Validation engineer Jobs in Seattle, WA

Our client, a pioneering energy company developing advanced technologies in the nuclear and clean energy space, is seeking a Senior Safety Verification and Validation Engineer. This role supports the verification and validation of software and evaluation models used for Licensing Basis Events (LBEs), Design Basis Accidents (DBAs), and nuclear safety analysis.

Location: Bellevue, WA – Remote
Duration: 12+ months
Compensation: $65.00 - $95.00 per hour.
Additional Compensation: This position is not eligible for bonus or incentive compensation.
Benefits: Benefits available to eligible employees or consultants may include medical, dental, and vision insurance, paid sick leave, retirement savings plans, and other employer sponsored programs.

US citizens and those authorized to work in the US are encouraged to apply.
Work sponsorship is not available currently.

Summary:
• Perform verification and validation of safety analysis software and evaluation models
• Develop benchmark models and assessment bases for nuclear safety analysis
• Support reactor transient analysis and system code development
• Contribute to scaling analysis, code assessment, and validation activities
• Collaborate with multidisciplinary engineering teams across design and safety functions

Key Responsibilities:
• Perform safety verification and validation activities aligned with NRC RG 1.203
• Develop assessment bases, identify applicable tests, and evaluate model uncertainties
• Design and execute verification and validation test programs including SETs and IETs
• Support scaling analysis and code applicability determinations
• Develop and maintain system transient analysis codes
• Perform reactor transient analyses and benchmarking activities
• Collaborate with engineering teams to define system and reactor requirements
• Conduct engineering reviews of analyses, models, and design documentation

Qualifications:
• Extensive experience in nuclear safety software verification and validation and system transient analysis
• Familiarity with EMDAP and NRC Regulatory Guide 1.203
• Strong understanding of thermal-hydraulics, reactor dynamics, and transient phenomena
• Experience with safety analysis tools such as RELAP5-3D, TRACE, MELCOR, SAS4A/SASSYS-1, SAM, or similar
• Knowledge of nuclear regulatory requirements and risk-informed performance-based frameworks
• Experience working under NQA-1 quality assurance programs
• Strong analytical, quantitative, and modeling skills
• Experience collaborating in multidisciplinary engineering teams
• M.S. or Ph.D. in Nuclear Engineering or related field with 5+ years of relevant experience

Nice to Have:
• Experience with sodium fast reactor (SFR) safety methods
• Experience with scaling methodologies and advanced safety analysis techniques
• Programming experience in Fortran, C++, or Python
• Experience with non-light water reactor technologies

About Hansell Tierney:
Hansell Tierney is one of the premier staffing and recruiting companies in the Pacific Northwest. Launched in 2001, we are a woman-owned business that serves and staffs Northwest organizations by doing things the right way, not just the easiest way. Hansell Tierney partners with candidates and clients to match the best candidates with interesting local opportunities. We navigate every relationship with the highest level of discretion and service while holding ourselves accountable to our promises. Our business thrives on our deep understanding of the job market and our ability to skillfully tailor our recruitment process to meet our clients’ unique needs.

This Organization Participates in E-Verify
This employer participates in E-Verify and will provide the federal government with your Form I-9 information to confirm that you are authorized to work in the U.S. If E-Verify cannot confirm that you are authorized to work, this employer is required to give you written instructions and an opportunity to contact the Department of Homeland Security or Social Security Administration so you can begin to resolve the issue before the employer can take any action against you, including terminating your employment. Employers can only use E-Verify once you have accepted a job offer and completed the Form I-9.

Compensation and Benefits Disclosure
The compensation range listed above represents the expected range for this position. Actual compensation may vary based on factors including experience, skills, internal equity, and geographic location.
Benefits available to eligible employees or consultants may include medical, dental, and vision insurance, paid sick leave, retirement savings plans, paid time off, and other employer-sponsored programs.