Principal Probabilistic Risk Assessment Engineer

Hansell Tierney; Mercer Island (WA); Remote; USD 150,000 - 200,000; Full time

Job summary

A premier staffing and recruiting company is assisting a confidential client in the search for a Principal Probabilistic Risk Assessment Engineer. This role will lead PRA and accident analyses to support advanced reactor technologies. The candidate should have extensive experience in risk assessment, excellent communication skills, and technical proficiency in relevant software. The position is remote, with an estimated compensation range of $77–$130 per hour.

Benefits

Three insurance levels

401K + match

Sick leave

Support for energy technology development

Qualifications

• 15+ years of experience in Probabilistic Risk Assessment.
• Knowledgeable of PRA principles and codes.
• Demonstrated technical writing and communication skills.
• Experience with sodium cooled reactors or advanced reactors preferred.

Responsibilities

• Lead PRA and severe accident analyses.
• Develop planning and scheduling for PRA activities.
• Provide technical guidance and participate in peer reviews.
• Prepare topical reports for customers and regulators.

Skills

Probabilistic Risk Assessment

Technical writing

Risk-informed performance-based regulations

Collaboration

Communication

Education

B.S., or M.S. in nuclear, mechanical, electrical, or aerospace engineering

Tools

CAFTA

FRANX

SAPHIRE

GOTHIC

MELCOR

Job description

Overview

We are assisting a confidential client in the search for a Principal Probabilistic Risk Assessment Engineer to support the development of advanced reactor technologies. This role will report directly to the Risk Assessment Manager and will be responsible for leading PRA and severe accident analyses that inform safety, licensing, and design decisions across the organization. The successful candidate will be a technical leader within the Risk Assessment team and will collaborate closely with safety analysts, systems engineers, and subject matter experts to ensure the design of a reliable, robust, and risk-informed facility.

Location: Remote

Length of Assignment: 12 months

Benefits: Three insurance levels, 401K + match, sick leave, and the opportunity to support advanced energy technology development.

Eligibility: U.S. citizens and those authorized to work in the U.S. are encouraged to apply. Work sponsorship is not available at this time.

Responsibilities

• Contribute to the development and execution of PRA activities, both internally and in collaboration with external partners, ensuring alignment with system design, deterministic safety analysis, consequence analysis, and other engineering disciplines.
• Ensure that PRA models and methods are appropriate for the reactor technology and are consistent with applicable regulatory frameworks, guidance documents, and standards, including risk-informed, performance-based approaches.
• Participate in the development of planning and scheduling for PRA related activities.
• Provide technical guidance to engineers and managers on reliability and various PRA-related topics.
• Participate in PRA peer reviews.
• Work on the development of event and fault trees, in-vessel radiological transport models, containment transport models, and mechanistic radiological release categories for PRA models.
• Work with an interdisciplinary team of engineers to establish core and reactor SSC functional, reliability, performance, safety, and quality requirements as well as support the overall design.
• Establish and maintain documentation of model development and analysis results.
• Perform engineering reviews of analyses and other engineering design media.
• Develop fault trees and event trees to reflect most up to date design using CAFTA and FRANX.
• Group similar source terms for assignment to event sequence end states.
• Perform risk integration using the PRA model to report risk metrics and importance measures.
• Perform focused PRA analysis to support trade studies.
• Perform hand calculations using first principles to assess and validate more complex models for system performance, containment performance, and radiological consequences.
• Prepare topical reports describing PRA methods and analytical results for customers and regulators.
• Deliver presentations for internal management and external customers and regulators.

Key Qualifications

• B.S., or M.S. in nuclear, mechanical, electrical, or aerospace engineering (or similar).
• Fifteen years or more of experience in Probabilistic Risk Assessment.
• Knowledge and experience on External Events PRA are preferred.
• Knowledgeable of PRA principles and familiar with the ASME / ANS Non-Light Water PRA standard.
• Knowledge on risk-informed performance-based regulations and applications.
• Knowledgeable of PRA fundamentals in data, human reliability, accident analysis, severe accidents, and source terms assessments.
• Experience with PRA software: CAFTA and FRANX in particular; SAPHIRE, Risk Spectrum, or other similar software still considered valuable.
• Experience with performing assessments using codes such as GOTHIC, MELCOR, RADTRAD, or similar tools is a plus.
• Demonstrated technical writing and communication skills.
• Experience with sodium cooled reactors or other advanced reactors preferred.
• Fluent in spoken and written English language.
• A broad understanding of the various engineering disciplines and how they interrelate in the design of a Nuclear Power Plant.
• High degree of trust, integrity, open communication, respect for others, and teamwork.

Estimated Compensation Range: $77.00–$130.00 per hour. All experience levels considered.

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 (DHS) or Social Security Administration (SSA) 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.