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Remote Nuclear Criticality Safety Engineer Jobs in Bothell, WA

System One

Nuclear Methods Engineer

Bellevue, WA · Remote

$52 - $85/hr

Remote - offsite Hours: 40.0 Overview System One is seeking a highly motivated Nuclear Methods ... Build and apply methods to assess the propagation of uncertainty and their effect on safety margins

System One

Nuclear Methods Engineer

Bellevue, WA · Remote

$52 - $85/hr

Remote - offsite Hours: 40.0 Overview System One is seeking a highly motivated Nuclear Methods ... Build and apply methods to assess the propagation of uncertainty and their effect on safety margins

System One

Nuclear Methods Engineer

Bellevue, WA · Remote

$52 - $85/hr

Remote - offsite Hours: 40.0 Overview System One is seeking a highly motivated Nuclear Methods ... Build and apply methods to assess the propagation of uncertainty and their effect on safety margins

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Remote Nuclear Criticality Safety Engineer information

See Bothell, WA salary details

$119.1K

$172.7K

$207.9K

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

As of Aug 14, 2026, the average yearly pay for remote nuclear criticality safety engineer in Bothell, WA is $172,684.00, according to ZipRecruiter salary data. Most workers in this role earn between $163,200.00 and $180,000.00 per year, depending on experience, location, and employer.

What is the difference between Remote Nuclear Criticality Safety Engineer vs Remote Nuclear Safety Analyst?

AspectRemote Nuclear Criticality Safety EngineerRemote Nuclear Safety Analyst
CredentialsTypically requires certifications like ANSI/ANS-8, engineering degrees, and nuclear safety trainingOften requires similar certifications, safety training, and analytical skills
Work EnvironmentPrimarily in nuclear facilities, safety reviews, and compliance documentationInvolves safety assessments, regulatory reporting, and risk analysis, often remotely
Industry UsageCommonly employed in nuclear power plants, research reactors, and fuel facilitiesUsed across nuclear regulatory agencies, consulting firms, and industry operators

The main difference is that Remote Nuclear Criticality Safety Engineers focus specifically on preventing nuclear chain reactions, requiring specialized criticality safety expertise, while Remote Nuclear Safety Analysts handle broader safety assessments and regulatory compliance. Both roles require strong technical knowledge and safety certifications, but their focus areas and daily tasks differ within the nuclear industry.

What does a remote nuclear criticality safety engineer do?

A Remote Nuclear Criticality Safety Engineer is responsible for ensuring that nuclear processes and materials remain within safe limits to prevent accidental criticality incidents, which can release dangerous levels of radiation. Working remotely, they analyze facility designs, review operational procedures, and assess safety systems to ensure compliance with regulatory standards. They also provide technical guidance, perform risk assessments, and develop safety documentation to support nuclear operations. Their work is essential for maintaining the safe handling, storage, and transport of fissile materials in nuclear facilities.

What are some unique challenges faced by remote nuclear criticality safety engineers, and how can they effectively collaborate with onsite teams?

Remote Nuclear Criticality Safety Engineers often face the challenge of maintaining clear and timely communication with onsite personnel, especially when assessing real-time safety concerns or reviewing facility changes. To be effective, they rely heavily on detailed documentation, virtual meetings, and remote access to site data and modeling software. Building strong relationships with onsite engineers and safety staff is essential for seamless collaboration and ensuring all safety protocols are consistently followed. Proactive communication and regular check-ins help bridge the gap created by physical distance and support thorough safety analysis and compliance.

What are the key skills and qualifications needed to thrive as a remote nuclear criticality safety engineer?

To thrive as a Remote Nuclear Criticality Safety Engineer, you need a strong background in nuclear engineering or physics, criticality safety analysis, and typically a relevant degree or professional certification. Familiarity with industry-standard codes (like ANSI/ANS-8 series), Monte Carlo simulation tools (such as MCNP), and regulatory compliance systems is essential. Strong analytical thinking, problem-solving skills, and clear communication are vital for collaborating remotely and ensuring regulatory adherence. These skills and qualifications are crucial for maintaining nuclear safety, preventing criticality incidents, and ensuring accurate risk assessments in remote work environments.

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Remote Nuclear Criticality Safety Engineer jobs near you

Safety Analysis Engineer, Nuclear

System One

Bellevue, WA • Remote

Contractor

Medical, Dental, Vision, Life, Retirement

Re-posted 27 days ago

Job description

Job Title: Safety Analysis Engineer, Nuclear Location: Bellevue, WA Type: Contract, 12 months Contractor Work Model: Remote Overview This contract Safety Analysis Engineer role performs deterministic nuclear safety analysis and transient/accident modeling (RELAP5-3D or similar) to support U.S. NRC licensing submittals. The engineer develops and documents system models, analyzes AOOs/DBEs/DBAs and licensing-basis events, supports FSAR-style reporting, and collaborates across engineering teams on methods development, V&V/benchmarking, and uncertainty/sensitivity studies.

Responsibilities

  • Perform deterministic safety analysis using RELAP5-3D code for the Natrium sodium fast reactor
  • Analyze design basis accidents (DBAs) and licensing basis events (LBEs) to support reactor licensing with US NRC
  • Model and integrate various plant systems within safety analysis computer codes
  • Develop safety analysis reports, including the Final Safety Analysis Report (FSAR)
  • Collaborate with cross-functional teams on core and reactor SSC requirements and licensing documentation
  • Contribute to safety method development, code assessment, scaling analysis, and validation activities
  • Maintain documentation of models and analysis results
  • Conduct engineering reviews of analysis and design deliverables
  • Assess plant transient benchmark tests and perform relevant benchmark calculations
  • Support implementation of software capabilities for transient and accident analysis

Requirements

  • Extensive experience in nuclear safety analysis and reactor system modeling
  • Proficiency with safety analysis software such as RELAP5, TRACE, TRAC, SAS4A/SASSYS-1, or similar
  • Experience in transient and accident analysis for NRC submittals (e.g., Chapter 15 FSAR)
  • Strong knowledge of nuclear systems thermal-hydraulics, reactor physics, and transient phenomena
  • Familiarity with nuclear reactor instrumentation, control systems, and safety regulation compliance
  • Degree: B.S. with 10+ years or M.S./Ph.D. with 5-7+ years of nuclear engineering or relevant field
  • Demonstrated analytical, modeling, and reporting skills
  • Experience working in multidisciplinary teams and under quality assurance programs (NQA-1)
  • Strong software engineering skills in Python, Fortran, C++, or similar are a plus

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

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