holtec

Holtec in Madrid seeks a Senior Piping Engineer to lead analysis, design, and integrity assessments for nuclear piping systems in advanced reactors. You will apply expertise in stress analysis, fracture mechanics, and regulatory compliance while guiding multidisciplinary teams. The role emphasizes leadership, collaboration, and timely delivery of technical...

Holtec invites applications for a Senior Civil Structural Designer to develop 3 D models and 2 D drawings for civil, structural, and architectural SSCs in the SMR-300 program. The role emphasizes modular steel-concrete systems, coordination with engineers, and ensuring constructability across fabrication and site activities. Applicants should have a Diploma...

Holtec in Madrid, Spain, seeks a Senior Electrical Engineer to lead cable routing and raceway design for the SMR-300 project using SP3D. You will coordinate electrical power, I&C, and communications systems, ensure designs meet codes and constructability, and support project execution from design through construction. This role requires a ABET-accredited...

Holtec in Madrid, Spain, seeks a Senior Pipe Stress Engineer to lead nuclear piping design and stress analysis for ASME Class 1-3 systems. The role involves coordinating from P&IDs through layout, stress analysis, and support engineering, with emphasis on safety and regulatory compliance. Responsibilities include developing LBB/HELB methods, performing...

Holtec in Madrid, Spain, seeks a Senior Electrical Engineer to lead cable routing and raceway design for the SMR-300 project using SP3 D. You will coordinate electrical power, I&C, and communications systems, ensure designs meet codes and constructability, and support project execution from design through construction. This role requires a ABET-accredited...

Holtec invites applications for a Senior Civil Structural Designer to develop 3D models and 2D drawings for civil, structural, and architectural SSCs in the SMR-300 program. The role emphasizes modular steel-concrete systems, coordination with engineers, and ensuring constructability across fabrication and site activities. Applicants should have a Diploma...

Holtec International is seeking a Senior Piping Engineer in Madrid to lead piping system design from P&IDs to installation, coordinating across system engineering, design development, stress analysis, and procurement. You will guide material selection, vendor interactions, and interface management with construction teams. The ideal candidate has 10+ years...

Holtec is seeking a Mechanical Engineer II – Nuclear Systems in Madrid, Spain, to analyze and design mechanical components and reactor internals for advanced reactors including SMRs. The role focuses on stress analysis, fracture mechanics, fatigue life, and regulatory compliance within multidisciplinary projects. The candidate will use ANSYS, LS-DYNA, and...

Holtec in Madrid, Spain, seeks a Senior Pipe Stress Engineer to lead nuclear piping design and stress analysis for ASME Class 1-3 systems. The role involves coordinating from P&IDs through layout, stress analysis, and support engineering, with emphasis on safety and regulatory compliance. Responsibilities include developing LBB/HELB methods, performing...

Holtec International is seeking a Probabilistic Safety Analysis (PSA) Engineer I in Madrid to develop and apply PSA methodologies for the SMR-300 program. You will collaborate with design, safety analysis, licensing, and systems engineering teams to support risk-informed design and regulatory compliance. You will develop Level 1/2 PRA models, perform...

Holtec is seeking a Mechanical Engineer II – Nuclear Systems in Madrid, Spain, to analyze and design mechanical components and reactor internals for advanced reactors including SMRs. The role focuses on stress analysis, fracture mechanics, fatigue life, and regulatory compliance within multidisciplinary projects. The candidate will use ANSYS, LS-DYNA, and...

Holtec is seeking a Senior Nuclear Radiation Shielding Engineer in Madrid, Spain, to lead shielding design, source term development, and dose assessment for SMR-300 licensing. The role requires hands-on analysis, model benchmarking, and collaboration with internal teams and the NRC, with mentorship for junior engineers. The ideal candidate has extensive...

Holtec in Madrid is seeking a Pipe Stress Engineer to perform detailed piping stress analyses, ensuring integrity and compliance of piping systems under diverse conditions. You will use AutoPIPE or CAESAR II, develop stress design bases, evaluate thermal and seismic effects, and coordinate with layout, materials, and structural teams to optimize pipe...

Holtec in Madrid, Spain, seeks a Senior Pipe Stress Engineer to lead nuclear piping design and stress analysis for ASME Class 1-3 systems. The role involves coordinating from P&IDs through layout, stress analysis, and support engineering, with emphasis on safety and regulatory compliance. Responsibilities include developing LBB/HELB methods, performing...

Holtec is seeking a Senior Nuclear Radiation Shielding Engineer in Madrid, Spain, to lead shielding design, source term development, and dose assessment for SMR-300 licensing. The role requires hands-on analysis, model benchmarking, and collaboration with internal teams and the NRC, with mentorship for junior engineers. The ideal candidate has extensive...

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...

Holtec International, through its SMR LLC subsidiary, seeks a Piping Engineer in Madrid, Spain, to analyze and design nuclear piping systems for the SMR-300. You will perform stress analyses (ASME III NC/ND), coordinate with supports, and produce deliverables including reports and drawings. The role requires 5 years in piping analysis in regulated...

Holtec International is seeking a Probabilistic Safety Analysis (PSA) Engineer I in Madrid to develop and apply PSA methodologies for the SMR-300 program. You will collaborate with design, safety analysis, licensing, and systems engineering teams to support risk-informed design and regulatory compliance. You will develop Level 1/2 PRA models, perform...

TheProbabilistic Safety Analysis (PSA) Engineer Iwill support the development and application of Probabilistic Safety Assessment (PSA) methodologies for Holtec International's SMR-300 advanced nuclear reactor program. Working within a multidisciplinary engineering team, this role will contribute to risk-informed design, safety analysis, licensing activities,...

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...