Etched
Thermal /Mechanical Hybrid Engineer
About this role
Etched seeks an experienced Thermal/Mechanical Engineer to lead the design and optimization of direct-to-chip cold plate modules and water cooling systems for high-performance AI inference data center hardware. You'll own both thermal and mechanical aspects of advanced cooling solutions, from component selection through testing and validation.
What you'll do
- Design and optimize direct-to-chip cold plate modules including pedestals, nozzles, and fin geometries
- Develop water cooling systems with manifolds, quick disconnects, CDUs, and heat exchangers for high-power processors
- Conduct liquid thermal simulations using tools like Fluent to predict heat exchanger performance
- Select and evaluate thermal interface materials (TIMs) to maximize thermal conductivity and heat dissipation
- Test, validate, and troubleshoot thermal management systems to meet performance and reliability standards
- Collaborate with cross-functional teams on integration of thermal solutions into broader systems
What they're looking for
- Direct-to-chip cold plate design and optimization
- Water cooling system design
- Thermal simulation (Fluent or similar)
- Mechanical CAD (NX, Creo, CATIA)
- GD&T and mechanical tolerancing
- Thermal interface material selection and evaluation
- DFM/DFA principles
- Advanced cooling concepts (phase change, liquid cooling)
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Etched
Etched builds AI inference hardware, designing and manufacturing complex mechanical and electrical components for data center systems. The company is hiring mechanical engineers, PCB designers, hardware verification engineers, and software engineers to develop manufacturing processes, circuit boards, verification infrastructure, and internal tools across its hardware and operations.
- Website
- etched.com
Likely interview questions
- Walk us through your experience designing direct-to-chip cold plate modules—what were the key thermal and mechanical challenges you faced, and how did you optimize for both performance and manufacturability?
- Describe your proficiency with thermal simulation tools like ANSYS Fluent. How have you used liquid thermal simulations to predict heat exchanger performance and validate designs before physical testing?