Hardware Engineer, Liquid Cooling

CoreWeave; Warszawa; On-site; PLN 240,000 - 360,000; Full time

Benefits offered by this job

Living Wage accreditation

Job summary

CoreWeave in Warsaw, Poland, is seeking a Hardware Engineer, Liquid Cooling, to own the liquid cooling infrastructure from rack to facility interface. You will automate the hardware lifecycle, develop management services, and build monitoring for pumps, valves, and sensors.

You will partner with facilities teams, server OEMs, and cooling vendors to qualify platforms, resolve issues, and handle regional thermal escalations. English required; on-call rotations apply.

Qualifications

• 4+ years of professional experience in hardware, infrastructure, thermal, or platform engineering roles within data centre, cloud, or high-performance computing environments.
• Hands-on experience with in-rack CDUs (Coolant Distribution Units), liquid-to-air heat exchangers, or remote cooling units.
• Solid understanding of data centre thermal design principles, coolant types, thermal transfer mechanisms, and leak detection methods.
• In-depth knowledge of server hardware, components, and fleet management technologies.
• Proficiency in Python or Ansible, with hands-on experience programmatically interacting with hardware via Redfish, IPMI, or SSH (Redfish preferred).
• Demonstrated experience supporting production infrastructure, driving incident escalations through to root-cause resolution, and participating in on-call rotations.
• Excellent technical documentation and problem-solving skills, with fluency in written and spoken English.

Responsibilities

• Own liquid cooling infrastructure from the rack to the facility interface.
• Automate the liquid cooling hardware lifecycle and develop hardware management services.
• Build monitoring systems for pumps, valves, and sensors.
• Partner with facilities teams, server OEMs, and cooling vendors to qualify platforms and troubleshoot issues.
• Serve as the regional escalation point for thermal issues across EMEA and APAC.

Skills

Hardware engineering

Infrastructure engineering

Thermal engineering

HPC environments

Tools

Python

Ansible

Redfish

IPMI

SSH

Job description

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

The Warsaw team is CoreWeave’s EMEA hub for Hardware Compute, focusing primarily on CoreWeave Omni-our model for deploying and operating the CoreWeave Cloud Platform inside customer- and partner-owned data centres. We build, scale, and maintain the infrastructure behind high-density GPU systems, where thermal design, CDU integration, and cooling telemetry are first-class engineering challenges across diverse facility water loops and vendor configurations.

About the role

As a Hardware Engineer, Liquid Cooling, you will own liquid cooling infrastructure from the rack to the facility interface. In this hands-on role spanning engineering and operational support, you will automate the liquid cooling hardware lifecycle, develop hardware management services, and build monitoring systems for pumps, valves, and sensors. You will partner with facilities teams, server OEMs, and cooling vendors to qualify platforms, resolve RMA issues, and troubleshoot production thermal events down to root cause. Additionally, you will serve as the regional escalation point for thermal issues across EMEA and APAC, participate in an on-call rotation, and feed operational insights back into system automation and design improvements.

Who You Are

• 4+ years of professional experience in hardware, infrastructure, thermal, or platform engineering roles within data centre, cloud, or high-performance computing environments.
• Hands-on experience with in-rack CDUs (Coolant Distribution Units), liquid-to-air heat exchangers, or remote cooling units.
• Solid understanding of data centre thermal design principles, coolant types, thermal transfer mechanisms, and leak detection methods.
• In-depth knowledge of server hardware, components, and fleet management technologies.
• Proficiency in Python or Ansible, with hands-on experience programmatically interacting with hardware via Redfish, IPMI, or SSH (Redfish preferred).
• Demonstrated experience supporting production infrastructure, driving incident escalations through to root-cause resolution, and participating in on-call rotations.
• Excellent technical documentation and problem-solving skills, with fluency in written and spoken English.

Preferred:

• Experience bringing up new data centre regions or operating within customer/partner-owned facility infrastructure.
• Familiarity with rack-scale liquid-cooled platforms (e.g., NVIDIA GB200 / GB300) and CDU vendor management interfaces.
• Experience with BMC technologies, Kubernetes-based services, and observability stacks (e.g., Prometheus, Grafana).
• Familiarity with facility-side systems including chilled water plants, CRAHs, and Building Management Systems (BMS).

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.

• You love to: Solve problems at the intersection of hardware, software, and physical data centre facilities while automating thermal management workflows.
• You're curious about: Uncovering the root cause of complex thermal failures and integrating advanced liquid cooling technologies at scale.
• You're an expert in: Data centre thermal dynamics, hardware telemetry, and building reliable monitoring systems for liquid cooling infrastructure.

Why CoreWeave?

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 provides the opportunity to develop innovative solutions to complex problems. As we get set for take-off, the organisation’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!

We're hiring across multiple levels. Typical cash compensation ranges from ~240,000-360,000 PLN , with additional performance based bonus & equity that can significantly increase total compensation. 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.

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.