Engineer IV/V - Seismic Fragility Specialist

X-Energy•Rockville, MD

41d•$115,050 - $216,625•Remote

About The Position

This role is responsible for supporting the Software Services team that performs software development and qualification of design and safety analysis codes and the Risk Informed Safety Analysis team that performs the nuclear safety analysis. The software is used to support X-energy technology (e.g., Xe-100) licensing and design, including system thermo-hydraulic analysis, component thermo-hydraulic analysis, fission product release and transport analysis, neutronics analysis, structural analysis and probabilistic risk assessments (PRA). The position directs the work of individual contributors and subcontractors performing validation exercises, supports the teams for software that is developed in-house, and supports all programmatic documentation associated with the execution of Regulatory Guide (RG) 1.203, "Transient and Accident Analysis Methods".

Requirements

Bachelor's degree in engineering (nuclear, chemical, mechanical, etc.) or related degree from an accredited institution.
Requires specialized knowledge within the function of safety analysis.
Requires previous experience with performing V&V or CGD activities.

Nice To Haves

Bachelor's degree in engineering (nuclear, chemical, mechanical, etc.) or related degree from an accredited institution.
Experience with ASCE / ACI / AISC codes and structural demand / capacity calculations.
Experience with FEM software (e.g., ANSYS, LS-DYNA, STAAD.PRO, SAP2000), specifically the static analysis, modal analysis, and response spectrum analysis.
Experience with seismic fragility calculations, especially EPRI Seismic Fragility Guidance 3002012994.
Experience with SMR seismic risk profiles (typically very different from traditional LWRs because of passive cooling features, relay chattering no longer relevant).
Familiarity with ASME Non-LWR PRA Standard Ra-S-1.4-2021.
Familiarity with PRA Software (Phoenix Architect or equivalent).

Responsibilities

Support the execution of software development and software qualification for assigned projects using sound engineering principles and adhering to business standards, practices, procedures, and product / program requirements.
Support the collection and formulation of software requirements based on the work of the various engineering analysis disciplines, which includes Safety Analysis. These requirements include modelling capability, user and code-to-code interface requirements, physical phenomena, validation requirements as well as the quality assurance based on analysis use.
Oversee the software qualification efforts, which include verification, validation, and Commercial Grade Dedication (CGD). This encompasses accepting V&V and CGD work and providing guidance to assist analysts with X-energy software quality assurance procedure compliance.
Ensure the grading in the Software Quality Assurance program is appropriately applied to software codes (i.e., defining the level of QA effort for each software-related activity). In this context the QA requirements could vary from commercial best practice to nuclear safety applications compliant with NQA-1.
Ensure the validation basis is fully aligned with the software application in the safety analysis. The software requirements, Phenomena Identification and Ranking Table (PIRT) and validation plans are the vehicles used to accomplish this. This will ensure that the abovementioned requirements are properly flowed down and translated into the analysis software that is qualified to perform analysis for nuclear safety-related applications.
Support development of documentation associated with RG 1.203, including but not limited to the PIRT, scaling analysis and code applicability reports.
Provide the Xe-100 Team leads with frequent updates on progress and promptly communicate adverse findings.
Support development of workflow outlines, to be documented in plans and provide direction to ensure the convergence of efforts of engineering team members, partners, and suppliers to ensure the successful delivery of high-quality engineering work products are on schedule and within budget as defined by the Project leadership.
Assesses quality of information given and asks pertinent questions to stakeholders.
Perform work in accordance with X-energy Quality Assurance procedures.
Execute safety analysis and V&V assignments with clear and specified objectives; utilizes conventional specification and/or Interface Control Documents and plans.
Maintain professional demeanor and behavior at all times in all forms of communication.
Perform other duties as assigned by manager.

Benefits

X Energy, LLC offers a robust benefits package that includes a 401K plan with an employer match, Medical/Dental /Vision Insurance, Life and Disability Insurance, Paid Time Off, and a Tuition Reimbursement/Professional Development policy that supports the continuing education of our employees.

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