Engineer III, Plant & Process Design

Job Description X-energy LLC is hiring a Plant & Process Design Engineer to support its team. This role is responsible for designing and developing mechanical systems and components. It includes identifying requirements, conceptualizing system architecture and developing the layout through final design, performing process calculations, selecting and specifying equipment components ensuring they meet all technical specifications and program/project requirements. Additionally, this role oversees the implementation of rigorous, repeatable System Engineering processes, ensures technical integration, monitors risks, and provides system‑level oversight and support. The position is responsible for managing the entire effort to bring the system from initial requirements to a fully functional operational state in accordance with X‑energy design guides and standards and sound engineering principles. Job Tasks/Responsibilities Execute the core tasks and responsibilities, listed in the Job Profile Task/Responsibilities section of this document, with minimal supervision. Support the assessment of SSCs for manufacturability as well as assembly and integration considerations at the direction of senior engineers. Develop mechanical/physical system design concepts, design and support development of processes to create structures, systems, and components (SSCs). Planning/structuring scope for the analyses required to assess aspects of the SSCs to ensure they can perform their intended functions and meet design requirements and specifications. Provide independent reviews and acceptance reviews of engineering deliverables and data. Oversee documentation to applicable requirements, interfaces, design basis and criteria by coordinating with key stakeholders/systems engineers and identifying applicable industry codes and standards. Have a thorough understanding of the requirements contained within industry codes and standards and the intent which is implied. Direct the planning for the analyses required to assess all aspects of the SSCs to ensure they can perform their intended functions and meet all technical specifications and requirements. Supervise performance of computations utilizing hand calculations and analytical tools for structural, thermal, hydraulic, and other scoping calculations as required to ensure SSCs can meet all technical requirements. Oversee procured items and associated documentation for acceptance and verify compliance of procured services and material with contract specifications. Develop and manage implementation of engineering changes in accordance with approved procedures. Provide ownership, responsibility, and accountability over technical scope involving the coordination of multiple individual contributors working in a specific area. Design and develop mechanical systems and components: Understand how nuclear safety relates to system engineering and the work performed on a day‑to‑day occurrence. Identify, collect, and document applicable requirements, interfaces, design basis and criteria by coordinating with key stakeholders/systems engineers and support identifying applicable industry codes and standards. Create and maintain CAD‑generated engineering models. Perform computations and analyses for thermal and hydraulic systems as required to ensure SSCs can meet technical requirements. Write and develop design documentation including, but not limited to, design basis documents, technical reports, calculations, design descriptions and drawings in accordance with applicable procedures. Perform Systems Engineering processes for the designed mechanical systems and components: Demonstrate project management skills to effectively organize and lead external engineering partners. Develop the technical content for and support the procurement of material, equipment, and services. Review system engineering documentation from other systems for technical correctness and compliance with X‑energy processes and procedures and participate in design reviews for other systems. Actively support the safety culture and ensure integration of quality in all System Engineering processes by complying with the relevant requirements of the Quality Assurance Program. Identify, document, report and manage system and project risks to ensure they are visible and mitigated accordingly. Perform work in accordance with X‑energy quality procedures for design and configuration management to ensure project quality requirements are met. Maintain professional demeanor and behavior at all times in all forms of communication. Perform other duties as assigned by manager. Minimum Qualifications Bachelor’s degree in mechanical engineering or related engineering discipline from an ABET accredited university required. Typically, five years of experience in a mechanical engineering role required (may include a combination of experience obtained through an academic institution, e.g., design projects, research, or design teams, as well as professional 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. Previous experience at X‑energy exceeding performance standards may be in lieu of years of experience. Typically, experience with mechanical process equipment design, procurement, installation, and/or operation is required. Systems or Design Engineering experience in successful mechanical system development projects. Experience with design and operation of mechanical systems including, but not limited to, steam, feedwater, condensate, HVAC, fire protection, drainage, compressed air, services, water‑based systems, or nuclear systems. Knowledge of system requirements management, and verification. Knowledge of Systems Engineering processes, as well as relevant aspects of nuclear power plant licensing, regulatory, quality, and safety requirements. Technical proficiency in fundamentals of mechanical design for structural and fluidic components, mechanisms, or manufacturing & processing equipment. Preferred Skills Experience developing and/or working with system purification technologies (e.g., reverse osmosis, capacitive deionization, etc.) is a plus. Location 530 Gaither Road, Rockville, MD Work Site Expectations 4 days onsite Travel Expectations Up to 10% as needed 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: $99,000- $165,000 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. Equal Opportunity Employment 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. E-Verify Participation 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 #J-18808-Ljbffr