Radiation Shielding Engineer
Listed on 2026-06-15
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Engineering
Systems Engineer, Quality Engineering, Electrical Engineering, Mechanical Engineer
Location
Los Angeles
Employment TypeFull time
DepartmentNuclear Engineering
Compensation- $120K - $240K Offers Equity
As a growing Series B startup, the salary range is intentionally wide as we determine the most appropriate package for each individual, taking into consideration: years of experience, educational background, and unique skills and abilities as demonstrated throughout the interview process. Our intent is to offer a salary that is commensurate for the company’s current stage of development and allows the employee to grow and develop within a role.
In addition to the significant stock option package, the estimated salary range for this role is posted
About the RoleAs a member of the Licensing and Safety Analysis team, you will be the responsible engineer for the characterization of radiation sources as well as the design and analysis of radiation shielding for reactor operation, shutdown conditions, as well as post operation transportation, storage, and disposition. You will apply best available analysis tools to characterize radiation sources from fission, activation, and decay.
You will work as an integral member of the reactor and site design team to design and analyze the best available shielding configuration to meet customer requirements for a variety of deployment scenarios.
The ideal candidate has a mix of industry and academic experience and has worked in a team-oriented environment to develop nuclear technologies for real-world applications. While you may have an area of expertise, you’re not afraid to operate as a generalist in a growing organization.
Roles and ResponsibilitiesYou will develop and provide expertise in a subset of the following:
- Ownership of radiation shielding design and analysis
- Development of trade studies of materials choices
- Development of neutronics simulations to characterize radiation sources during operation and in post-operation configurations
- Optimization of radiation shielding for deployment and post-operation transportation.
- Engagement in regulatory requirement compliance strategies and application to licensing pathways.
- Ensuring utilized tools and analyses are established and maintained in compliance with Antares quality assurance program.
- Bachelor’s degree in nuclear or mechanical engineering, physics, material science, or related field
- 3+ years of experience with radiation shielding analysis and design
- Proficiency in modern radiation shielding analysis tools, such as MCNP/ADVANTG, SCALE/MAVRIC, or similar Monte Carlo variance reduction tools
- Ability to navigate regulatory requirements, shielding design features, analysis tools and manufacturing methods.
- Strong interpersonal and collaborative skills, enthusiasm for problem solving, and desire to modernize nuclear design and operation
- Master's degree or PhD in nuclear engineering
- Demonstrated track record of high impact in the achievement of team goals
- Strong project management skills and effective communication of technical concepts across multi-disciplinary teams
- Broad knowledge of nuclear interactions with material selections, especially for radiation shielding applications
- Working knowledge of a programming language, preferably Python
- Ability to work long hours and weekends as necessary to support critical milestones
- Ability to travel to regulatory locations as needed
- We are located in Torrance, CA in a 145,000 square foot, brand new facility featuring large open spaces for team collaboration, R&D, and production, as well as easy access to the 405, 105, and 110 freeways. Our facility is in the heart of Los Angeles' vibrant emerging tech ecosystem alongside many other high growth startups and enterprises.
Antares is an Equal Opportunity Employer. Employment decisions are based solely on merit, competence, and qualifications, without regard to race, color, religion, gender, national origin/ethnicity, veteran status, disability status, age, sexual orientation, gender identity, marital status, mental or physical disability, or any other legally protected status.
ITAR RequirementsTo conform to U.S. Government export regulations, applicant must be a (i) U.S. citizen or national, (ii) U.S. lawful, permanent resident (aka green card holder), (iii) Refugee under 8 U.S.C. section 1157, or (iv) Asylee under 8 U.S.C. section 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
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