Senior Engineer HPC Network

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 .

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Network Engineer HPC Network

We are looking for a highly motivated HPC Network Engineer to support the deployment and management of large-scale data center infrastructure. This role places you at the forefront of high-performance computing technologies with a strong focus on Infiniband (IB) systems. Youll work closely with global teams and customers to ensure optimal system performance reliability and scalability while driving continuous improvement through automation and operational excellence.

Key Responsibilities

• Deploy and manage Infiniband network systems in high-scale data center environments.
• Oversee the end-to-end lifecycle of IB hardware and software components.
• Develop and maintain tools to automate deployment monitoring and troubleshooting workflows.
• Analyze and resolve complex network performance connectivity and stability issues.
• Collaborate cross-functionally with internal teams and external customers around the globe to ensure high-quality outcomes.
• Participate in a rotating on-call schedule to provide 24/7 operational support.

Required Qualifications

• Hands-on experience with Infiniband networking technologies.
• Strong foundational knowledge of networking concepts and protocols.
• Experience using Grafana and PromQL for monitoring and visualization.
• Proficient in Linux systems administration.
• Experience with infrastructure-as-code tools such as Ansible and HELM .
• Proficiency in at least one scripting or programming language (e.g. Python Go ).
• Strong problem-solving skills with a proven track record in troubleshooting complex infrastructure and application issues.
• Familiarity with diagnosing issues at the network and server hardware component level.
• Excellent verbal and written communication skills with a collaborative mindset.

Preferred Qualifications

• Experience operating large-scale environments with 1000 switches or nodes.
• Background in data center networking.
• Exposure to HPC-specific workloads and architectures.
• Familiarity with NVIDIA UFM (Unified Fabric Manager) .
• Experience with NCCL (NVIDIA Collective Communications Library) .

The base pay and target total cash for this position range from $165000 to $220000 and ttc $190000 to ttc $253000 accordingly. Pay is based on a number of factors including market location and may vary depending on job-related knowledge skills and experience. This position includes a discretionary bonus equity and a comprehensive benefits package.

To fulfil 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.

Our Workplace

While we prioritize a hybrid work environment remote work may be considered for candidates located more than 30 miles from an office based on role requirements for specialized skill sets. New hires will be invited to attend onboarding at one of our hubs within their first month. Teams also gather quarterly to support collaboration

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.

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 candidates services and will in no way establish any prior claim by your company to representation of that candidate should the candidates 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.

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Required Experience:

Senior IC