Piping Principal Designer (Nuclear) Pay: $150-$160K (DOE) Location:Greenville, SC (100% on site)
Must be a U.S. Citizen.
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Johnson Service Group (JSG) is working with a client that is expanding its footprint in the nuclear and energy sectors, supporting some of the most complex, high-impact projects across the U.S. This is more than a role — it’s a chance to be part of a collaborative team that’s helping shape the energy transition and delivering solutions for industries that matter.Â
Why should you consider this opportunity?
Be part of a trusted engineering and technical staffing leader with a strong reputation in nuclear and energy innovation.
Work on challenging, meaningful projects that directly impact the future of clean energy and energy security.
Grow your career in a supportive, nationwide team where your expertise is valued, and your development is prioritized.
Strong overall company benefits, including 401(K) with up to 6% employer contribution and a real emphasis on work-life balance and vacation time.
They focus on employee development and long-term retention, making sure that their employees are happy.
Overview
We are seeking an experienced Piping Principal Designer to lead complex piping design efforts in support of nuclear and DOE-regulated projects. This role requires deep technical expertise, the ability to work independently with minimal supervision, and experience supporting safety-critical facilities and systems.
The ideal candidate has a strong background in nuclear piping design, DOE codes and standards, and 3D modeling, and is comfortable serving as a technical lead and mentor within a multidisciplinary engineering environment.
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Key Responsibilities
Provide technical leadership for piping design activities with minimal direction
Lead and/or supervise junior and intermediate designers
Prepare and check piping design deliverables including:
Piping layouts and drawings
3D models and isometrics
Piping plans, sections, and details
Execute work in compliance with project quality requirements, procedures, and client standards
Coordinate with engineering disciplines, procurement, vendors, and subcontractors
Support construction activities, field changes, and as-built documentation
Perform walkdowns and field verification as needed
Ensure designs meet applicable codes, standards, and DOE requirements
Support administrative and technical documentation related to design changes and project execution
Required Qualifications
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U.S. Citizenship required
Associate degree in a related technical field or a minimum of 15 years of relevant experience
Working knowledge of applicable piping codes and standards, including DOE Orders
Experience supporting nuclear or DOE-regulated facilities
Strong background in:
Piping design and layout
3D modeling and 2D CADD
Design verification and checking
Ability to read and interpret engineering drawings, specifications, and technical documentation
Experience working in a multi-disciplinary engineering and construction environment
Excellent communication and coordination skills
Preferred Qualifications
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Experience with ASME NQA-1 quality requirements
Experience supporting:
Department of Energy (DOE)
Nuclear facilities or safety-related systems
Knowledge of material availability, procurement, and vendor documentation
Familiarity with:
P&IDs and piping line lists
Piping stress requirements
Construction and field execution support
Previous experience serving as a lead or principal designer on large, complex projects
** 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.
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