Antares
Thermo-Mechanical Engineer II
About this role
Antares seeks a Thermal-Mechanical Engineer II to own the thermal design and energy budget of a advanced nuclear microreactor's Power Conversion System. You will manage heat flow from system-level down to component details, develop heat rejection architecture, and ensure thermal performance through testing and field deployment.
What you'll do
- Own thermal energy budget and heat management across the Power Conversion System, closing loops with cycle performance
- Design heat rejection and cold-sink architecture, sizing and integrating recuperators against site conditions
- Define thermal configuration including insulation, heat-loss budgets, surface temperatures, and personnel protection
- Manage thermal interfaces and transient requirements across PCS components, reactor, and safety systems
- Support test rig instrumentation and correlate thermal models against actual hardware performance data
- Develop inspection and maintenance plans for temperature-limited hardware to manage long-term risk
What they're looking for
- Heat transfer analysis (conduction, convection, radiation)
- FEA or CFD thermal modeling and simulation
- High-temperature insulation system design
- Heat exchanger sizing and integration
- Thermal-mechanical fatigue and creep analysis
- Test instrumentation and data correlation
- Advanced materials selection for high-temperature service
- Cross-functional subsystem integration
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Antares
Antares develops advanced nuclear microreactors designed for diverse applications including terrestrial, underwater, and space use, with a focus on inherently safe and mass-producible designs. The company is hiring electrical engineers, nuclear engineers, thermo-mechanical designers, software engineers, and manufacturing engineers to advance reactor systems from design and analysis through testing, qualification, and production.
View all jobs at AntaresLikely interview questions
- Walk us through a thermal management project where you sized heat rejection hardware—what were the key tradeoffs and constraints?
- How do you approach correlating thermal FEA predictions to test data, and what have you done when they didn't match?