Mechanical Engineer ; Nuclear Steam Supply System Piping & Integration
Corvallis, Benton County, Oregon, 97333, USA
Listed on 2026-02-28
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Engineering
Mechanical Engineer, Process Engineer, Systems Engineer, Piping Engineer
Job Title: Mechanical Engineer 5 (Nuclear Steam Supply System Piping & Integration)
Location: Corvillas, OR
Type: Direct Hire
Work Model: Remote with travel to client’s physical offices as needed.
System One is seeking a Mechanical Engineer for a direct-hire, full-time position. The successful candidate must have Subject Matter Expertise in one or more of the following areas:
- Engineering design and piping stress engineering analysis in the nuclear industry.
- Bentley AutoPIPE or other comparable pipe analysis code.
- ASME Section III Class 1, 2, and 3 piping systems (NB/NC/ND-3600) and/or piping supports (NF).
- Minimum of 15 years of highly relevant, full‑time engineering experience
- PE License in Mechanical or Nuclear Engineering
- Certifying Engineer experience to ASME BPVC Section III
This role performs design and analysis of Nuclear Steam Supply System (NSSS) piping systems in accordance with ASME BPVC Section III and applicable regulatory requirements. The position is part of the NSSS design engineering organization, which generates technical requirements and associated design parameters for the modular advanced light water reactor (ALWR) NSSS. Utilizing proven, state‑of‑the‑art methodologies, NSSS components are engineered to nuclear industry standards.
All work within the NSSS design organization is completed under ASME NQA-1 quality assurance requirements and applicable U.S. Nuclear Regulatory Commission guidelines.
- Performs complex piping design and stress analysis of ASME BPVC Section III Class 1, 2, and 3 piping systems using the Bentley AutoPIPE computer program in accordance with the requirements of NB, NC, ND-3600, respectively.
- Performs piping design and stress analysis of ASME BPVC Section III Class 1, 2, and 3 piping components using the ANSYS computer program in accordance with the requirements of NB-3200.
- Performs pipe support design and stress analysis of ASME BPVC Section III NF supports using hand calculations or ANSYS computer program.
- Performs static and dynamic analysis including response spectrum and time history analysis to calculate stresses due to dead weight, thermal expansion, thermal gradients, seismic events, and fluid transients.
- Prepare and review engineering specifications, drawings, CAD models, and other documentation that communicate the design and technical aspects of piping components associated with NSSS systems. The development of Drawings and CAD models is based on collaboration with drafters and requires the engineer to review models that have been developed in Siemens NX.
- Leads the evaluation of design solutions (piping re‑route, reconfigurations of supports, etc.) which satisfy piping stress criteria.
- Works on complex tasks in multiple and diverse areas.
- Interprets scope and project requirements.
- Acquires, maintains and develops training qualifications.
- Performs other duties as assigned.
- Provides oversight and mentoring to early career engineers in the area of piping stress analysis and/or pipe support analysis.
- Certifies design specification for ASME BPVC Section III Piping and/or Piping Supports.
- Education/Certification:
A minimum of a B.S. degree in Engineering, preferably Nuclear or Mechanical Engineering
, from a four year ABET accredited college or university is required. Advanced degree is preferred.
PE License in Mechanical or Nuclear Engineering is required.
Certifying Engineer experience to ASME BPVC Section III is required. - Experience:
Minimum of 15 years of highly relevant, full‑time engineering experience is required.
Experience with the qualification of piping systems including ball joints is desirable.
Subject Matter Expertise in one or more of the following areas: - Engineering design and piping stress engineering analysis in the nuclear industry.
- Bentley AutoPIPE or other comparable pipe analysis code.
- ASME Section III Class 1, 2, and 3 piping systems (NB/NC/ND-3600) and/or piping supports (NF).
- Industry Requirements:
Eligible to work under Department of Energy 10 CFR Part 810.
System One, and its subsidiaries including Joulé, ALTA IT Services, and Mountain Ltd., are leaders in delivering outsourced services…
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