Senior NSSS Piping Design Engineer - Nuclear (ASME Section III)

Senior NSSS Piping Design Engineer – Nuclear (ASME Section III) Johnson Service Group (JSG) is a nationally recognized professional staffing firm, and we are recruiting for a Senior NSSS Piping Design Engineer – Nuclear (ASME Section III)  to serve within the Nuclear Steam Supply System (NSSS) design organization.   This may be your opportunity to join one of the industry leaders in the development and deployment of next-generation Advanced Light Water Reactors (ALWR) as they advance from design into plant implementation. Location: Remote (Contiguous United States) Salary: $150,000 Travel: Periodic travel to company engineering offices and project locations as required Minimum Qualifications Education B.S. in Mechanical Engineering, Nuclear Engineering, or related discipline from an ABET-accredited university Industry Requirement — Nuclear Experience (Required) Direct experience supporting commercial nuclear power, advanced reactor, or DOE nuclear projects Demonstrated experience performing ASME Section III nuclear piping design and stress analysis Experience limited to fossil power, chemical, oil & gas, or non-nuclear piping codes alone will not meet requirements Licensure & Career Development Engineer-in-Training (EIT) certification preferred Candidates actively working toward Professional Engineer (PE) licensure strongly preferred PE license desirable for advancement to next engineering level Technical Experience Minimum 8 years relevant engineering experience Demonstrated application of ASME Section III NB, NC, or ND-3600 rules Required experience using: CAESAR II or Bentley AutoPIPE ANSYS component analysis experience preferred ASME Section III NF pipe support experience preferred Position Summary Reporting to the Manager, NSSS Piping & Integration, the Senior NSSS Piping Design Engineer performs design, analysis, and integration of nuclear safety-related Nuclear Steam Supply System (NSSS) piping systems supporting a modular Advanced Light Water Reactor (ALWR). This position is part of the nuclear design engineering organization responsible for developing technical requirements and associated design parameters for reactor systems in accordance with ASME Boiler and Pressure Vessel Code Section III, U.S. Nuclear Regulatory Commission regulations, and nuclear quality assurance programs. All engineering activities are performed within a controlled environment compliant with ASME NQA-1 and 10 CFR 50 Appendix B requirements. Demonstrated commercial nuclear piping design and stress analysis experience is required. Key Responsibilities Perform design and stress analysis of ASME Section III Class 1, 2, and 3 nuclear piping systems Execute piping stress analysis using: Bentley AutoPIPE, CAESAR II, or equivalent nuclear-qualified software Perform piping component analysis using ANSYS in accordance with NB-3200 requirements (preferred) Design and analyze pipe supports in accordance with ASME Section III NF Perform static and dynamic analyses including: Deadweight and pressure loads Thermal expansion and thermal gradients Seismic response spectrum and time-history analysis Fluid transient loading Prepare and review nuclear engineering calculations, specifications, drawings, and technical documentation Collaborate with design teams utilizing Siemens NX CAD models Lead evaluations of piping routing solutions and support configurations to meet Section III stress criteria Provide technical mentoring to early-career engineers Interpret complex project scope and multidisciplinary technical interfaces Maintain required nuclear engineering qualifications and training Johnson Service Group (JSG) is an Equal Opportunity Employer. JSG provides equal employment opportunities to all applicants and employees without regard to race, color, religion, sex, age, sexual orientation, gender identity, national origin, disability, marital status, protected veteran status, or any other characteristic protected by law.