Nuclear Consequence Engineer – Safety & Risk Modeling

General Matter; Los Angeles (CA); On-site; USD 150,000 - 210,000; Full time

Benefits offered by this job

Stock options

Medical coverage

401(k) plan

Job summary

General Matter in Los Angeles is seeking a Nuclear Consequence Analysis Engineer to quantify radiological and chemical consequences of accident scenarios across a facility, building source terms, modeling dispersion, and estimating dose and exposure to workers, the public, and the environment. This is a systems-level role shaping the ISA that underpins our 10 CFR Part 70 license.

The position requires strong engineering fundamentals, experience with dispersion modeling tools, and collaboration

Qualifications

• Bachelor's degree in Nuclear Engineering, Chemical Engineering, Health Physics, Physics, or a related field.
• Strong knowledge of consequence/accident analysis methods and radiological and/or chemical dispersion modeling.
• Proficiency in consequence modeling tools such as HotSpot, RASCAL, MACCS, ARCON, ALOHA, or similar software.
• Excellent analytical and problem-solving skills.
• Strong verbal and written communication skills, with the ability to convey technical information to diverse audiences.
• Ability to work collaboratively in a team-oriented environment.

Responsibilities

• Develop consequence analyses for radiological and chemical release scenarios across normal, off-normal, and accident conditions.
• Develop and document source terms for postulated accident sequences.
• Model atmospheric dispersion and estimate downwind concentrations, doses, and exposures using codes such as HotSpot, RASCAL, MACCS, ARCON, ALOHA, or similar tools.
• Support the Integrated Safety Analysis (ISA) by characterizing consequence severity and informing the selection of safety controls under 10 CFR Part 70.
• Evaluate consequences against applicable performance requirements (e.g., 10 CFR 70.61) and dose/exposure criteria.
• Collaborate with criticality safety, fire protection, process, and licensing teams to ensure consistent accident scenario definition.
• Investigate consequence-related findings and support development of corrective actions as necessary.
• Maintain accurate analyses, assumptions, and documentation to support audits and regulatory reviews.

Skills

Engineering fundamentals

First principles

Analytical skills

Problem solving

Communication skills

Team collaboration

Education

Bachelor's degree in Nuclear Engineering or related field

Tools

HotSpot

RASCAL

MACCS

ARCON

ALOHA

Job description

General Matter in Los Angeles is seeking a Nuclear Consequence Analysis Engineer to quantify radiological and chemical consequences of accident scenarios across a facility, building source terms, modeling dispersion, and estimating dose and exposure to workers, the public, and the environment. This is a systems-level role shaping the ISA that underpins our 10 CFR Part 70 license.

The position requires strong engineering fundamentals, experience with dispersion modeling tools, and collaboration