Senior Safety Verification and Validation Engineer

System One; Washington (District of Columbia); Remote; USD 140,000 - 190,000; Full time

Job summary

System One is seeking a Senior Safety Verification and Validation Engineer for a 12-month remote contract. The role focuses on verifying and validating safety assessment models and software used in reactor safety analysis and licensing.

You will develop and assess benchmark models, ensure compliance with NRC RG 1.203, and support safety methodology development for next-generation nuclear systems, including Sodium Fast Reactors (SFR).

Qualifications

• Advanced degree in nuclear engineering or related field.
• 5+ years of relevant experience in nuclear safety engineering.
• Experience with NQA-1 quality assurance programs.

Responsibilities

• Verify and validate safety assessment models and software for reactor safety analysis.
• Develop and assess benchmark models and tests for safety evaluations.
• Assess evaluation models using NRC RG 1.203 guidance to ensure safety standards.
• Coordinate safety code verification/validation activities including simulations and benchmarking with IETs/SETs.

Skills

Nuclear safety expertise

Analytical skills

Report writing

Collaboration

Education

Advanced degree in nuclear engineering or related field

Tools

RELAP5-3D

TRACE

MELCOR

SAS4A/SASSYS-1

Python

Fortran

Job description

Senior Safety Verification and Validation Engineer

Type: Contract (12-months)

Contractor Work Model: Remote

About the Role

As a Senior Safety V&V Engineer, you will be instrumental in verifying and validating safety assessment models and software integral to reactor safety analysis and licensing. You will work on developing and assessing benchmark models, ensuring compliance with NRC guidance (RG 1.203), and supporting safety methodology development for next-generation nuclear systems, including Sodium Fast Reactors (SFR).

Key Responsibilities

• Develop and maintain assessment bases, including benchmarks and applicable tests, to support safety evaluations.
• Identify uncertainties within experimental data and develop robust benchmark models.
• Assess evaluation models (EM) using NRC’s RG 1.203 guidance, ensuring safety standards are met.
• Coordinate and execute safety code verification and validation activities, including simulations, Benchmarking with Integral Effect Tests (IETs), and Separate Effect Tests (SETs).
• Support scaling analyses, code applicability determinations, and software commercial-grade dedication.
• Contribute to the development of analytical and computational models, integrating them into transient analysis codes in collaboration with safety analysis teams.
• Review engineering analyses and contribute to safety assessments for licensing documentation.
• Collaborate with interdisciplinary teams to establish safety, performance, and quality requirements for core and reactor systems.
• Support code development, maintenance, and performance evaluation for system transient codes and safety analyses.

Qualifications & Skills

• Extensive experience with nuclear safety software verification, validation, and system transient analysis codes (RELAP5-3D, TRACE, MELCOR, SAS4A/SASSYS-1, SAM, or similar).
• Strong understanding of nuclear thermal-hydraulic fundamentals, reactor dynamics, and transient phenomena.
• Proven expertise with safety analysis methodologies, including experience with NRC RG 1.203.
• Familiarity with EMDAP and regulatory requirements specific to nuclear safety.
• Knowledge of SFR safety methods and experience with other reactor types such as LWRs is highly desirable.
• Proficiency in programming languages such as Fortran, C++, or Python is a strong plus.
• Advanced degree in nuclear engineering or related field, with at least 5 years of relevant experience.
• Demonstrated strong analytical, modeling, and report-writing abilities.
• Experience working within NQA-1 quality assurance programs and multidisciplinary engineering teams.
• Exceptional communication skills, high integrity, and a collaborative mindset.

System One, and its subsidiaries including Joulé and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.

Ref: #161-Managed Staffing Charlotte

System One, and its subsidiaries including Joulé, ALTA IT Services, TeamPeople, and Mountain Ltd., are leaders in delivering outsourced services and workforce solutions across North America. We help clients get work done more efficiently and economically, without compromising quality. System One not only serves as a valued partner for our clients, but we offer eligible employees health and welfare benefits coverage options including medical, dental, vision, spending accounts, life insurance, voluntary plans, as well as participation in a 401(k) plan.

System One is an Equal Opportunity Employer. All qualified applicants will receive consideration for employment without regard to race, color, religion, sex (including pregnancy, childbirth, or related medical conditions), sexual orientation, gender identity, age, national origin, disability, family care or medical leave status, genetic information, veteran status, marital status, or any other characteristic protected by applicable federal, state, or local law.