Piping Principal Designer (Nuclear)

JSG (Johnson Service Group, Inc.); Greenville (SC); On-site; USD 150,000 - 160,000; Full time

Benefits offered by this job

401(K) with up to 6% employer contribution

Emphasis on work-life balance

Strong overall company benefits

Job summary

A staffing leader in nuclear and energy sectors is seeking an experienced Piping Principal Designer to manage piping design efforts for complex projects. The ideal candidate should have a strong background in nuclear piping design, relevant experience, and the technical leadership skills to mentor junior designers. This on-site role in Greenville, SC, offers a salary of $150-$160K, depending on experience, along with strong benefits, including a 401(K) plan with employer contributions.

Qualifications

• U.S. Citizenship required.
• Minimum of 15 years of relevant experience.
• Working knowledge of applicable piping codes and standards.

Responsibilities

• Provide technical leadership for piping design activities.
• Prepare and check piping design deliverables.
• Coordinate with engineering disciplines, procurement, and vendors.

Skills

Piping design and layout

3D modeling

Technical leadership

Communication and coordination skills

Education

Associate degree in a related technical field

Tools

2D CADD

Job description

Overview

U.S. Citizen. 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.

Pay: $150-$160K (DOE)

Location: Greenville, SC (100% on site)

Must be a U.S. Citizen.

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.

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.

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

• 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

• 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.