Hardware Engineer, Liquid Cooling

CoreWeave is The Essential Cloud for AI™, delivering technology, tools, and teams to enable innovators to build and scale AI. Founded in 2017 and publicly traded since 2025, CoreWeave operates a platform combining superior infrastructure performance with deep technical expertise, trusted by leading AI labs, startups, and global enterprises. The Warsaw team serves as CoreWeave's EMEA hub for Hardware Compute, focusing primarily on deploying and operating the CoreWeave Cloud Platform in customer- and partner-owned data centres.

• 4+ years of professional experience in hardware, infrastructure, thermal, or platform engineering 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 experience interacting with hardware via Redfish, IPMI, or SSH (Redfish preferred).
• Experience supporting production infrastructure, handling incident escalations, root-cause resolution, and on-call rotations.
• Excellent technical documentation and problem-solving skills.
• Fluency in written and spoken English.

Nice to have:

• 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 such as chilled water plants, CRAHs, and Building Management Systems (BMS).

• Own liquid cooling infrastructure from rack to facility interface.
• Automate the liquid cooling hardware lifecycle.
• 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 resolve RMA issues.
• Troubleshoot production thermal events down to root cause.
• Serve as the regional escalation point for thermal issues across EMEA and APAC.
• Participate in an on-call rotation.
• Feed operational insights back into system automation and design improvements.

Employment offers are conditional upon a satisfactory basic criminal record check conducted in compliance with GDPR. This position requires access to export controlled information; eligibility to access such information as defined by U.S. Government export regulations is required.