Thermal Engineer, Liquid-Cooled Actuators

Dexmate Inc.; United States; On-site; USD 90,000 - 130,000; Full time

Job summary

Dexmate Inc. is seeking a Thermal Engineer to develop cooling solutions for compact robot actuators with a focus on liquid cooling.

You will own thermal models and cooling-system design, validating them on working hardware, and collaborating across motor, drive, and mechanical teams to maintain performance under realistic duty cycles. The role requires hands-on thermal design and testing experience, proficiency with CFD tools, and the ability to translate losses into thermal requirements while

Qualifications

• Hands-on thermal design and test experience with liquid-cooled electromechanical or power-electronics systems.
• Strong fundamentals in heat transfer, fluid mechanics, pressure-drop analysis and thermal resistance networks.
• Experience with conjugate heat-transfer or CFD tools such as Ansys Fluent, Star-CCM+ or equivalent, plus thermal-network modeling and experimental correlation.
• Ability to design practical cooling hardware and use thermocouples, flow and pressure measurements, or equivalent instrumentation to validate it.

Responsibilities

• Translate motor and inverter losses and robot duty cycles into thermal requirements, boundary conditions and operating limits.
• Develop conjugate heat-transfer and CFD models alongside reduced-order thermal models; correlate them to instrumented hardware.
• Design cold plates, stator jackets and heat paths, and specify coolant flow, pressure drop, pump operating points and system heat-rejection needs.
• Develop coolant routing through moving joints with mechanical engineers, accounting for motion, serviceability, sealing, compatibility and leakage risks.
• Plan and run thermal characterization across ambient conditions and transient duty cycles; diagnose hot spots and validate design changes.
• Provide measured thermal limits and model inputs to drive and firmware engineers for derating behavior; support supplier and manufacturing validation.

Skills

Heat transfer

Fluid mechanics

Thermal resistance networks

CFD tools

Tools

Ansys Fluent

Star-CCM+

Job description

Dexmate Inc. is seeking a Thermal Engineer to develop cooling solutions for compact robot actuators with a focus on liquid cooling.

You will own thermal models and cooling-system design, validating them on working hardware, and collaborating across motor, drive, and mechanical teams to maintain performance under realistic duty cycles. The role requires hands-on thermal design and testing experience, proficiency with CFD tools, and the ability to translate losses into thermal requirements while