Los Angeles, CA · On-site
$120 - $165/hr
Roles and Responsibilities * Assist with neutronics modeling and simulations using MCNP, Serpent, or SCALE * Support Multiphysics analyses (thermal-hydraulics, heat transfer, structural mechanics)
Los Angeles, CA · On-site
$120 - $165/hr
Roles and Responsibilities * Assist with neutronics modeling and simulations using MCNP, Serpent, or SCALE * Support Multiphysics analyses (thermal-hydraulics, heat transfer, structural mechanics)
Santa Clara, CA · On-site +1
$122K - $168K/yr
Develop and execute models using codes such as MCNP, Serpent, and SCALE * Perform core lifecycle and fuel management analyses, including depletion, burnup, reactivity evolution, power distributions ...
Santa Clara, CA · On-site +1
$122K - $168K/yr
Develop and execute models using codes such as MCNP, Serpent, and SCALE * Perform core lifecycle and fuel management analyses, including depletion, burnup, reactivity evolution, power distributions ...
El Segundo, CA · On-site
$104K - $125K/yr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or ...
New
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El Segundo, CA · On-site
$104K - $125K/yr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or ...
New
Santa Clara, CA · On-site +1
$122K - $168K/yr
Develop and execute models using codes such as MCNP, Serpent, and SCALE * Perform core lifecycle and fuel management analyses, including depletion, burnup, reactivity evolution, power distributions ...
Santa Clara, CA · On-site +1
$122K - $168K/yr
Develop and execute models using codes such as MCNP, Serpent, and SCALE * Perform core lifecycle and fuel management analyses, including depletion, burnup, reactivity evolution, power distributions ...
Santa Clara, CA · On-site +1
Perform calculations and analyses in Monte Carlo based codes such as Serpent, MCNP, SCALE, and OpenMC. * Perform calculations and analyses with fast reactor deterministic codes such as DIF3D, PERSENT.
Santa Clara, CA · On-site +1
Perform calculations and analyses in Monte Carlo based codes such as Serpent, MCNP, SCALE, and OpenMC. * Perform calculations and analyses with fast reactor deterministic codes such as DIF3D, PERSENT.
Santa Clara, CA · On-site
$120 - $160/hr
Perform calculations and analyses in Monte Carlo based radiation transport codes such as MCNP, SCALE, OpenMC, and Serpent * Perform source term, activation, streaming, skyshine, and dose-rate ...
Santa Clara, CA · On-site
$120 - $160/hr
Perform calculations and analyses in Monte Carlo based radiation transport codes such as MCNP, SCALE, OpenMC, and Serpent * Perform source term, activation, streaming, skyshine, and dose-rate ...
Santa Clara, CA · On-site +1
Perform calculations and analyses in Monte Carlo based radiation transport codes such as MCNP, SCALE, OpenMC, and Serpent. * Perform source term, activation, streaming, skyshine, and dose-rate ...
Santa Clara, CA · On-site +1
Perform calculations and analyses in Monte Carlo based radiation transport codes such as MCNP, SCALE, OpenMC, and Serpent. * Perform source term, activation, streaming, skyshine, and dose-rate ...
Santa Clara, CA · On-site +1
Perform calculations and analyses in Monte Carlo based radiation transport codes such as MCNP, SCALE, OpenMC, and Serpent. * Perform source term, activation, streaming, skyshine, and dose-rate ...
Santa Clara, CA · On-site +1
Perform calculations and analyses in Monte Carlo based radiation transport codes such as MCNP, SCALE, OpenMC, and Serpent. * Perform source term, activation, streaming, skyshine, and dose-rate ...
Santa Clara, CA · On-site +1
Perform calculations and analyses in Monte Carlo based codes such as Serpent, MCNP, SCALE, and OpenMC. * Perform calculations and analyses with fast reactor deterministic codes such as DIF3D, PERSENT.
Santa Clara, CA · On-site +1
Perform calculations and analyses in Monte Carlo based codes such as Serpent, MCNP, SCALE, and OpenMC. * Perform calculations and analyses with fast reactor deterministic codes such as DIF3D, PERSENT.
Los Angeles, CA · On-site
$120 - $165/hr
Roles and Responsibilities * Assist with neutronics modeling and simulations using MCNP, Serpent, or SCALE * Support Multiphysics analyses (thermal-hydraulics, heat transfer, structural mechanics)
Los Angeles, CA · On-site
$120 - $165/hr
Roles and Responsibilities * Assist with neutronics modeling and simulations using MCNP, Serpent, or SCALE * Support Multiphysics analyses (thermal-hydraulics, heat transfer, structural mechanics)
San Leandro, CA · On-site
$105K - $155K/yr
Develop and apply Monte Carlo simulations such as MCNP, Geant4, or FLUKA for particle transport, shielding, dose assessment, and detector performance. * Design and optimize radiation shielding for ...
Quick apply
San Leandro, CA · On-site
$105K - $155K/yr
Develop and apply Monte Carlo simulations such as MCNP, Geant4, or FLUKA for particle transport, shielding, dose assessment, and detector performance. * Design and optimize radiation shielding for ...
El Segundo, CA · On-site
$106.50 - $146.48/hr
Strong experience with OpenMC, Serpent, MCNP, Attila4MC, MOOSE, RELAP, Pronghorn, GRIFFIN, or other similar nuclear software packages * Competency in distributed software development processes and ...
El Segundo, CA · On-site
$106.50 - $146.48/hr
Strong experience with OpenMC, Serpent, MCNP, Attila4MC, MOOSE, RELAP, Pronghorn, GRIFFIN, or other similar nuclear software packages * Competency in distributed software development processes and ...
Los Angeles, CA · On-site
$80K - $170K/yr
Perform criticality safety analyses, utilizing computational methods and tools (e.g., SCALE, MCNP) to assess system safety and compliance. * Ensure compliance with NRC, DOE, and ANSI/ANS criticality ...
Los Angeles, CA · On-site
$80K - $170K/yr
Perform criticality safety analyses, utilizing computational methods and tools (e.g., SCALE, MCNP) to assess system safety and compliance. * Ensure compliance with NRC, DOE, and ANSI/ANS criticality ...
El Segundo, CA · On-site
$106K - $146K/yr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or ...
El Segundo, CA · On-site
$106K - $146K/yr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or ...
Los Angeles, CA · On-site
$80K - $170K/yr
Perform criticality safety analyses, utilizing computational methods and tools (e.g., SCALE, MCNP) to assess system safety and compliance. * Ensure compliance with NRC, DOE, and ANSI/ANS criticality ...
Los Angeles, CA · On-site
$80K - $170K/yr
Perform criticality safety analyses, utilizing computational methods and tools (e.g., SCALE, MCNP) to assess system safety and compliance. * Ensure compliance with NRC, DOE, and ANSI/ANS criticality ...
El Segundo, CA · On-site
$120 - $190/hr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or ...
El Segundo, CA · On-site
$120 - $190/hr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or ...
El Segundo, CA · On-site
$104K - $125K/yr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or ...
Quick apply
El Segundo, CA · On-site
$104K - $125K/yr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Proficient in at least one of the following programming languages: Python, C++, C#, FORTRAN, or ...
Berkeley, CA · On-site
$95/hr
Experience with radiation transport tools such as MCNP, FLUKA, or Geant4 . * Experience supporting DOE, national laboratory, or similar regulated environments . * Experience with installation ...
Berkeley, CA · On-site
$95/hr
Experience with radiation transport tools such as MCNP, FLUKA, or Geant4 . * Experience supporting DOE, national laboratory, or similar regulated environments . * Experience with installation ...
Los Angeles, CA · On-site
$120K - $160K/yr
Familiarity with neutron transport software (MCNP, Serpent, SCALE) Preferred Skills & Experience: * Familiarity with Python or similar programming language * Coursework or internships involving ...
Los Angeles, CA · On-site
$120K - $160K/yr
Familiarity with neutron transport software (MCNP, Serpent, SCALE) Preferred Skills & Experience: * Familiarity with Python or similar programming language * Coursework or internships involving ...
El Segundo, CA · On-site
$106.50 - $146.48/hr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Knowledge of thermal hydraulic fundamentals. Desired Skills and Qualifications * 4+ years of ...
El Segundo, CA · On-site
$106.50 - $146.48/hr
Experience with radiation transport methods, including with codes such as MCNP/OpenMC/Serpent. * Knowledge of thermal hydraulic fundamentals. Desired Skills and Qualifications * 4+ years of ...
$68.6K - $83.4K
9% of jobs
$83.4K - $98.3K
8% of jobs
$110.5K is the 25th percentile. Wages below this are outliers.
$98.3K - $113.1K
11% of jobs
$113.1K - $128K
9% of jobs
The median wage is $135.7K / yr.
$128K - $142.8K
28% of jobs
$157.3K is the 75th percentile. Wages above this are outliers.
$142.8K - $157.7K
12% of jobs
$157.7K - $172.5K
9% of jobs
$172.5K - $187.4K
9% of jobs
$187.4K - $202.2K
4% of jobs
$202.2K - $217.1K
2% of jobs
$217.1K - $231.9K
1% of jobs
$68.6K
$143.7K
$231.9K
An MCNP job typically involves working with the Monte Carlo N-Particle (MCNP) transport code, a software tool used for simulating nuclear processes such as radiation shielding, reactor design, and dosimetry. Professionals in this role may include nuclear engineers, health physicists, and radiation safety specialists who use MCNP for modeling neutron, photon, and electron transport. The job often requires strong skills in computational physics, scripting, and data analysis, along with knowledge of nuclear physics principles.
As an MCNP specialist, your daily responsibilities generally include developing and running simulation models for radiation transport, analyzing results, and preparing detailed technical reports for project stakeholders. You'll often collaborate closely with physicists, engineers, and safety personnel to ensure that models accurately reflect physical systems and regulatory requirements. Projects may range from reactor core design and shielding analysis to medical physics applications or nuclear nonproliferation studies. The role typically involves both independent computational work and team-based problem-solving, ensuring diverse and engaging workdays.
To thrive as an MCNP (Monte Carlo N-Particle) specialist, you need a strong background in nuclear engineering, physics, or a related field, with proficiency in computational modeling and radiation transport analysis. Experience with the MCNP software package, related simulation tools, and relevant certifications such as nuclear safety or reactor physics are highly valued. Analytical thinking, problem-solving abilities, and effective communication skills help you excel in interdisciplinary project teams. These skills are crucial for ensuring accurate simulations, maintaining safety standards, and providing critical insights in research or industry settings.
The most popular types of Mcnp jobs in California are:
For Mcnp jobs in California, the most frequently searched job titles are:
The top searched job categories for Mcnp jobs in California are:
Los Angeles, CA • On-site
$120 - $165/hr
Other
This job post has expired today. Applications are no longer accepted.
As a member of the nuclear engineering team, you will become the responsible engineer for a key component of the Antares reactor design such as reactivity controls and instrumentation, radiation shielding, fuels, materials, thermal hydraulics, safety, or licensing. The ideal candidate has a mix of industry and academic experience, and has worked in a team-oriented environment to mature nuclear concepts. While you may have a specialty, you’re not afraid to operate as a generalist in a growing organization.
Roles and ResponsibilitiesNuclear Engineer I: 120k-135k
Nuclear Engineer II: 135k-165k
Your actual level and base salary will be determined on a case‑by‑case basis and may vary based on the following considerations: job‑related knowledge and skills, education, and experience.
Equal OpportunityAntares 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. § 1157, or (iv) Asylee under 8 U.S.C. § 1158, or be eligible to obtain the required authorizations from the U.S. Department of State. Learn more about the ITAR here.
