{"@context":"https://schema.org","@type":"JobPosting","title":"Thermal Systems Engineer (Contract)","description":"

We are seeking an experienced Thermal Systems Engineer to join our team in Lake Forest, California.

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This position offers a unique opportunity for a multidisciplinary engineer to contribute to the design, testing, integration, and support of advanced thermal systems used in semiconductor, photonics, and embedded-device applications.

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The Thermal Systems Engineer will perform complex thermal and mechanical engineering activities, including developing new designs, testing and evaluating system performance, building engineering prototypes, and resolving field-related technical issues. This individual will collaborate closely with engineering, manufacturing, quality, procurement, technical support, and field service teams.

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Essential Duties and Responsibilities

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Design and develop thermal components and interfaces for active thermal-control systems.
Conduct thermal analyses to evaluate the performance of components, modules, and complete systems.
Collaborate with cross-functional engineering teams to integrate thermal solutions into product designs.
Perform thermal testing and validation to ensure designs meet established specifications and performance requirements.
Optimize thermal designs to improve efficiency, reduce costs, and enhance overall system performance.
Develop and maintain detailed documentation of designs, analyses, test procedures, and results.
Remain current on advancements in thermal-management technologies, tools, and methodologies.
Ensure designs comply with applicable industry standards and thermal-performance requirements.
Partner with procurement, manufacturing, quality assurance, and technical support teams to establish specifications and assist with the selection of vendors, suppliers, parts, materials, and assemblies.
Provide hands-on support during product installation and commissioning at customer sites.
Provide technical guidance and support to field service personnel.
Identify technical risks and opportunities for design or process optimization.
Serve as a technical point of contact for customers on select thermal-system issues.
Conduct hands-on evaluations of prototypes and subassembly builds, including detailed performance assessments.
Perform other duties as assigned.

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Education and Experience

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Bachelor’s degree in Mechanical Engineering, Thermal Engineering, Physics, or a related technical discipline required.
Master’s degree preferred.
Minimum of five years of relevant engineering experience, preferably within a high-technology environment.
Previous experience as a thermal design engineer, test engineer, product support engineer, or in a similar role.
Strong analytical, troubleshooting, and problem-solving abilities.
Demonstrated expertise with liquid- and refrigerant-based thermal systems.
Experience with chillers, condensing units, and heat exchangers is a plus.
Experience with electronic packaging, thermal testing, and the integration of thermal systems into automated handling equipment is preferred.
Experience working on cross-functional teams developing complex test systems involving motion-control hardware, electrical systems, and software is a plus.
Familiarity with burn-in ovens and active thermal-control solutions for automotive- or military-grade devices is a plus.
Experience with heaters, Peltier devices, heatsinks, sockets, cryogenics, condensation abatement, and airflow uniformity is desirable.
Experience with 3D mechanical design software, preferably SolidWorks.
Ability to travel domestically and internationally up to 25%, as required.
Ability to work onsite in Lake Forest, California.

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Additional Preferred Qualifications

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The following experience is highly valued but not required:

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Thermal modeling and analysis tools such as SolidWorks Flow Simulation or Ansys Icepak.
Design, certification, and deployment of semiconductor capital test equipment.

","datePosted":"2026-07-29","hiringOrganization":{"@type":"Organization","name":"recruitAbility"},"validThrough":"2026-08-28","jobLocation":{"@type":"Place","address":{"@type":"PostalAddress","addressLocality":"Lake Forest, CA","streetAddress":"San Jose, California, Korea, Republic of","addressRegion":"California","postalCode":"92630","addressCountry":"United States"}},"employmentType":"CONTRACT","baseSalary":{"@type":"MonetaryAmount","currency":"USD","value":{"@type":"QuantitativeValue","unitText":"YEAR","minValue":"0","maxValue":"0"}},"identifier":{"@type":"PropertyValue","name":"recruitAbility","value":"17853373301840128024RtH"},"directApply":true}