Deterministic Safety Analysis (DSA) Engineer II

Holtec International; Madrid; On-site; EUR 45,000 - 70,000; Full time

Job summary

Holtec International is seeking a Deterministic Safety Analysis (DSA) Engineer II to develop methods and perform analyses ensuring SMR-300 safety and licensing compliance.

Based in Madrid, Spain, you will evaluate AOOs and DBAs, analyze reactor systems, and contribute to licensing documentation using RELAP5, RETRAN, COBRA, VIPRE, and GOTHIC codes.

Qualifications

• B.S. in nuclear engineering, mechanical engineering, or closely related field from an accredited college or university.
• Familiarity with thermal-hydraulic behavior of LWRs.
• Familiarity with industry codes such as RELAP5, RETRAN, COBRA, VIPRE, GOTHIC.

Responsibilities

• Develop and perform deterministic safety analyses to demonstrate SMR-300 meets safety and licensing requirements.
• Evaluate AOOs and DBAs, including thermal-hydraulic response, core performance, and radiological consequences.
• Analyze components such as the reactor core, reactor coolant system, engineered safety features, and containment.
• Support licensing documentation and responses to regulatory inquiries.
• Develop, maintain, and apply analytical methods and computer models for safety analyses.
• Perform verification and validation of analysis codes for accuracy and regulatory compliance.
• Collaborate with multidisciplinary teams to integrate design inputs into safety evaluations.
• Prepare detailed technical reports and calculations per QA standards (NQA-1).
• Ensure analyses are traceable, reproducible, and compliant with regulatory requirements.

Skills

Thermal-hydraulics

LWR codes

RELAP5

RETRAN

COBRA

VIPRE

GOTHIC

Technical writing

Communication skills

Education

B.S. in Nuclear/M Mechanical Engineering

Tools

RELAP5

RETRAN

COBRA

VIPRE

GOTHIC

Job description

Career Opportunities: Deterministic Safety Analysis (DSA) Engineer II (1720)

TheDSA Engineer II will be responsible for developing methods and performing analyses to demonstrate that the SMR-300 satisfies its safety and licensing requirements. These types of analyses include evaluations of the reactor core, reactor coolant system, engineered safety features, containment, and radiological releases associated with anticipated operational occurrences (AOOs) and design basis accidents (DBAs). Additionally, the DSA group is responsible for the development, verification, and validation of the computer codes used in these analyses.

Location: Madrid, Spain

Primary Responsibilities:

• Develop and perform deterministic safety analyses to demonstrate that the SMR-300 reactor meets applicable safety and licensing requirements.
• Evaluate reactor behavior during anticipated operational occurrences (AOOs) and design basis accidents (DBAs), including thermal-hydraulic response, core performance, and radiological consequences.
• Analyze key plant systems such as the reactor core, reactor coolant system, engineered safety features, and containment.
• Support the preparation of licensing documentation, including safety analysis reports and responses to regulatory inquiries.
• Develop, maintain, and apply analytical methods and computer models used in safety analyses.
• Perform verification and validation (V&V) of analysis codes to ensure accuracy, reliability, and regulatory compliance.
• Collaborate with multidisciplinary engineering teams to integrate design inputs into safety evaluations.
• Prepare detailed technical reports, calculations, and documentation in accordance with quality assurance standards (e.g., NQA-1).
• Ensure analyses are traceable, reproducible, and compliant with applicable regulatory and industry requirements.

Requirements:

• B.S. degree in nuclear engineering, mechanical engineering, or closely related field from an accredited college or university
• Familiarity with thermal-hydraulic behavior of light water reactors (LWRs)
• Familiarity with industry computer codes such as RELAP5, RETRAN, COBRA, VIPRE, GOTHIC, etc.
• At least 3 years’ experience developing and/or using codes and methods associated with LWR safety analysis calculations
• Excellent technical writing, interpersonal, and communication skills
• Eligible to work under 10 CFR Part 810

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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™.