Nuclear Methods Engineer
$52 - $85 per hourSystem One
Job Title: Nuclear Methods Engineer
Location: Bellevue, WA
Type: Contract
Compensation: $52.00 - $85.00
Work Model: Remote – offsite
Hours: 40.0
Overview
System One is seeking a highly motivated Nuclear Methods Software Engineer for a yearlong, fully remote contract position. In this role, you will support the nuclear methods team:
Responsibilities
- Create formal documentation of nuclear methods software requirements, design, implementation, and testing in support of licensing our client’s reactors
- Update, improve, and/or create software to satisfy all licensing requirements during the Validation and Verification (V&V) process
- Incorporate additional 3rd-party programs in our simulation ecosystem as necessary to support licensing
- Design and execute sensitivity studies to understand the effects and validity of various modeling assumptions, including meshing, physics coupling, transport options, cross section preparation, fission product models, spatial kinetics, etc., and adjust methods as necessary
- Train and support reactor designers and developers in the use of the design software suite
- Build and apply methods to assess the propagation of uncertainty and their effect on safety margins
- Enhance engineering team's ability to build models and make meaningful conclusions from simulation output through input tools, visualization, reports, etc.
- B.S. degree in Nuclear Engineering with 5-20 years of experience
- M.S. degree in Nuclear Engineering with 3-15 years of experience
- Ph.D. degree in Nuclear Engineering with 2-10 years of experience
- Fast reactor physics and design intuition
- Experience in nuclear design/analysis methodologies including criticality, flux/power distributions, fuel management optimization, reactivity coefficients, shielding, activation, control rod worth, detector response, and uncertainty analysis
- Knowledge of reactor physics analysis methods (deterministic and stochastic particle transport, isotopic depletion, perturbation theory, nuclear data, kinetics, etc.)
- Experience with nuclear engineering software such as DIF3D, MC2, PARTISN, MCNP, Serpent, SCALE, PARCS, APA, CASMO, DRAGON, ARMI, etc. preferred
- Strong computational expertise and programming skills in scientific computing languages (Python, C++, Fortran bonus)
- Proven ability to automate simulation tools and integrate software
- Experience with software development tools (IDEs, version control, debuggers, documentation tools)
- Knowledge of nuclear methodology interaction with the NRC under an ASME NQA-1 compliant QA environment preferred
- Good understanding of numerical methods and applied mathematics (PDEs, stability, statistics, analysis, dynamics)
- Strong technical documentation skills
- Ability to meet aggressive schedules and deliver consistently
- Self-motivated with a passion for software best practices and teamwork
- Excellent verbal communication skills
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.
#M-
#LI-
$69 - $115 per hour
Job Title: Senior Safety Methods Engineer (Accident/Transient Methods) Type: Contract (yearlong) Compensation: $69 - $115 hourly Contractor... .... Key Qualifications and Skills M.S. or Ph.D. in nuclear engineering, or other relevant engineering degree, with at...SuggestedHourly payContract workTemporary workFor contractorsLocal areaRemote work$46 - $77 per hour
...Job Title: Senior Safety Analysis Engineer Location: Bellevue, WA Type: Contract... ...Responsibilities: Develop and update the nuclear power plant commissioning test and/or... ...Experience with SFR safety analysis or methods is highly desirable Demonstrated strong...SuggestedHourly payContract workZero hours contractLocal areaRemote work$56 - $95 per hour
...Job Title: Nuclear Engineering Program Developer Location: Bellevue, WA Type: Contract Compensation: $56.00 - $95.00 per hour Work... ...of a nuclear facility. Apply engineering principles, methods, and tools to the design of nuclear and industrial facilities...SuggestedHourly payContract workTemporary workFor contractorsLocal areaRemote workShift work$69 - $115 per hour
...Job Title: Nuclear Plant Integration Engineer (Test Abstracts and Specifications) Location: Bellevue, WA Type: Contract Compensation: $69.00 - $115.00 per hour Work Model: Remote – offsite Hours: 40.0 Overview System One is seeking an experienced Nuclear...SuggestedHourly payFull timeContract workLocal areaRemote work$56 - $95 per hour
...Job Title: Nuclear Plant Engineering Program Specialist Location: Bellevue, WA Type: Contract (yearlong) Compensation: $56.00 - $95.00 Contractor Work Model: Fully Remote Hours: 40.0 Overview System One is hiring a Nuclear Operations Specialist and...SuggestedContract workTemporary workFor contractorsLocal areaRemote work$37 - $74 per hour
...Job Title: Senior Safety Methods Engineer Location: Bellevue, WA Type: Contract, 12 months Compensation: $37.00 - $74.00 Contractor... ...reproducibility. Requirements: ~ Degree in Mechanical, Nuclear, Chemical Engineering, or similar fields. ~3+ years of...Contract workTemporary workFor contractorsLocal areaRemote work- ...Job Title: Safety Analysis Engineer, Nuclear Location: Bellevue, WA Type: Contract, 12 months Contractor Work Model: Remote Overview... ...reporting, and collaborates across engineering teams on methods development, V&V/benchmarking, and uncertainty/sensitivity studies...Contract workTemporary workFor contractorsLocal areaRemote work
$69 - $115 per hour
...Nuclear Engineering Plant Program Specialist / Nuclear Procedure Writer Job Type: Contract - Remote Schedule: 40 hours/week System One is seeking an experienced Nuclear Engineering Plant Program Specialist / Nuclear Procedure Writer to support the development...Contract workWork at officeLocal areaRemote work$69 - $115 per hour
...Job Title: Nuclear I&C Design Engineer Location: Bellevue, WA Type: Contract Work Model: Remote – offsite Hours: 40.0 Responsibilities Interface and support geographically diverse and international design team members to develop supporting design documentation...Contract workLocal areaRemote work- ...Location: US - WA - Redmond Onsite 5 days a week. Job Title: Core Engineering - Test Engineer II Job Description: Title: Acoustic Test... ...and aptitude to learn real-ear / insertion-gain measurement methods - Comfort operating measurement hardware — audio interfaces,...
$52 - $85 per hour
Job Title: Component Engineer, Nuclear Type: Contract Compensation: $52 - $85 hourly Contractor Work Model: Remote Position Overview: We are seeking an experienced and detail-oriented Component Engineer to support component design efforts in the nuclear...Hourly payContract workFor contractorsLocal areaRemote work- ...edkey is seeking an Entry Level Power Engineer — Associate Project Management to support a confidential client in IT with energy-related projects. The role is full-time, hybrid, anchored to a Bellevue, WA hub, combining project coordination, basic technical documentation...Full time
- ...Job Title: Primary Heat Transfer (PHT) Component Engineer Location: Bellevue, WA Type: Contract Work Model: Remote – offsite... ...Transfer Component Engineer to support the development of advanced nuclear power systems. This position will interface with engineering...Contract workTemporary workFor subcontractorLocal areaRemote work
$125k - $150k
...partners and clients, we practice strategy, design, development, and engineering to harness the power of technology and create what's next.... ...(including VLA models) when task complexity makes scripted methods impractical. Develop, deploy and maintain the data engine pipeline...Full time$254k - $336k
...ABOUT THE JOB At Anduril, our Software Engineers are at the forefront of defense technology, crafting high-impact, cutting-edge solutions that redefine innovation. You'll dive into a diverse range of projects, partnering with brilliant minds across disciplines to...Full timeWork experience placementImmediate start- ...Job Description Job Description We are looking for a Process Improvement/Re-Engineering Analyst to support a Long-term Contract engagement in Bellevue, Washington. This role will evaluate end-to-end operational workflows, partner closely with frontline and cross-functional...Long term contract
$121.02k - $169.43k
...etc) Minimum Qualifications: ~ Bachelor of Science in Material Science, Mechanical, Manufacturing, Chemical, Aerospace Engineering or relevant field from ABET accredited school. ~5+ years experience with materials and processes used in the aerospace, or other...Permanent employmentTemporary workLocal areaFlexible hours- ...tailored solutions that drive growth, operational excellence, and long-term client success. Position: Tech Transfer Process Engineer Location: Washington Duration: Long Term Job Overview We are seeking a Tech Transfer Process Engineer to...
- Job Description Job Description BrainChild Bio is seeking to hire a Process Enginee r to add to our growing team. This role will provide critical support to technology transfer, process development, and manufacturing activities of BrainChild programs. This will ...Remote work
- ...Fusion Life Sciences Technologies ( ) is a WBE-certified Healthcare Staffing and Engineering Services provider supporting industries including Pharma, Medical Devices, Aeronautical, Supply Chain, Heavy/Light Industrial, Food & Beverage, and Automotive. We proudly partner...Contract workTemporary workFor contractorsRemote work
$110.5k - $160k
...Software Development Engineer I Do you want to solve real customer problems through innovative technology? Do you enjoy working on scalable services in a collaborative team environment? Do you want to see your code directly impact millions of customers worldwide? At...InternshipWorldwideFlexible hours$132.98k - $199.47k
...Job Description Position Title: Staff Cybersecurity Engineer - Aircraft Power Systems Position Description: Protingent Staffing... ...Assessment: Apply knowledge of airworthiness security processes, methods, and considerations to offer logical recommendations and...Remote workWork from homeFlexible hours2 days per week3 days per week- ...our products. As part of that collaboration, we are able to self-select how best to add value to the projects we work on. Thermal engineers typically work with ID and ME to design cooling systems that help define the architecture and performance of our hardware products...
$137.3k - $185.7k
...refugee or granted asylum.Key job responsibilitiesThe Sr Process Engineer for ProdOps Continuous Improvement drives high-impact... ...reductions and corrective actions.- Apply advanced statistical methods — regression, ANOVA, DOE, and SPC — to verify root causes and validate...Permanent employmentFlexible hours$97.22k - $129.77k
...Enfrasolutions is seeking a Technical Services Engineer (TSE) I in Seattle, WA, who will support integrated solutions project delivery, providing technical authority in energy conservation and collaborative project execution. The candidate will lead energy conservation...$191k - $253k
...ABOUT THE ROLE As a Senior Software Engineer in the Manufacturing Test organization, you will join a software development team tasked... ...you’ll need to think creatively and continuously improve our methods of automation, throughput, user interfaces, and data analytics....Full timeWork experience placementImmediate start$140k - $210k
...next-generation aircraft, XBAT, like no other—one that will push the boundaries of innovation and performance. As a Component Engineer at Shield AI, you’ll own the selection, qualification, and lifecycle management of electronic components across our products. You...Full timeTemporary workPart timeWorldwide$139k - $204k
...Founded in 2017, CoreWeave became a publicly traded company (Nasdaq: CRWV) in March 2025. Learn more at About the Role Production Engineering ensures CoreWeave's cloud delivers world-class reliability, performance, and operational excellence. We are hiring a Senior...Permanent employmentFull timeTemporary workCasual workWork at officeFlexible hours- ...Job Description Job Description Are you ready to bring your electrical engineering expertise to a team that values collaboration, innovation, and ownership? At TKDA, we’re not just another engineering firm—we’re 100% employee-owned, which means every team member has...For contractorsNight shift
$21 - $36 per hour
...digital technologies. What you'll do: Focus areas for this internship will be in Grid - Software Solutions within Services and Engineering functions. In this position, the interns will work on solving interesting problems related to Wholesale Energy Markets. What...Permanent employmentFull timeSummer workInternshipWork at officeRelocation package
Do you want to receive more vacancies?
Subscribe and receive similar vacancies to Nuclear Methods Engineer. Be the first to apply!




