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Manager Nuclear Criticality Safety Engineer Jobs

Amentum is seeking a Nuclear Criticality Safety Engineer based out of our Richland, WA office.Candidates will obtain site specific Nuclear Criticality Safety (NCS) Analyst Qualification to support ...

Criticality Safety Engineer

Renton, WA · On-site

$105 - $170/hr

The team member selected will support criticality safety management and oversight activities ... Nuclear criticality safety-related DOE orders and regulations compliance support, including Hanford ...

We are currently seeking a Nuclear Criticality Safety Engineer to support our AIKEN, SC office out at the Savannah River Site (SRS). The Engineer will provide engineering support for U.S. Department ...

The Engineer will provide engineering support for U.S. Department of Energy (DOE) facilities and ... Candidates will obtain site specific Nuclear Criticality Safety (NCS) Analyst Qualification to ...

$57 - $96/hr

Overview We are seeking a Nuclear Criticality Safety Engineer Energy, to join our Team in our Oak ... Supports the execution of Integrated Safety Management System guiding principles and core functions ...

The Engineer will provide engineering support for U.S. Department of Energy (DOE) facilities and ... Candidates will obtain site specific Nuclear Criticality Safety (NCS) Analyst Qualification to ...

Amentum is seeking a Nuclear Criticality Safety Engineer based out of our Richland, WA office. Candidates will obtain site specific Nuclear Criticality Safety (NCS) Analyst Qualification to support ...

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Manager Nuclear Criticality Safety Engineer information

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$106.5K

$154.5K

$186K

How much do manager nuclear criticality safety engineer jobs pay per year?

As of Sep 7, 2026, the average yearly pay for manager nuclear criticality safety engineer in the United States is $154,474.00, according to ZipRecruiter salary data. Most workers in this role earn between $146,000.00 and $161,000.00 per year, depending on experience, location, and employer.

What is the difference between Manager Nuclear Criticality Safety Engineer vs Nuclear Criticality Safety Engineer?

AspectManager Nuclear Criticality Safety EngineerNuclear Criticality Safety Engineer
CertificationsTypically requires certifications like ANSI/ANS-8.19, NEBOSH, or equivalentSame certifications, often entry to mid-level
Work EnvironmentLeads teams, manages safety programs, oversees compliancePerforms technical safety assessments, analyzes criticality risks
Employer & Industry UsageUsed in nuclear facilities, government agencies, and large energy companiesCommonly employed in nuclear power plants, research labs, and regulatory bodies

The Manager Nuclear Criticality Safety Engineer focuses on leadership, team management, and program oversight, while the Nuclear Criticality Safety Engineer concentrates on technical safety analysis and risk assessment. Both roles require similar certifications and are integral to nuclear safety, but the manager role emphasizes coordination and compliance management.

What cities are hiring for Manager Nuclear Criticality Safety Engineer jobs?

Cities with the most Manager Nuclear Criticality Safety Engineer job openings:

What are the most commonly searched types of Nuclear Criticality Safety Engineer jobs?

The most popular types of Nuclear Criticality Safety Engineer jobs are:

What states have the most Manager Nuclear Criticality Safety Engineer jobs?

States with the most job openings for Manager Nuclear Criticality Safety Engineer jobs include:

Lead, Nuclear Criticality Safety

General Matter

Los Angeles, CA • On-site

Full-time

Medical, Dental, Vision, Retirement

Posted 6 days ago


Job description

About the Company
General Matter is enriching uranium in America.
Our goal is to design, build, and operate the world's lowest-cost enrichment services in the United States.
Our mission is to restore America's ability to produce nuclear fuel-fuel that will power AI, advanced manufacturing, critical industries, and the next generation of nuclear reactors.
Ultimately, our work will help power national ambitions and enable a high-energy society.
We were incubated by Founders Fund, like Anduril and Palantir before us, and are backed by top-tier investors. Our lean, world-class team of engineers and operators is applying a first-principles approach to solving the problem of nuclear fuel production.
We are a mission-driven company with a culture of urgency, accountability, and transparency.
Help us build a high-energy society by making the cleanest, safest form of baseload energy the most affordable.
About This Role
As Lead Nuclear Criticality Safety Engineer at General Matter, you'll build and lead the criticality safety program for a Part 70 fuel cycle facility from the ground up. Your criticality safety evaluations (CSEs) are a foundational input into our Integrated Safety Analysis (ISA), meaning the double-contingency approach, methodology, and technical judgment you establish now will shape how this facility operates for decades. This is a rare opportunity to set the criticality safety strategy for a next-generation enrichment facility rather than inherit one - and to do it at a company where your technical decisions have a direct line to whether we get licensed and operating on schedule.
We're especially looking for engineers who've done this before at an NRC-licensed Part 70 facility, or who bring deep DOE criticality safety experience and are ready to translate that rigor into the NRC licensing framework. If you've spent your career fitting criticality safety work into someone else's program and are ready to build the program instead, we encourage you to apply and lead this work at General Matter.
Responsibilities
  • Own the criticality safety program end-to-end: set methodology, double-contingency strategy, and technical direction for the site.
  • Develop and maintain nuclear criticality safety evaluations (CSEs) for processes involving fissile materials, and ensure CSE outputs are correctly integrated into the ISA as a foundational safety basis input.
  • Perform criticality safety analyses using computational methods and tools (e.g., SCALE, MCNP) to assess system safety and regulatory compliance.
  • Serve as the primary technical point of contact on criticality safety matters during NRC licensing interactions, license amendments, and inspections.
  • Ensure compliance with NRC, DOE, and ANSI/ANS criticality safety standards and regulations, translating DOE-derived methodologies into the NRC regulatory framework where applicable.
  • Mentor and provide technical review for other criticality safety engineers, setting the technical bar for the team as it grows.
  • Conduct audits, inspections, and reviews of facility operations to identify and mitigate criticality safety risks.
  • Collaborate with engineering, operations, and regulatory teams to implement effective safety measures.
  • Provide technical guidance and training to personnel on criticality safety principles and procedures.
  • Investigate criticality safety incidents and develop corrective actions as necessary.
  • Maintain accurate documentation and records to support audits and regulatory reviews.

Basic Qualifications
  • Evidence of exceptional ability (prior projects, portfolio of work, completed products, etc.).
  • 8+ years of nuclear criticality safety experience, including direct authorship of criticality safety evaluations at a DOE or NRC-licensed facility.
  • Bachelor's degree in Nuclear Engineering, Physics, or a related field.
  • Strong knowledge of criticality safety regulations, standards, and methodologies (e.g., 10 CFR Part 70, ANSI/ANS-8 series), and the ability to bridge DOE and NRC frameworks where they differ.
  • Proficiency in computational tools such as SCALE, MCNP, or similar software.
  • Ability to perform trade studies and make clear recommendations using first principles and engineering fundamentals, even with partial information.
  • Strong verbal and written communication skills, with the ability to convey technical information to regulators, operators, and leadership alike.
  • Ability to obtain and maintain required security clearance and access authorization.

Preferred Skills and Experience
  • Direct experience standing up or significantly revising a criticality safety program at an NRC-licensed Part 70 facility.
  • DOE weapons complex or national laboratory experience (e.g., Y-12, Savannah River, Los Alamos, Pantex, Idaho National Laboratory) with demonstrated ability to translate that experience into an NRC licensing context.
  • Certification as a Nuclear Criticality Safety Engineer (e.g., ANSI/ANS-8.24).
  • Professional Engineer (PE) license, or ability to obtain one.
  • Advanced degree in Nuclear Engineering, Physics, or a related field.
  • Experience in a fast-paced engineering environment or a highly technical role requiring a resourceful, entrepreneurial approach to complete tasks within tight timeframes or budget constraints.

Additional Requirements
Ability to work extended hours and weekends as necessary.
Equal Opportunity Employer
General Matter is an Equal Opportunity Employer; employment with General Matter is governed on the basis of merit, competence and qualifications and will not be influenced in any manner by 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.
Compensation and Benefits
The base salary range for this role is $160,000-$230,000 annually.
Compensation bands are determined by role, level, location, and alignment with market data. Individual level and base pay is determined on a case-by-case basis and may vary based on job-related skills, education, experience, technical capabilities and internal equity. Please note that the stated salary range is an estimate and may be adjusted based on market conditions, business needs, or other factors. In addition to base salary, for full-time hires, you may also be eligible for long-term incentives, in the form of stock options, and access to medical, vision & dental coverage as well as access to a 401(k) retirement plan.