Piping Engineer - Nuclear Systems (SMR)

Holtec; Almondsbury; Hybrid; GBP 65,000 - 95,000; Full time

Benefits offered by this job

Private health insurance

Hybrid work opportunities

Education assistance

Employer matched pension contributions

Life insurance

Enhanced maternity/paternity benefits

25 days annual leave

Bank holidays

Job summary

Holtec International, via its SMR LLC, seeks a Piping Engineer in Almondsbury (Bristol area) to design and analyze nuclear piping systems using AutoPIPE per ASME III requirements. Relocation assistance available and a hybrid work option.

The role emphasizes collaboration with multidisciplinary teams, delivering stress analyses, isometrics, and line lists while ensuring regulatory compliance. A mechanical engineering degree and 5 years of piping experience in regulated environments are preferred.

Qualifications

• Bachelor’s degree in Mechanical Engineering; advanced degree preferred
• 5 years piping analysis in nuclear or regulated industries
• ASME III Class 1-3 piping analysis experience
• ASME B31.1 or similar codes
• AutoPIPE proficiency
• SmartPlant / Smart3D experience
• Strong communication skills
• Cross-functional teamwork
• Eligibility for 10 CFR Part 810
• NRC regulatory familiarity
• Pipe supports integration
• GT STRUDL / PV Elite / ANSYS experience

Responsibilities

• Perform nuclear piping stress analyses with AutoPIPE per ASME III NC/ND
• Analyze pipe supports and coordinate with design teams
• Prepare and maintain stress reports, isometrics, line lists
• Support Smart3D models; resolve layout, flexibility, stress issues
• Collaborate across disciplines to resolve design challenges
• Provide fabrication and field support
• Review vendor documents for design/code compliance
• Ensure quality and regulatory compliance

Skills

Piping analysis

ASME III

AutoPIPE

Smart3D

SmartPlant

Nuclear industry

Regulatory compliance

Cross-functional teamwork

Education

BSc Mechanical Eng

Tools

AutoPIPE

SmartPlant

Smart3D

GT STRUDL

PV Elite

ANSYS

Job description

The Piping Engineer at Holtec International, through its subsidiary SMR LLC, supports the analysis and design of nuclear piping systems for the SMR‑300, an advanced small modular reactor developed to deliver safe, secure, and reliable clean energy. This role focuses on ASME Section III Class 1, 2, and 3 piping design and works closely with multidisciplinary engineering teams to ensure systems meet safety, regulatory, and quality requirements, making it well suited for an engineer with strong piping stress analysis expertise, experience with industry‑standard tools, and the ability to collaborate effectively in a complex technical design environment.

Location: Almondsbury (Bristol Area), UK – Relocation Assistance Available!

Primary Responsibilities:

• Perform nuclear piping stress analyses using AutoPIPE in accordance with ASME Section III Class 1, 2, and 3 (NC/ND) requirements
• Analyze pipe supports and coordinate closely with pipe support design teams to ensure structural adequacy and proper integration
• Prepare, review, and maintain piping engineering deliverables, including stress analysis reports, isometric drawings, and line lists
• Support Smart3D piping models and resolve piping layout, flexibility, and stress interface issues
• Collaborate with structural, mechanical, and systems engineering teams to resolve design and analysis challenges
• Provide technical support during fabrication and construction, addressing piping‑related inquiries and field issues
• Review supplier and vendor documentation for compliance with design requirements and applicable codes and standards
• Ensure engineering work meets quality, completeness, and regulatory expectations in accordance with internal procedures and governing codes

Requirements:

• Bachelor’s degree in Mechanical Engineering or a related field, advanced engineering degree preferred
• 5 years of experience in piping analysis within nuclear or other regulated industries
• Direct experience performing ASME Section III Class 1, 2, and 3 piping analysis
• Experience with additional piping codes such as ASME B31.1 or similar
• Proficiency with AutoPIPE
• Experience working in SmartPlant or Smart3D environments
• Strong communication and collaboration skills
• Ability to work effectively in a cross-functional team environment
• Eligibility to work under 10 CFR Part 810
• Familiarity with U.S. NRC regulations related to nuclear design and construction preferred
• Working knowledge of pipe support design and integration with stress analysis
• Experience with additional tools such as GT STRUDL, PV Elite, or ANSYS

A Generation Ahead by Design
Investing in people who power the future.

We believe great work deserves great rewards. Our benefits go beyond the basics, reflecting our commitment to supporting your whole self, your health, your future, and your career growth. This includes:

• Private health insurance for physical and mental health, 24/7 GP access, dental/optical cashback and travel insurance for you and your family
• 25 days annual leave plus bank holidays, with Christmas shutdown
• Hybrid work opportunities available where business needs and role requirements allow
• Education assistance to support continued professional growth, reimbursement of professional membership fees
• Employer matched pension contributions, life insurance, enhanced maternity/paternity benefits

If you’re driven to solve meaningful challenges and contribute to the future of clean energy, we invite you to build your career at Holtec.