Engineer II, Probabilistic Risk Assessment

Company: X-Energy, LLC
Location: Rockville
Posted on: June 6, 2025

Job Description:

X-energy LLC conducts a thorough recruiting process and will never issue offers without interview to discuss qualifications and responsibilities. All applications will be submitted via our company career page, www.x-energy.com/careers/ . We will never ask you to provide payment information as part of the recruiting process. If anyone claiming to represent X-energy directs you in a manner otherwise, please contact us at www.x-energy.com/contact-us .

Job Description
X-energy is seeking professionals to join our Risk Informed Safety Analysis team in the role of Engineer I, Probabilistic Risk Assessment. This position will perform risk assessments in accordance with the appropriate industry standards and guidance, authoring and reviewing PRA-related documents that support modelling and applications for risk insights. This role will use risk-related software to create and maintain PRA models that represent the design of X-energy projects. They will also produce and review calculation documents that support and control the PRA model files, use PRA models, and apply them to a range of applications to provide risk insights to support the design and future operation of X-energy projects.

Responsibilities

This role will execute the following core tasks and responsibilities under guided supervision.

• Provide ownership, responsibility, and accountability over technical scope involving the coordination of multiple individual contributors working in a specific area
  
• Perform various safety analyses in Probabilistic Risk Assessment:
  
  • Follow the guidance of ASME/ANS RA-S-1.4-2021 (or other applicable PRA-related industry standards) in creating and maintaining PRA models and supporting calculation documents
    
  • Revise and review of PRA documents
    
  • Follow the guidance of dozens of PRA-dependent applications (such as NEI 18-04) to acquire risk insights from the PRA to inform the design process and licensing basis of projects
    
  • Develop increasing proficiency in using PRA-related software (e.g. EPRI's Phoenix Architect) in accordance with X-energy procedures, ensuring the correct software version is being used in the manner it was verified, be aware of limitations and restrictions of software, and ensure software is referenced in documents that depend on its use
    
  • Perform main PRA tasks including event tree and fault tree development, and associated documentation
    
  • Develop screening methods, risk-informed supplemental evaluations, and/or PRA models for different plant operating modes and states, radionuclide sources, various internal and external hazards, and multi-reactor considerations
    
  • Able to show increasing proficiency interpreting, applying, and assessing Standards
    
  • Collaborate and communicate with key stakeholders in engineering, project leadership, and across the safety analysis team to provide frequent updates on progress of projects, maintain the correct order of priorities and ability to adapt to change, and raise concerns when there are problems with projects and/or timelines
    
  • Provide engineering/technical expertise and guidance in the identification, analysis, and resolution of problems of increasing scope and complexity
    
  • Contribute to team decision-making in the accomplishment of business goals and objectives through effective planning, organizing, estimating, scheduling, and monitoring of work activities; deal with changing priorities and differing situations and make decisions that may affect the work of the team
    
  • Prepare thorough and accurate technical reports, correspondence, documentation, calculations, and sketches related to well-defined problems and analysis of increasing scope and complexity
    
  • Conduct engineering and related studies; complete routine engineering projects with minimal oversight with increasing ability to independently manage project schedules and interfaces
    
  • Develop and maintain safety basis documents and safety basis program procedures
    
  • Identify and describe the interrelationship of safety basis requirements to existing and new designs and operations
    
  • Develop, maintain, and produce technical documentation to inform system/subsystem requirements and specifications
    
  • Interface with customers and regulators in nuclear safety reviews and technical working group meetings to comply with requirements and meet project objectives
    
  • Maintain professional demeanor and behavior at all times in all forms of communication
    
  • Perform other duties as assigned by manager
    
    
    Minimum Education/Qualifications
    
    • Bachelor of Science in Engineering from an ABET accredited program
      
    • Typically 3 years of engineering experience
      
      • A master's degree in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of two years of experience
        
      • A Ph.D. in engineering or related field (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional experience) may be in lieu of three years of experience
        
      • Work experience or university courses covering reactor safety or probabilistic risk assessment of nuclear power plants is preferred
        
      • Experience in the utility industry is preferred
        
        
        Location: 530 Gaither Road, Rockville, MD
        
        Work Site Expectations: 4-5 days in office
        Travel Expectations: up to 10% depending on project requirements
        
        Hours: 8:00am - 5:00pm ET, Mon-Fri
        
        Compensation
        
        As required by Maryland and other applicable state law, X Energy, LLC (X-energy) lists the expected compensation range for a publicly advertised job opportunity based upon the job requirements (e.g. education/training, experience, skill sets, etc.). Individual candidates who meet the job requirements for the posted position will be offered a salary within this range based on their respective levels of education/training, experience, and other qualifications unique to them. Salary ranges may vary based on the specific office location and region referenced in the posting to take into consideration differences in cost of living and may not be reflective of all regions. Please note that compensation ranges listed for US job postings reflect base salary only and do not include benefits or other incentives.
        
        A reasonable estimate for this position at the level of experience required is:
        $108,900 to $139,150
        
        Position Job Classification
        Full time - Exempt
        
        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.
        
        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 the links below for more information about E-Verify and the protection of your Right to Work.
        
        Right To Work Link: If you have the right to work, don't let anyone take it away (e-verify.gov)
        
        E-Verify Participation Link: E-Verify Participation Poster English and Spanish

Keywords: X-Energy, LLC, Bel Air South , Engineer II, Probabilistic Risk Assessment, Engineering , Rockville, Maryland