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TerraPower

Materials Engineer - Materials & Chemistry

Post Date:Mar 25, 2021Type:Full-Time
Start Date:3/25/2021Salary:
Location:US-WA-Bellevue/Washington Job Reference:426177
Skills:
 

Job Description:

TITLE:                   Senior Uncertainty Quantification Method Developer

LOCATION:          Bellevue, WA, USA       

 

TerraPower® is a nuclear energy technology company based in Bellevue, Washington. At our core, we are working to raise living standards globally. The essential factor? Energy. In 2006, the company originated with Bill Gates and a group of like-minded visionaries who evaluated the fundamental challenges to raising living standards around the world. They recognized energy access was crucial to the health and economic well-being of communities and decided that the private sector needed to take action and create energy sources that would advance global energy deployment.  TerraPower’s mission is to be a world leader in new nuclear technologies, while developing innovators and future leaders in the nuclear field. TerraPower is committed to bringing sustainable, affordable and safe energy to address global issues. As a result, the company’s activities in the fields of nuclear energy and related sciences are yielding significant innovations in the safety and economics of nuclear power, hybrid energy and medical applications.

TerraPower is seeking to hire highly motivated and forward-thinking professionals who are interested in focusing on advanced nuclear reactor research and development and influencing change within the nuclear power landscape.  TerraPower is an Equal Opportunity Employer. We do not discriminate in hiring on the basis of sex, gender identity, sexual orientation, race, color, religious creed, national origin, physical or mental disability, protected Veteran status, or any other characteristic protected by federal, state, or local law. In addition, as a federal contractor, TerraPower has instituted an Affirmative Action Plan (AAP) in an effort to proactively recruit, hire, and promote women, minorities, disabled persons and veterans.

Senior Uncertainty Quantification Method Developer 

The Senior Uncertainty Quantification (UQ) Method Developer is part of a growing team supporting the design and licensing of a reactor and is primarily responsible for the implementation and use of sensitivity and uncertainty quantification analysis methods within TerraPower’s ARMI multidisciplinary reactor design framework.

The Senior Uncertainty Quantification Method Developer may also contribute subject matter expertise to other projects under development by the TerraPower Sodium Fast Reactor (SFR) Program. Other engineering activities include, but are not limited to, contributing to the development of computational methodologies and models for safety analysis, contributing as necessary to software commercial grade dedication, participating in hazard analysis, participating to Phenomena Identification and Ranking Table (PIRT) exercises, participating to Structures, Systems and Components (SSC) classification, as well as supporting validation activities.

Under TerraPower matrix organizational structure, the Senior Uncertainty Quantification Method Developer receives administrative and technical supervision from the Nuclear Safety and Licensing Discipline Manager and direction from project managers.

Responsibilities

  • Design, implement, and maintain software tools to perform sensitivity analysis, uncertainty quantification as well as formal margin assessment and tracking within the ARMI framework.
  • Perform sensitivity and UQ analyses as needed.
  • Work in collaboration with external partners to establish the initial UQ framework and support the evolving safety and licensing needs.
  • Train and support nuclear safety and licensing engineers in the use of the sensitivity and UQ tools.
  • Review proposed code changes to ARMI framework, safety analysis plug-ins, and other TerraPower software and provide detailed feedback.
  • Produce formal documentation of software requirements, design, implementation, and testing.
  • Work with nuclear safety and licensing engineers to ensure compliance with quality standards and regulatory requirements for software.

 

Key Qualifications and Skills

  • At least 5+ years of related experience with a B.S. degree; or 3 years and a M.S. degree or equivalent experience in the nuclear field. PhD without commercial experience but with relevant expertise will be considered.
  • Experience with best estimate and Code Scaling, Applicability, and Uncertainty (CSAU) evaluation methodologies is required.
  • Good knowledge of safety analysis codes such as SAS4A/SASSYS-1, GOTHIC, RELAP5, TRACE, MELCOR, MACCS, or RADTRAD.
  • Understanding of NQA-1 requirements associated with analysis and software management as well as experience working under a quality assurance programs.
  • Experience with SFR safety analysis is highly desirable. Experience with other reactor designs can be considered when differentiating candidates.
  • Strong programming skills in any language, but knowledge of Python and Fortran is preferred.
  • Good understanding of software development life cycle and demonstrated good software development practices.
  • Knowledge of UQ methods in different areas (neutronics and nuclear data, thermal-hydraulics, fuel performance, etc.) can be considered when differentiating candidates.
  • Ability and professionalism to work within published regulatory guidelines.
  • Demonstrated strong quantitative, analytical, modeling and reporting skills.
  • The successful candidate will possess a high degree of trust and integrity, communicate openly and display respect and a desire to foster teamwork.
  • Actual position starting level and title will be determined based on assessment of qualifications.

Job Functions 

Job Functions are physical actions and/or working conditions associated with the position.  These functions may also constitute essential functions for the job which the employee must be able to fulfill, with or without accommodation.  Information provided below is to help describe the job so that the applicant has a reasonable understanding of the job duties/expectations.  An applicant's ability to perform and/or tolerate these actions and conditions will be discussed and workplace accommodations may be made on a case-by-case basis following an individualized assessment of the applicant and other considerations, including but not limited to any governing safety standards.

  • Motor Abilities: Sitting for extended periods, bending/stooping, grasping/gripping, fine motor control (hands)
  • Physical exertion and/or requirements: Minimal, with ability to safely lift up to 25 pounds
  • Repetitive work: Prolonged
  • Special Senses: Visual and audio focused work
  • Work Conditions: Stairs, typing/keyboard, standard and/or sitting working environment of >8 hrs./day
  • Travel required  0-5%

TerraPower’s technology is controlled for export by various agencies of the U.S. Government.  TerraPower must evaluate applicants who are foreign nationals (other than asylees, refugees, or lawful permanent residents) in accordance with U.S. Government export control requirements.  To facilitate TerraPower’s export control reviews, you will be asked as part of the application process to identify whether you are a U.S. Citizen or national, asylee, refugee, or lawful permanent resident of the United States.  Government export authorization approval times vary.  Based on the business needs for a particular position, TerraPower may not consider a foreign national from a country if it is impracticable to obtain timely Government export approval.  

Please visit www.terrapower.com to apply





Contact Information
TerraPower
Name: Rimal


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