Thermal R&D Engineer

Advantest America; Lake Forest (CA); On-site; USD 80,000 - 120,000; Full time

Job summary

Advantest America is seeking a Thermal R&D Engineer located in Lake Forest, California. The ideal candidate will have hands-on experience with two-phase cooling systems and refrigeration solutions, focusing on the design and prototyping of cooling technologies.

This role involves developing advanced cooling systems for semiconductor test environments, collaborating with cross-functional teams, and optimizing designs for efficiency and reliability.

Qualifications

• Hands-on experience in two-phase cooling and refrigeration-based systems.
• Strong fundamentals in thermodynamics and heat transfer.
• Experience designing and validating evaporators, condensers, compressors, and refrigerant loops.

Responsibilities

• Design, develop, and optimize two-phase cooling systems.
• Define system-level architecture and performance requirements.
• Build and assemble prototype hardware and test rigs.
• Plan and execute experiments for thermal performance characterization.
• Develop and validate models for heat transfer and fluid flow.
• Evaluate refrigerants for performance and environmental impact.
• Collaborate with teams to integrate solutions.
• Drive design optimization for efficiency and robustness.
• Contribute to long-term technology roadmaps.

Skills

Thermodynamics

Heat transfer

Two-phase cooling systems

Refrigeration systems

Job description

Position Overview

Advantest is a global leader in semiconductor test and measurement solutions. To support nextgeneration test platforms and increasing device power densities, we are expanding our Global Thermal R&D Team to develop advanced cooling technologies.

We are seeking a Thermal R&D Engineer with handson experience in twophase cooling and refrigerationbased systems. This role focuses on the architecture, design, prototyping, and validation of closedloop phasechange cooling solutions for highperformance semiconductor test environments.

The ideal candidate combines strong fundamentals in thermodynamics and heat transfer with practical experience designing and experimentally validating evaporators, condensers, compressors, and refrigerant loops. This is a highly technical, handson R&D role with real product impact.

Key Responsibilities

• Design, develop, and optimize twophase cooling systems, including evaporators, condensers, compressors, and closedloop refrigerant circuits for semiconductor test applications
• Define systemlevel architecture, component specifications, and performance requirements for refrigerationbased and phasechange cooling solutions
• Build and assemble prototype hardware, fluid loops, test rigs, and instrumentation to experimentally evaluate performance
• Plan and execute experiments to characterize thermal performance, pressure drop, stability, and reliability of twophase systems
• Develop and validate analytical, firstprinciples, and simulation models for heat transfer and fluid flow in phasechange systems
• Evaluate refrigerants with respect to performance, operating temperature range, environmental impact, safety, and material compatibility
• Collaborate closely with mechanical, electrical, manufacturing, and system teams to integrate cooling solutions into complex test platforms
• Drive design optimization for efficiency, robustness, manufacturability, and cost
• Contribute to longterm technology roadmaps for advanced thermal and twophase cooling solutions