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RELAP5 Analyst and Developer

Idaho National Laboratory

Location: US
Position Type:
Rqd Education:
Rqd Experience: 2 - 5 years
Date Posted: December 5, 2022
Reference Code: 18802
Does a career focused on changing the world's energy future intrigue you? If so, we might have just the opportunity you're looking for!
Idaho National Laboratory's (INL) Thermal Fluid Systems Methods and Analysis group is seeking forward-thinking professionals interested in exploring a career as a RELAP5 Analyst and Developer.
Our team works an on-site 9x80 schedule located at our Research Education Campus with every other Friday off!
Responsibilities Include:
The position involves thermal-hydraulic analysis of reactor systems using the RELAP5-3D system code. Specific requirements of the position include: Develop RELAP5 thermal-hydraulics input models of reactors and experiment systems, Conduct analyses to evaluate reactor system performance during normal and off-normal conditions, Conduct RELAP5-3D development activities related to the identification and correction of code errors and the implementation of new models, Conduct RELAP5-3D validation studies to determine code applicability and accuracy, Support experiments to generate RELAP5-3D validation data, Conduct safety analyses and reviews for INL reactors (e.g., ATR and TREAT), Contribute to RELAP5-3D training material, Support review and update of RELAP5-3D software quality assurance documentation Prepare reports documenting model development, analyses, and validation studies, and Serve as a RELAP5-3D Technical Expert for other INL organizations/projects. Requires nuclear engineering application and knowledge to apply knowledge of reactor systems, nuclear safety requirements, the RELAP5-3D computer code, thermal-hydraulic phenomena related to heat transfer, fluid flow, and reactor kinetics.


Minimum Requirements:
  • Bachelor's degree or Master's degree in Nuclear Engineering, Mechanical Engineering or equivalent engineering degree
  • Software development coursework and/or working experience
  • This position requires the ability to obtain and maintain a Department of Energy "Q" clearance, which requires US Citizenship.
Preferred Requirements:
  • Working knowledge of nuclear reactor thermalhydraulics and proficient in using Linux, FORTRAN, Python, and C
  • Previous working experience with RELAP5 is highly desirable
Job Information
  • Salary Grade 200 ($79,140 - $130,572)
  • Chosen applicants are required to show a demonstrated commitment to valuing diversity and contributing to an inclusive working environment.
  • TDP: This is a testing designated position; you will be required to submit to a pre-employment drug screen and periodic drug testing throughout the term of your employment.
INL Overview:
INL is a science-based, applied engineering national laboratory dedicated to supporting the U.S. Department of Energy's mission in nuclear energy research, science, and national defense. With more than 5,000 scientists, researchers, and support staff, the laboratory works with national and international governments, universities and industry partners to discover new science and development technologies that underpin the nation's nuclear and renewable energy, national security, and environmental missions.
INL Mission:
Our mission is to discover, demonstrate and secure innovative nuclear energy solutions, other clean energy options and critical infrastructure.
INL Vision:
Our vision is to change the world's energy future and secure our nation's critical infrastructure.
Selective Service Requirements:
To be eligible for employment at INL men born after December 31, 1959 must have registered with the Selective Service System (SSS). For more information see www.sss.gov.
Equal Employment Opportunity:
INL is an Equal Employment Opportunity (EEO) employer. It is the policy of INL to provide EEO to all qualified applicants without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, protected veteran or disabled status, or genetic information. Women and People of Color are strongly encouraged to apply.
Reasonable Accommodation:
We will ensure that individuals with disabilities are provided reasonable accommodation to participate in the job application or interview process, to perform essential job functions, and to receive other benefits and privileges of employment. Please contact us to request accommodation.
Other Information:
When applying to positions please provide your resume and answer all questions on the following screens. Applicants, who fail to provide a resume or answer the questions, may be deemed ineligible for consideration.
INL does not accept resumes from third party vendors unsolicited.
Benefits & Salary:
We have an extremely competitive salary structure, robust relocation package, and a phenomenal benefits package. For more information, please visit: https://www.inl.gov/careers/benefits-overview
About this Employer

Part of the U.S. Dept. of Energy’s complex of national laboratories, INL performs work in each of the strategic goal areas: energy, national security, science & environment. INL is the nation’s leading center for nuclear energy research & development.