Piping Engineer - Nuclear Systems (SMR)

Holtec International; Madrid; On-site; EUR 65,000 - 90,000; Full time

Job summary

Holtec International in Madrid is seeking a Piping Engineer to support analysis and design of nuclear piping systems for the SMR-300.

You will perform ASME Section III Class 1-3 piping analyses using AutoPIPE, review pipe supports, and collaborate with structural and systems teams to meet safety and quality requirements.

This role requires 5 years of piping analysis experience in regulated environments and familiarity with Smart3D/SmartPlant and other codes.

Qualifications

• Bachelor's degree in Mechanical Engineering or related field.
• 5 years of piping analysis experience in nuclear or regulated industries.
• Experience in ASME Section III Class 1-3 piping analysis.
• Proficiency with AutoPIPE.
• Experience with SmartPlant or Smart3D.
• Familiarity with NRC/810 regulations preferred.
• Strong communication and cross-functional collaboration skills.

Responsibilities

• Perform nuclear piping stress analyses per ASME III NC/ND.
• Analyze pipe supports and coordinate with design teams.
• Prepare and review piping deliverables: stress reports, isometrics, line lists.
• Support 3D piping models and resolve layout/stress issues.
• Collaborate with structural/mechanical teams to resolve challenges.
• Provide technical support during fabrication and construction.
• Review supplier documentation for code compliance.
• Ensure quality and regulatory alignment per internal procedures.

Skills

Piping stress analysis

AutoPIPE

ASME III

Piping codes

Smart3D

SmartPlant

GT STRUDL

PV Elite

ANSYS

Regulatory compliance

Education

Bachelor’s degree in Mechanical Engineering

Tools

Smart3D

SmartPlant

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

Madrid, Spain

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. 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.