Hardware Engineer - Liquid Cooling

Hardware Engineer - Liquid Cooling

Core Weave is the Essential Cloud for AI™. Built for pioneers, Core Weave delivers a platform of technology, tools, and teams that enable innovators to build and scale AI with confidence. Trusted by leading AI labs, startups, and enterprises, Core Weave combines superior infrastructure performance with deep expertise to accelerate breakthroughs.

Core Weave is seeking a highly skilled and motivated Infrastructure/Hardware Engineer to join our Hardware Engineering team, reporting to the Hardware Engineering Manager. In this role, you will play a crucial part in the design, development, and optimization of our server hardware infrastructure, collaborating with cross‑functional teams, vendors, and stakeholders to deliver highly performant and reliable hardware solutions.

• Develop and maintain hardware/firmware management services.
• Automate all aspects of the server and liquid cooling hardware lifecycle.
• Serve as the senior point of contact for hardware and liquid cooling escalation and troubleshooting.
• Collaborate with cross‑functional teams to define server and liquid cooling hardware requirements, specifications, and system architecture.
• Create and maintain accurate documentation of liquid cooling hardware designs, specifications, test procedures, and results.
• Analyze and optimize the performance of liquid cooling hardware systems, identify bottlenecks, and propose improvements for enhanced efficiency.
• Establish processes for internal liquid cooling hardware testing, deployment, and performance optimization.
• Design, validate, and support rack‑level liquid cooling solutions, including in‑rack CDU (Coolant Distribution Unit) configurations.
• Work with liquid‑to‑air sidecars and end‑of‑row CDUs to manage heat rejection and optimize thermal performance.
• Collaborate with data center facilities teams to integrate liquid cooling systems into broader infrastructure designs.
• Develop and implement monitoring, alerting, and control systems for liquid cooling components (e.g., pumps, valves, flow sensors).
• Interface with server vendors and OEMs to validate compatibility of hardware with liquid‑cooled chassis and configurations.

Must have at least 4 years professional experience.

• Proficiency in ansible/python and experience interacting with server BMCs, using IPMI or Redfish (preferably Redfish).
• In‑depth knowledge of server hardware, components, and management technologies.
• Strong understanding of data center thermal design principles, including air and liquid cooling fundamentals.
• Hands‑on experience with in‑rack CDUs, liquid‑to‑air heat exchangers, or end‑of‑row cooling units.
• Familiarity with coolant types, thermal transfer mechanisms, and leak detection/mitigation techniques.
• Proven ability to collaborate with hardware and facility engineering teams to deliver integrated cooling solutions.
• Strong passion for automation and infrastructure scalability, with a commitment to continuous improvement.
• Excellent documentation skills and attention to detail.
• Strong analytical and problem‑solving abilities.

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

The base salary range for this role is $165,000 to $242,000. The starting salary will be determined based on job‑related knowledge, skills, experience, and market location. In addition to base salary, we offer a discretionary bonus, equity awards, and a comprehensive benefits program.

• Medical, dental, and vision insurance – 100% paid for by Core Weave
• Company‑paid Life Insurance
• Voluntary supplemental life insurance
• Short and long‑term disability insurance
• Flexible Spending Account
• Health Savings Account
• Tuition Reimbursement
• Employee Stock Purchase Program (ESPP)
• Mental Wellness Benefits through Spring Health
• Family‑f…