Backed by Techstars.
About the role
Construct, own, and validate thermal models for the reactor core, spacecraft, radiator systems, and integrated vehicle thermal response. Anchor thermal models to experimental, analytical, and test data wherever available; quantify uncertainty and improve model fidelity over time.
What they're looking for
- Bachelor’s degree in Mechanical Engineering, Aerospace Engineering, Nuclear Engineering, Thermal Sciences, or a related technical discipline
- 5+ years of experience in thermal engineering, thermal analysis, heat transfer, spacecraft thermal systems, nuclear systems, high-temperature systems, or closely related hardware development
- Strong fundamentals in conduction, convection, radiation, transient heat transfer, thermal-fluid systems, and system-level thermal modeling
- Experience building and validating thermal models using test data, experimental data, or flight/hardware data
- Experience performing thermal design trades and communicating model assumptions, uncertainty, margins, and design implications to cross-functional engineering teams
- Master’s degree or higher in Mechanical Engineering, Aerospace Engineering, Nuclear Engineering, Thermal Sciences, or a related field
More about this role
At Antares, our long-term mission is to make clean energy abundant from Earth to the Asteroid Belt. We’re fueled by the belief that advanced nuclear energy can strengthen our military, solve the climate crisis, elevate global living standards, and expand humanity's presence in outer space. To achieve our mission, we’re building mass-producible, inherently safe, deployable microreactors that can be used terrestrially, underwater, and in space.
The Antares team hails from SpaceX, the White House, the Pentagon, the Department of Energy, MIT, Rigetti Computing, General Atomics, Relativity Space, Ursa Major, and National Laboratories like Idaho, Oak Ridge, Los Alamos, and Savannah River. Antares has raised over $600M in venture capital from top-tier investors and has hundreds of million-dollars on contract with the military services, NASA, and the Department of Energy.
As a Senior Space Thermal Engineer at Antares, you will own and drive the thermal design and analysis of a space nuclear vehicle, including the reactor, spacecraft, and heat rejection systems. You will develop, validate, and anchor thermal models to experimental and test data, using those models to guide early...
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