Thermal Engineer

Position: Staff Thermal Engineer
Core Weave is The Essential Cloud for AI. Built for pioneers by pioneers, Core Weave 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, Core Weave combines superior infrastructure performance with deep technical expertise to accelerate breakthroughs and turn compute into capability.

Founded in 2017, Core Weave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at

NÜ Metal is Core Weave's Hardware New Product Introduction (NPI) team, a multidisciplinary group of mechanical, thermal, electrical, and power engineers that takes new GPU and server platforms from early concept through validation, integration, and large-scale production across our data centers. The team bridges hardware design, manufacturing partners, and data center operations to de-risk new platforms early and ensure each new generation of high-density, often liquid-cooled hardware lands in the fleet reliably, efficiently, and at scale.

What You'll Do

* Own the architecture, design, and evolution of thermals for high-density, GPU-accelerated data centers.

* Design, validate, and optimize rack-level and server-level thermal solutions.

* Partner closely with data center teams to define end-to-end thermal architecture-from building infrastructure through the rack.

* Collaborate with world-class engineers developing next-generation AI/ML hardware platforms.

* Advise on data center secondary loop layout, commissioning, and operation

* Review and evaluate JDM/ODM thermal designs, including thermal simulations; independently run simulations as needed.

* Debug complex thermal and system-level issues, incorporating learnings into future designs.

* Collaborate with vendors and internal teams to manage heterogeneous deployments, ensuring a cohesive thermal strategy across varying CDUs, server platforms, and facilities.

* Drive thermal designs from early concept through mass production.

* Ensure designs meet high standards for efficiency, safety, reliability, and scalability.

* Partner with manufacturing teams to support production readiness and ramp.

* Actively contribute to architectural discussions, providing strong hardware design guidance and tradeoff analysis.

* Mentor and support the growth of junior engineers.

Who You Are

Minimum Qualifications:

* 10+ years of thermal management experience

* Bachelor's Degree in Mechanical Engineering, Aerospace Engineering, or a related technical field

* Experience in heatsinks, thermal interface materials, liquid cooling, heat exchangers and fans

Preferred Qualifications:

* 10+ years of experience designing complex thermal systems for hyperscale data centers

* Experience in liquid cooled data center architectures, including cold plates, wetted material compatibility, and CDUs

* Strong thermal design expertise

* Experience leading cross-functional design efforts in fast-paced environments

* Strong documentation and design review practices

* Excellent negotiation and stakeholder-management skills

* Understanding of rack-level thermal requirements and their impact on upstream infrastructure, including CDUs, facility piping, and chillers

The base salary range for this role is $188,000 to $275,000. The starting salary will be determined based on job-related knowledge, skills, experience, and 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).

What We Offer

The range we've posted represents the typical compensation range for this role. To determine actual compensation, we review the market rate for each candidate which can include a variety of factors. These include qualifications, experience, interview performance, and location.

In addition to a competitive salary, we offer a variety of benefits to support your needs, including:

* 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

* Ability to Participate in Employee Stock Purchase Program (ESPP)

* Mental Wellness Benefits through Spring Health

* Family-Forming support provided by Carrot

* Paid Parental Leave

* Flexible, full-service childcare support with Kinside

* 401(k) with a generous employer match

* Flexible PTO

* Catered lunch each day in our office and data center locations

* A casual work environment

* A work culture focused on innovative disruption

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…