Senior Pipe Stress Engineer at Holtec International

Location: 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 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, BS****)





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 PRAISEExperience 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

Company Culture

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:

Compensation

Annual compensation based on skills and experience ranging from $145,000 to $165,000

Benefits

Industry-leading medical, dental, and vision coverage with a generous employer premium contribution and Day 1 eligibility!

FLEX Program – Hybrid work opportunities available for eligible roles, where business needs and role requirements allow

401(k) retirement plan with up to a 5% company match and immediate vesting to support long-term financial security

Paid time off and 11 paid holidays to support rest, balance, and recharge

Wellness program offering rewards for participation in company-supported health initiatives

Commuter benefits supporting mass transit and commuter parking options

Company-paid life and AD&D; insurance for added peace of mind

Education assistance to support continued education and professional growth

Employee support and voluntary benefits, including an Employee Assistance Program and optional coverage such as disability, legal, identity theft, and insurance programs

Benefits eligibility and offerings may vary based on role, location, and employment status

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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