK or the EEA, we implement the appropriate transfer mechanism

Work arrangement
Yes