Senior Pipe Stress Engineer at Holtec InternationalLocation: Madrid, MD, ES. Full time on site position offers great opportunities for career growth. The Senior Piping Engineer leads the analysis, design, and structural integrity assessment of nuclear piping systems and reactor components for advanced reactors including SMRs. This role combines deep technical expertise in piping stress analysis, fracture mechanics, and regulatory compliance with strong leadership in multidisciplinary project execution.

Location:
Camden, NJ (On-site). 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 ResponsibilitiesLead nuclear piping design and stress analysis for ASME Section III Class 1, 2, and 3 systemsPerform advanced fracture mechanics, fatigue, SCC crack growth, and fitness-for-service evaluationsDevelop 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 teamsDevelop and review engineering deliverables including stress reports, calculations, and line listsInterface with Smart3D/SmartPlant models to resolve layout and flexibility issuesEnsure 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 methodologiesSupport fabrication, construction, and field issue resolutionReview vendor and supplier documentation for complianceLead R&D; programs and participate in benchmarking and regulatory initiativesDevelop proposals, schedules, and project budgetsMentor engineers and lead multidisciplinary teamsRequirementsBachelor’s degree in Mechanical, Structural, or Nuclear Engineering (MSE/PhD strongly preferred)15+ years of experience in nuclear piping analysis and component integrityExtensive experience with ASME Section III Class 1, 2, 3 piping analysisExpertise in fracture mechanics and structural integrity assessmentExperience with piping tools such as AutoPIPE and Smart3D environmentsKnowledge of pipe support design and integrationFamiliarity with nuclear regulatory requirements (US NRC, CSA, REGDOC)Strong leadership, communication, and collaboration skillsEligibility to work under 10 CFR Part 810Preferred QualificationsProfessional Engineer (P.
Eng. or PE) licenseExperience with BWR, CANDU, or SMR reactor systemsExperience with probabilistic tools such as xLPR or PRAISEExperience using GT STRUDL, PV Elite, or similar toolsAdvanced research background and publication recordExperience contributing to codes, standards, or industry working groupsTeaching,



mentoring, or academic collaboration experienceCompany CultureA 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:CompensationAnnual compensation based on skills and experience ranging from $145,000 to $165,000BenefitsIndustry-leading medical, dental, and vision coverage with a generous employer premium contribution and Day 1 eligibilityFLEX Program – Hybrid work opportunities available for eligible roles, where business needs and role requirements allow401(k) retirement plan with up to a 5% company match and immediate vesting to support long-term financial securityPaid time off and 11 paid holidays to support rest, balance, and rechargeWellness program offering rewards for participation in company-supported health initiativesCommuter benefits supporting mass transit and commuter parking optionsCompany-paid life and AD&D; insurance for added peace of mindEducation assistance to support continued education and professional growthEmployee support and voluntary benefits, including an Employee Assistance Program and optional coverage such as disability, legal, identity theft, and insurance programsBenefits eligibility and offerings may vary based on role, location, and employment statusIf 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.

📌 Senior Pipe Stress Engineer at Holtec International (Madrid)
🏢 Holtec International
📍 Madrid