Senior Nuclear Piping Stress Engineer – Lead

Holtec International; Madrid; On-site; EUR 120,000 - 180,000; Full time

Job summary

Holtec International in Madrid, Spain, is seeking a Senior Pipe Stress Engineer to lead nuclear piping design and stress analysis for ASME Section III systems, coordinating with design, materials, welding, procurement, and construction.

The role requires 15+ years in nuclear piping, experience with AutoPIPE, Smart3D, PV Elite, and GT STRUDL, plus familiarity with NRC/CSA rules. You will mentor teams, develop LBB/HELB methodologies, and support vendor reviews and project budgeting.

Qualifications

• 15+ years of experience in nuclear piping analysis and component integrity.
• Experience with ASME Section III Class 1, 2, and 3 piping analysis.
• Familiarity with nuclear regulatory requirements (US NRC, CSA, REGDOC).
• Strong leadership, communication, and collaboration skills.
• Eligibility to work under 10 CFR Part 810.

Responsibilities

• Lead nuclear piping design and stress analysis for ASME Section III Class 1, 2, and 3 systems.
• Perform advanced fracture mechanics, fatigue, SCC crack growth, and fitness-for-service evaluations.
• Develop and implement methodologies such as Leak-Before-Break (LBB) and High Energy Line Break (HELB).
• Conduct piping stress analysis using industry tools (AutoPIPE, ANSYS, ABAQUS, PIPESTRESS).
• Analyze pipe supports per ASME NF and coordinate with support design teams.
• Develop and review engineering deliverables including stress reports, calculations, and line lists.
• Interface with Smart3D/SmartPlant models to resolve layout and flexibility issues.
• Provide technical leadership in probabilistic fracture mechanics and risk-informed methodologies.
• Support fabrication, construction, and field issue resolution.
• Review vendor and supplier documentation for compliance.
• Lead R&D programs and participate in benchmarking and regulatory initiatives.
• Develop proposals, schedules, and project budgets.
• Mentor engineers and lead multidisciplinary teams.

Skills

Leadership

Communication

Collaboration

Mentoring

Nuclear piping analysis

Education

Bachelor’s degree in Mechanical, Structural, or Nuclear Engineering

MSE/PhD strongly preferred

Tools

AutoPIPE

Smart3D

PV Elite

GT STRUDL

ABAQUS

Job description

Holtec International in Madrid, Spain, is seeking a Senior Pipe Stress Engineer to lead nuclear piping design and stress analysis for ASME Section III systems, coordinating with design, materials, welding, procurement, and construction.

The role requires 15+ years in nuclear piping, experience with AutoPIPE, Smart3D, PV Elite, and GT STRUDL, plus familiarity with NRC/CSA rules. You will mentor teams, develop LBB/HELB methodologies, and support vendor reviews and project budgeting.