System One · 3 hours ago
Senior Safety Verification and Validation Engineer
United States
Contract
Remote
Senior Level
5+ years expSystem One is a leader in delivering outsourced services and workforce solutions across North America. In this role, you will be responsible for verifying and validating safety assessment models and software integral to reactor safety analysis and licensing, while ensuring compliance with NRC guidance and supporting safety methodology development for next-generation nuclear systems.
Human ResourcesStaffing Agency
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
Qualification
Required
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
Benefits
Health and welfare benefits coverage options including medical
Dental
Vision
Spending accounts
Life insurance
Voluntary plans
Participation in a 401(k) plan
Company
System One
System One is a professional staffing firms.
5001-10000 employees
H1B Sponsorship
System One has a track record of offering H1B sponsorships. Please note that this does not
guarantee sponsorship for this specific role. Below presents additional info for your
reference. (Data Powered by US Department of Labor)
Distribution of Different Job Fields Receiving Sponsorship
Represents job field similar to this job
Trends of Total Sponsorships
2025 (5)
2024 (6)
2023 (9)
2022 (10)
2021 (9)
2020 (5)
Funding
Current Stage
Late StageTotal Funding
$301.8MKey Investors
TruistOaktree Capital ManagementProspect Capital Corporation
2021-01-28Debt Financing· $290M
2020-12-08Private Equity
2016-09-20Acquired
Leadership Team
Troy Gregory
Chief Executive Officer
Dan Moran
Chief Financial Officer
Recent News
2026-01-06
Company data provided by crunchbase