"high temperature gas reactor" Jobs

21 open tech roles matching “high temperature gas reactor”, taken straight from company career pages — not reposted from other job boards. Most in demand right now: Mechanical Engineering, Star-CCM+, CFD. Every listing is re-checked daily and closed roles are removed.

Showing 20 of 21 results

Radiant

Join Radiant as a Senior Thermal Modeling & Analysis Engineer to lead CFD and thermal modeling for innovative nuclear microreactors.

Radiant El Segundo, CA Published 1 month ago
Flexible on stack
Radiant

Join Radiant as a Senior Thermal Modeling Engineer to drive the development of portable nuclear microreactors in a dynamic startup environment.

Radiant El Segundo, CA Published 1 month ago
Flexible on stack
Radiant

Join Radiant as a Senior Thermal-Hydraulics Engineer to design and implement simulations for innovative nuclear microreactors.

Radiant El Segundo, CA Published 1 month ago
Flexible on stack
Radiant

Join Radiant as a Senior Thermal Modeling Analyst to drive the development of portable nuclear microreactors in a collaborative environment.

Radiant El Segundo, CA Published 1 month ago
Flexible on stack
Valar Atomics

Lead the design and operation of helium systems for next-generation high-temperature gas-cooled reactor technology at Valar Atomics.

Valar Atomics Torrance, California, United States $144k–$176k/yr Published 1 month ago
Valar Atomics

Lead the design and commissioning of process instrumentation for advanced nuclear reactor technologies at Valar Atomics.

Valar Atomics Torrance, California, United States $196k–$240k/yr Published 1 month ago
Valar Atomics

Lead the instrumentation, control, and electrical architecture for a high-temperature nuclear power conversion system at Valar Atomics.

Valar Atomics Torrance, California, United States $225k–$300k/yr Published 2 months ago
Radiant

Join Radiant as a Senior Test Engineer to lead testing operations for innovative nuclear microreactor technology in a fast-paced environment.

Radiant El Segundo, CA Published 2 months ago
Radiant

Join Radiant as a Test Engineer to drive test operations for innovative portable nuclear microreactor technology in a fast-paced environment.

Radiant El Segundo, CA Published 2 months ago
Valar Atomics

Lead the OT engineering team for fuel at Valar Atomics, focusing on high-temperature nuclear power systems.

Valar Atomics Torrance, California, United States $200k–$275k/yr Published 1 month ago
Radiant

Lead the design and maintenance of electrical test infrastructure for a groundbreaking portable nuclear microreactor.

Radiant El Segundo, CA Published 3 months ago
Valar Atomics

Join Valar Atomics as a Senior OT Data Engineer to own operational data architecture for advanced nuclear systems.

Valar Atomics Torrance, California, United States $170k–$210k/yr Published 1 month ago
Flexible on stack
Radiant

Lead an interdisciplinary team in nuclear engineering for portable microreactors at Radiant.

Radiant El Segundo, CA, United States Published 1 day ago
Flexible on stack
Radiant

Lead interdisciplinary nuclear engineering efforts for portable nuclear microreactors at a startup focused on innovative energy solutions.

Radiant El Segundo, CA, United States Published 1 day ago
Flexible on stack
Mariana Minerals

Join Mariana Minerals as a Sr./Staff Pyrometallurgical Process Engineer to lead innovative high-temperature refining systems for critical minerals.

Mariana Minerals Houston, TX Published 4 days ago
Valar Atomics

Join Valar Atomics as a Senior Welder to fabricate precision components for modular nuclear reactor systems in a hands-on shop-floor role.

Valar Atomics Torrance, California, United States $35–$50/hr Published 1 week ago
Valar Atomics

Join Valar Atomics as an Instrumentation & Controls Technician to ensure the safe operation of nuclear energy systems.

Valar Atomics Torrance, California, United States $45–$65/hr Published 8 months ago
Valar Atomics

Join Valar Atomics as an Instrumentation & Controls Technician to ensure the safe operation of nuclear energy systems.

Valar Atomics Orangeville, Utah, United States $45–$65/hr Published 2 months ago
Valar Atomics

Join Valar Atomics as a turbomachinery mechanical designer to influence high-efficiency power generation technology from the ground up.

Valar Atomics Torrance, California, United States $140k–$215k/yr Published 1 month ago
Valar Atomics

Join Valar Atomics as a Rotordynamics Engineer to influence the design of advanced turbomachinery for clean nuclear power generation.

Valar Atomics Torrance, California, United States $140k–$215k/yr Published 1 month ago