Mechanical Engineer 3 – NSSS Piping & Integration

NuScale Power

Mechanical Engineer 3 focuses on the design and analysis of NSSS pipe systems in compliance with nuclear standards. Collaborating under ASME requirements for advanced nuclear technology.

Posted 7/8/2026full-time🇺🇸 United StatesMid-LevelSenior💰 $108,908 - $131,441 per yearWebsite

About the role

Key responsibilities & impact

Performs design and analysis of the Nuclear Steam Supply System (NSSS) pipe systems in accordance with ASME BPVC Section III and applicable regulatory requirements.
Performs piping design and stress analysis of ASME BPVC Section III Class 1, 2, and 3 piping systems using the Bentley AutoPIPE computer program.
Performs piping design and stress analysis of ASME BPVC Section III Class 1, 2, and 3 piping components using the ANSYS computer program.
Performs pipe support design and stress analysis of ASME BPVC Section III NF supports.
Prepares and reviews engineering specifications, drawings, CAD models, and other documentation that communicate the design and technical aspects of piping components.
Offers design solutions (piping re-route, reconfiguration of supports, etc.) in order to satisfy piping stress criteria.

Requirements

What you’ll need

A minimum of a B.S. degree in Engineering, preferably Nuclear or Mechanical Engineering, from a four year ABET accredited college or university.
A professional engineer (P.E.) certification is preferred.
Minimum of 6 years of full-time, relevant professional experience.
Experience with design and stress analysis of ASME BPVC Section III piping systems in accordance with the requirements of NB, NC, or ND-3600.
Experience with the Bentley AutoPIPE computer code is desirable (similar code is acceptable).
Experience with design and stress analysis of ASME BPVC Section III piping components using ANSYS computer program in accordance with the requirements of NB-3200 (preferred).
Experience with ASME Section III NF (preferred).
Eligible to work under Department of Energy 10 CFR Part 810.

Benefits

Comp & perks

Employee Benefits | NuScale Power
Health insurance
Retirement plans
Paid time off
Flexible work arrangements
Professional development opportunities

ATS Keywords

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Hard Skills & Tools

Piping DesignStress AnalysisEngineering SpecificationsCAD ModelingPiping Component Design

Certifications

Professional Engineer (P.E.) Certification