Senior Thermal Systems Engineer

Advantest America Inc. is part of Advantest Corporation, the world’s largest provider of automated test equipment (ATE) for the semiconductor industry. The company designs and manufactures cutting-edge testing solutions that help semiconductor manufacturers ensure the quality and performance of their products. Advantest is known for innovation, reliability, and a strong commitment to supporting its customers and employees.
Our Purpose & Values:
Mission:
Improve lives through advanced technologies and customer-focused innovation.
Vision:
Be the most trusted and valued test solution provider in the semiconductor value chain.
Core Values:
I
- Innovation is our Lifeblood
N
- Number One is Our Aspiration
T
- Trust is our Foundation
E
- Empowerment is Our Motivation
G
- Global is our Reach
R
- Respect is our Heart
I - Inclusion and Diversity is Our Commitment
T
- Teamwork is our Approach
Y
- Yes is Our Attitude
Why Join Us
At Advantest, innovation starts with people. We’re looking for curious, capable, and collaborative individuals ready to shape the future of semiconductor technology. You’ll join a global team where your ideas are valued, your growth is supported, and your work makes a real impact.
We foster an integrity-centered culture, where honesty, inclusion, and respect are the foundation of everything we do.

Senior Thermal Systems Engineer

Advantest Test Solutions, Inc. (ATS) is seeking a Senior Thermal Systems Engineer to serve as a thermal technical lead on our team in Lake Forest, CA. ATS is a leading provider of massively parallel electronic test systems, including System Level Test (SLT), burn-in, and semiconductor/module testing. We offer an exciting portfolio of high-performance test systems that support the semiconductor industry worldwide.

This individual will act as the thermal lead on assigned programs, taking ownership of technical decisions and drafting thermal requirements with minimal supervision. The role covers the full range of thermal and mechanical engineering functions related to the design, testing, and evaluation of thermal systems for electronic systems, including semiconductors, photonics, and embedded devices, from early concept through mass production. Responsibilities include directing thermal system design and validation, mentoring junior engineers, and serving as the primary technical point of contact for thermal scope on their programs.

• Serve as the thermal lead on assigned programs, making independent technical decisions and drafting thermal system requirements.
• Own thermal system design and validation for liquid-cooled and refrigerant-based systems, from architecture through release.
• Lead thermal system design and validation across the full product lifecycle, including prototyping, design validation, and transition to mass production.
• Design and develop thermal components such as cold plates (liquid-cooling and two-phase), ceramic heaters, heat sinks, chillers, and condensing units.
• Design and support high power, high temperature active thermal control systems.
• Perform hands-on thermal system testing and design validation to confirm designs meet specifications and performance requirements.
• Conduct thermal analyses to evaluate component and system-level performance.
• Collaborate with and provide technical direction to design and development teams to integrate thermal solutions into product designs.
• Mentor and provide technical guidance to less experienced engineers on the team.
• Optimize thermal designs to improve efficiency, reduce costs, and enhance performance.
• Develop and maintain detailed documentation of designs, analyses, and testing results.
• Stay current with advancements in thermal management technologies and methodologies.
• Ensure compliance with industry…