Engineer V, Risk Informed Safety Analysis

Engineer V, Risk Informed Safety Analysis

This role is responsible for performing safety analysis and/or probabilistic risk assessments (PRA) in accordance with industry standards and guidance, authoring and reviewing safety analysis/PRA-related documents, and providing results and insights to the design of X-energy technologies. The position requires use of specialized software to create and maintain models that represent the design of X-energy projects and technologies, and produce calculation documents that support and control the PRA or safety analysis model files.

• Perform various safety analyses including:
  • Probabilistic Risk Assessment – create and maintain PRA models using ASME/ANS RA‑S‑1.4‑2021 and other industry standards; revise and review PRA documents; apply PRA results to inform design and licensing.
  • Develop screening methods, risk‑informed supplemental evaluations, and PRA models for different plant operating modes, radionuclide sources, and multi‑reactor considerations.
• Conduct nuclear safety analysis:
  • Lead system‑level thermal‑fluid analyses and process design using 1‑D system simulation codes.
  • Guide source term analyses and radiological consequence analysis.
  • Develop models to support licensing basis event analysis and evaluations.
  • Perform elementary mathematical model programming for engineering calculations and develop code V&V plans.
• Interpret, apply, and assess relevant standards, ensuring correct software version usage and documentation.
• Collaborate with engineering, project leadership, and safety analysis team to provide frequent updates, maintain priorities, and address project concerns.
• Provide engineering/technical expertise and guidance for increasing scope and complexity problems.
• Contribute to team decision‑making through planning, organizing, estimating, scheduling, and monitoring work activities.
• Prepare thorough and accurate technical reports, correspondence, documentation, calculations, and sketches.
• Conduct engineering studies and complete routine projects with minimal oversight, managing schedules and interfaces independently.
• Develop and maintain safety basis documents and program procedures.
• Interface with customers and regulators in nuclear safety reviews and technical working group meetings.
• Maintain professional demeanor in all communications.
• Lead core tasks without close supervision and mentor junior team members.
• Stay abreast of industry and academic trends, breakthroughs, and best practices.
• Perform other duties as assigned by manager.

• Bachelor’s degree in engineering (nuclear, chemical, mechanical, etc.) from an ABET‑accredited university required.
• Typically fifteen years of experience in an engineering role required.
• A master’s degree in engineering or related field may replace two years of experience.
• A Ph.D. in engineering or related field may replace three years of experience.
• Previous experience at X-energy meeting performance standards may replace years of experience.

530 Gaither Road, Rockville, MD

4 days in office

10% as needed for project assignment

Standard office hours are 8:00 am ET to 5:00 pm ET, Monday – Friday

Estimated salary range: $135,300 – $225,000 based on location and experience. Base salary only; does not include benefits or other incentives.

• 401(k) plan with employer match
• Medical/dental/vision insurance
• Life and disability insurance
• Paid time off
• Tuition reimbursement/professional development support

An Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, or protected veteran status and will not be discriminated against on the basis of disability. X Energy, LLC participates in E‑Verify. Please visit e-verify.gov for more information.