Senior Nuclear Design & Safety Engineer

Forge Atomics; El Segundo (CA); Hybrid; USD 170,000 - 220,000; Full time

Benefits offered by this job

Equity

Stock options

Medical, vision, dental

Job summary

Forge Atomics is seeking a Sr. Nuclear Engineer to own end-to-end nuclear design and safety analysis for Ember, from core design to first criticality.

You will lead analyses, mentor engineers, and collaborate across fluids, structures, and manufacturing teams to deliver manufacturable designs. The role requires a strong track record in modeling and risk reduction, with willingness to travel and relocate to the South Bay area of Los Angeles County.

Qualifications

• Bachelor's degree in nuclear engineering, physics, or a related technical discipline.
• 5+ years of engineering experience designing, analyzing, and building complex hardware.

Responsibilities

• Support key aspects of nuclear core design including fuel assembly design, reactivity control through burnable poisons, chemical, and mechanical shim, thermal hydraulics, and fuel cycle design
• Own reactivity control design and analysis: control rod worth, shutdown margin, reactivity coefficients, chemical and mechanical shim, and transient response
• Perform radiation shielding and release analysis against regulatory limits
• Work closely with fluids, structures, components and manufacturing teams to deliver a highly system-optimized and manufacturable design
• Maintain tight partnerships with fuel procurement supply chain including enrichment service providers and fuel assembly fabricators to ensure high manufacturability of our design
• Own a significant portion of the nuclear system through initial criticality, extended full power operations, and fleet wide commercial deployment
• Provide training and mentorship to junior nuclear engineers, setting the standard for technical rigor across the team
• Experience with nuclear system design and analysis, including core geometry, reactivity simulations, depletion analysis, and radiation shielding
• Experience with thermal hydraulics, heat transfer, and fluid flow regimes
• Experience designing to key regulatory standards such as 10 CFR Part 50/52/53
• Experience with radiation release analysis, including source term determination and dispersion analysis

Skills

Nuclear design

Reactivity analysis

Radiation shielding

Thermal hydraulics

Leadership

Trade studies

Regulatory standards

Education

Bachelor's degree in nuclear engineering, physics, or related

Job description

Forge Atomics is seeking a Sr. Nuclear Engineer to own end-to-end nuclear design and safety analysis for Ember, from core design to first criticality.

You will lead analyses, mentor engineers, and collaborate across fluids, structures, and manufacturing teams to deliver manufacturable designs. The role requires a strong track record in modeling and risk reduction, with willingness to travel and relocate to the South Bay area of Los Angeles County.