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Senior Safety Methods Development Engineer

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System One is seeking a highly motivated Senior Safety Methods Development Engineer to support the design and licensing of the Natrium Demonstration reactor for a DIRECT HIRE position in Bellevue, WA.

The Senior Safety Method Development Engineer may also contribute subject matter expertise to other projects under development by the Sodium Fast Reactor (SFR) Program. Other engineering activities include, but are not limited to, performing accident analyses, contributing to software commercial grade dedication, participating in hazard analysis, participating to Structures, Systems and Components (SSC) classification, as well as performing verification and validation activities.


-Develop analytical and computational models in collaboration with safety analysis engineers
-Develop methodologies using a graded approach to the Evaluation Model Development and Assessment Process (EMDAP) as needed. This also include activities such as leading the development of Phenomena Identification and Ranking Table (PIRT) as necessary, develop evaluation model requirements, create evaluation model development plan, leading code selection process, etc.
-Collaborate with safety verification and validation engineers to develop assessment bases (benchmark, identify applicable tests, etc.) and asses the evaluation model.
-Work with an interdisciplinary team of engineers to establish core and reactor SSC functional, performance, safety, and quality requirements as well as support the overall design.
-Establish and maintain methodology documentation.
-Perform engineering reviews of analyses and other engineering design media.
-Contribute, as needed, to the implementation of capabilities required for transient and accident analysis within the company's software framework.

Key Qualifications and Skills

-Knowledgeable of nuclear systems thermal-hydraulic fundamentals as well as reactor dynamics and transient phenomena.
-Significant experience with safety analysis codes such as SAS4A/SASSYS-1, GOTHIC, RELAP5, TRACE, MELCOR, MACCS, RADTRAD or equivalent.
-Familiarity with nuclear design, regulatory requirements, and risk-informed performance-based technology guidance for Non-Light Water Reactors is required.
-Familiarity with EMDAP and Regulatory Guide 1.203 is required.
-Experience with SFR safety methods is highly desirable. Experience with other reactor designs can be considered when differentiating candidates.
-Demonstrated strong quantitative, analytical, modeling and reporting skills.
-Understanding of NQA-1 requirements associated with analysis and software management as well as experience working under a quality assurance programs.
-Experience in working in multi-disciplinary engineering teams to address engineering challenges.
-Strong software engineering skills in any language is a plus.
-The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork. 
-The applicant must be willing to eventually relocate to Bellevue, WA area.
-M.S. or Ph.D. in nuclear engineering, or other relevant engineering degree, with at least 5 years of experience in the nuclear field.
-The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork

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