"neutronics" Jobs

23 open tech roles matching “neutronics”, taken straight from company career pages — not reposted from other job boards. Most in demand right now: Python, Nuclear Engineering, OpenMC. Every listing is re-checked daily and closed roles are removed.

Showing 20 of 23 results

Proxima Fusion

Join Proxima Fusion as a Neutronics Engineer to advance stellarator design and contribute to the future of clean energy.

Proxima Fusion Munich Published 8 months ago
Flexible on stack
Radiant

Join Radiant as a Senior Nuclear Engineer to lead modeling methods and reactor physics calculations for innovative nuclear microreactors.

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

Join Radiant as a Nuclear Engineer to lead sensor and instrumentation solutions for innovative portable nuclear microreactors.

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

Join Radiant as a Nuclear Engineer to develop innovative solutions for portable nuclear microreactors in a fast-paced startup environment.

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

Serve as a senior technical authority for nuclear instrumentation and controls systems at Valar Atomics.

Valar Atomics Torrance, California, United States $173k–$211k/yr Published 1 month ago
Helion

Join Helion as a Principal Nuclear Materials Engineer to develop materials for high-radiation environments in the pursuit of fusion power.

Helion Everett, WA Published 11 months ago
Flexible on stack
Radiant

Lead thermal-hydraulics analysis for a groundbreaking portable nuclear microreactor at a fast-paced startup.

Radiant El Segundo, CA Published 1 month ago
Radiant

Join Radiant as a Nuclear Engineer, Core Physics, designing testing operations for innovative portable nuclear microreactors.

Radiant El Segundo, CA Published 1 month ago
Helion

Lead the Nuclear Engineering team at Helion to advance fusion power technology in a pivotal role based in Everett, WA.

Helion Everett, WA Published 2 months ago
Valar Atomics

Join Valar Atomics as a Health Physics Technician to support advanced nuclear facilities and ensure radiological safety.

Valar Atomics Orangeville, Utah, United States Published 8 months ago
Proxima Fusion

Join Proxima Fusion as a Nuclear Design Safety Engineer to influence the design of fusion power plants with a focus on radiological safety.

Proxima Fusion Munich Published 2 months ago
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
Valar Atomics

Join Valar Atomics as a Staff CFD Analysis Engineer to lead high-fidelity simulations for advanced nuclear reactor systems.

Valar Atomics Torrance, CA $180k–$220k/yr Published 1 month ago
Flexible on stack
Valar Atomics

Lead system-level thermal-hydraulics modeling for advanced nuclear power systems at a pioneering energy startup.

Valar Atomics Torrance, CA $151k–$185k/yr Published 1 month ago
Flexible on stack
Radiant

Lead a team of nuclear engineers in designing and analyzing portable nuclear microreactors at a startup focused on innovative energy solutions.

Radiant El Segundo, CA Published 2 weeks ago
Inertia

Lead the design and analysis of critical components for the world's first fusion energy power plant at Inertia.

Inertia Livermore $125k–$225k/yr Published 6 months ago
Flexible on stack
Helion

Lead the mechanical hardware design of high-performance structural systems for Helion's fusion devices in Everett, WA.

Helion Everett, WA Published 1 month ago
Heavy meetings
Helion

Lead the mechanical hardware design of high-performance structural systems for Helion's fusion devices in a pivotal role at a growing company.

Helion Everett, WA Published 1 month ago
Helion

Join Helion as a Senior Materials Engineer to lead the fabrication and deployment of advanced ceramic components for fusion power applications.

Helion Everett, WA Published 5 months ago
K2 Space

Join K2 Space as a Radiation Effects Engineer to ensure satellite hardware reliability in extreme radiation environments.

K2 Space Los Angeles, CA $100k–$150k/yr Published 2 weeks ago
Flexible on stack