Position Summary
Provides structural and mechanical analysis support for elevated-temperature nuclear component design evaluations in accordance with ASME BPVC Section III, Division 5. This position is remote-eligible, with periodic coordination calls with technical leads expected; no mandatory on-site presence is required. Engagement duration and hours will be determined based on candidate availability and final scope assignment. Performs code-compliance analysis supporting the structural integrity of elevated-temperature nuclear components, including load-controlled stress evaluations, stress classification and linearization, and finite element model development. Supports the preparation of code-compliant, independently reviewable calculation packages and contributes to the technical rigor underpinning the design and safety basis of next-generation nuclear components.

MUST BE US CITIZEN.

Work Location and Schedule:
* Location: Candidate will work remotely, with the ability to come onsite as needed. The primary onsite location is the Engineer Research and Office Building (EROB) at the Idaho National Laboratory (INL).
* Schedule: EROB operates on a 9/80 compressed work schedule. Employees work eight nine-hour days and one eight-hour day over each two-week period, totaling 80 hours, with every other Friday off. Standard hours fall between 7:00 a.m. and 5:00 p.m. Mountain Time, with start times of 7:00 or 8:00 a.m.
Essential Job Functions and Responsibilities: (Knowledge, skills, and behaviors required for this position.)
* Support structural/mechanical analysis in accordance with ASME BPVC Section III, Division 5 code requirements.
* Perform load-controlled stress evaluations, stress classification, and stress linearization for elevated-temperature nuclear components.
* Develop finite element analysis (FEA) models, including 3D model development, mesh convergence studies, and boundary condition documentation, using tools such as ANSYS, Abaqus, or equivalent.
* Produce code-compliant, independently reviewable calculation packages and supporting reports.
* Perform creep-fatigue damage evaluation, including time-dependent creep and fatigue interaction, usage factors, and hold-time effects, per Subsection HBB / Mandatory Appendix HBB-I.
* Conduct strain limits, ratcheting, and incremental collapse assessments.
* Evaluate elevated-temperature buckling, including thermal and creep buckling.
* Collaborate with technical leads and senior engineers to review analysis results and ensure technical accuracy.
* Support evaluation of weld strength reduction factors, dissimilar metal weld assessments, or bolted joint fatigue/relaxation analysis under Division 5, as needed.
* Apply working knowledge of Section III, Division 5 or demonstrate transferable experience from Section III Division 1 or Section VIII with elevated-temperature exposure.
* Reference Section II, Part D material allowables as applicable to analysis tasks.
* Participate in periodic technical coordination calls to align on scope, progress, and findings.
* Other duties as assigned by the technical lead or engineering manager.

Knowledge/Skills/Abilities
* Working knowledge of ASME BPVC Section III, Division 5 nuclear component design requirements.
* FEA experience, including 3D model development, mesh convergence, and boundary condition documentation.
* Ability to apply general code rules to specific analysis problems to produce technically sound, defensible results.
* Ability to combine analytical results to form conclusions supporting code-compliance determinations.
* Ability to listen to and understand technical information and ideas presented through discussion with technical leads and stakeholders.
* Ability to communicate analysis results and technical findings clearly, in writing and verbally.

Education, Credentials, and Work Experience:
Required
* Candidates must possess a Bachelor of Science degree in mechanical engineering or a directly related field, with a minimum of 8 years of relevant experience; or a Master of Science degree in mechanical engineering or a directly related field, with a minimum of 6 years of relevant experience. The qualifying degree must be from an ABET-accredited program.
* Working knowledge of ASME BPVC Section III, Division 5 (or demonstrated transferable experience in Section III Division 1 or Section VIII with elevated-temperature exposure).
* FEA experience (ANSYS, Abaqus, or equivalent), including 3D model development, mesh convergence, and boundary condition documentation.
* Hands-on experience with creep-fatigue damage evaluation, including time-dependent creep and fatigue interaction, usage factors, and hold-time effects, per Subsection HBB / Mandatory Appendix HBB-I.
* Experience with strain limits, ratcheting, and incremental collapse assessment.
* Experience with elevated-temperature buckling, including thermal and creep buckling.
* Demonstrated ability to produce code-compliant, independently reviewable calculation packages.
* Experience with weld strength reduction factors, dissimilar metal weld assessment, or bolted joint fatigue/relaxation analysis under Division 5.
* Prior DOE national laboratory or nuclear component supplier experience.
* Familiarity with Section II, Part D material allowables.
* Must be willing and able to work onsite