Thermo - Mechanical Design Engineer - Heat Pipes

About the Team

As a Thermo‑Mechanical Design Engineer, you will play a key role in the development, design, qualification, and deployment of advanced heat pipe systems for cutting‑edge applications. You will work closely with the Heat Pipe Responsible Engineer and cross‑functional teams to mature technologies from concept through production. The ideal candidate will drive innovation and ensure the highest standards in heat pipe technology, contributing to next‑generation sustainable energy solutions.

• Perform design, modeling, and analysis of heat pipe systems, ensuring compatibility with interfaces in their intended applications
• Support development of manufacturing methods for prototyping and mass manufacturing of heat pipes
• Support development of test articles, stands, and procedures for validating the limits of heat pipe performance and life characteristics
• Coordinate with internal teams and external stakeholders to drive the execution of customer requirements into delivered hardware products
• Define operating procedures and limits for heat pipes to inform end users of performance envelope
• Investigate heat pipe failure and define reliability limits; integrate fixes rapidly

• Bachelor’s degree in Mechanical / Aerospace Engineering, Nuclear Engineering, or a related physics‑based field
• 2+ years of experience in engineering, with a focus on thermal or heat transfer systems
• Demonstrated experience with thermal modeling software (e.g., COMSOL, ANSYS)

• Master’s in Nuclear Engineering, Thermal Sciences, or Mechanical / Aerospace Engineering
• Knowledge of materials science as it applies to alloy selection for heat transfer and structural properties
• Demonstrated knowledge in simulation of high temperature 2‑phase flow fields
• Demonstrated expertise in heat pipe design, analysis, manufacturing, and test
• Strong understanding of nuclear safety standards, testing protocols, and regulatory requirements
• 2+ years of experience in high temperature (500°C+) systems, including prior work with heat pipe technology
• Experience with sodium purification and material handling
• Exceptional communication skills to work effectively across teams and convey technical information to non‑specialists

• Ability to work long hours and weekends as necessary to support critical milestones.

Torrance, CA

Antares is an Equal Opportunity Employer. Employment decisions are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.

To conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR.