Career Opportunities: Senior Pipe Stress Engineer (810 Eligible) (1718) The

Senior Pipe Stress Engineer

coordinates the development and delivery of complete piping systems for the SMR projects. A Senior Piping Engineer will integrate the piping activities from the development of the P&IDs; by System Engineering, through the layout performed by Design Development, the stress analysis & piping support engineering performed by Applied Mechanics, solicit input from Materials Specialists on the selection of piping materials, the Welding Engineer on any special welding requirements, work with Procurement for the purchase of the piping systems including managing technical issues with vendors, and work with Construction on piping related issues during planning and presente construction.

Location:

Madrid, Spain

Important Eligibility Requirement:

This position involves work subject to U.S. Department of Energy regulations under 10 CFR Part 810. Candidates must be legally eligible to obtain authorization to work with certain nuclear technologies and technical information. Eligibility will be evaluated as part of the hiring process.

Primary 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

Ensure compliance with nuclear codes and standards (ASME BPVC III/XI, B31.1, B31.3, API-579, BS7910)





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

Requirements:

Bachelor’s degree in Mechanical, Structural, or Nuclear Engineering (MSE/PhD strongly preferred)

15+ years of experience in nuclear piping analysis and component integrity

Extensive experience with ASME Section III Class 1, 2, 3 piping analysis

Expertise in fracture mechanics and structural integrity assessment

Experience with piping tools such as AutoPIPE and Smart3D environments

Knowledge of pipe support design and integration

Familiarity with nuclear regulatory requirements (US NRC, CSA, REGDOC)

Strong leadership, communication, and collaboration skills

Eligibility to work under 10 CFR Part 810

Preferred Qualifications:

Professional Engineer (P.Eng. or PE) license

Experience with BWR, CANDU, or SMR reactor systems

Experience with probabilistic tools such as xLPR or PRAISE

Experience using GT STRUDL, PV Elite, or similar tools

Advanced research background and publication record

Experience contributing to codes, standards, or industry working groups

Teaching, mentoring, or academic collaboration experience

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If you’re driven to solve meaningful challenges and make a lasting impact, we invite you to build your career at Holtec - a generation ahead by design.

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📌 Senior Pipe Stress Engineer (810 Eligible) (Madrid)
🏢 Holtec
📍 Madrid