Hardware Engineer, Liquid Cooling

coreweaveu; Warszawa; On-site; PLN 210,000 - 330,000; Full time

Benefits offered by this job

Living Wage accreditation

Job summary

CoreWeave is expanding its Warsaw hub and seeks a Hardware Engineer focused on liquid cooling infrastructure. You will balance hands-on engineering with operational support to automate hardware lifecycles and build monitoring and control systems.

You will work with data centre facilities teams, server OEMs, and cooling vendors to qualify platforms, resolve issues, and drive improvements across EMEA and APAC regions.

Qualifications

• 4+ years of professional experience in hardware, infrastructure, thermal, or platform engineering roles in 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.
• Strong 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.
• 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, balancing hands-on engineering with operational support.
• Automate the liquid cooling hardware lifecycle and develop hardware/firmware management services.
• Build monitoring, alerting, and control systems for pumps, valves, and sensors; troubleshoot live thermal events.
• Collaborate with data centre facilities teams, server OEMs, and cooling vendors; qualify new platforms and resolve issues.
• Provide regional escalation support across EMEA and APAC and contribute to platform automation improvements.

Skills

Python

Ansible

Redfish

IPMI

SSH

Education

Bachelor's degree in Computer Science, Engineering, or a related technical field

Tools

Prometheus

Grafana

Kubernetes

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, with a primary focus on CoreWeave Omni-our model for deploying and operating the CoreWeave Cloud Platform inside customer- and partner-owned data centres. In an Omni deployment, the customer owns the facility and the physical hardware while CoreWeave delivers and operates the platform and managed services around it, making thermal design, CDU integration, and cooling telemetry 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, balancing hands‑on engineering with operational support. You will automate the liquid cooling hardware lifecycle, develop hardware/firmware management services, and build monitoring, alerting, and control systems for pumps, valves, and flow/temperature sensors. Working closely with data centre facilities teams, server OEMs, and cooling vendors, you will qualify new platforms, resolve RMA and quality issues, and troubleshoot live production thermal events down to root cause. Additionally, you will serve as the regional escalation point across EMEA and APAC, participate in an on‑call rotation, and feed operational insights back into platform automation and design improvements.

Who You Are

• Bachelor's degree in Computer Science, Engineering, or a related technical field (or equivalent practical experience).


• 4+ years of professional experience in hardware, infrastructure, thermal, or platform engineering roles in 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.


• Strong 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 programmatically interacting with hardware using 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, analytical problem‑solving skills, and 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 tools (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 boundary between hardware, software, and physical data centre buildings 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 and alerting 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 som