Napakiak Ventures LLC · 1 day ago
Criticality Safety Engineer – Nuclear Centrifuge Program
Oak Ridge, TN
Full-time
Onsite
Entry, Mid, Senior Level
1+ years expNapakiak Environmental and Construction (NEC) is a leading provider of information technology and environmental services. They are seeking a Criticality Safety Engineer to support a nuclear centrifuge manufacturing and enrichment program, focusing on criticality safety analysis and controls as the program transitions into production.
Construction
No H1B
Security Clearance RequiredU.S. Citizen Only
Responsibilities
Develop, implement, and maintain the criticality safety program for centrifuge manufacturing, testing, enrichment, and associated material handling operations
Perform and document nuclear criticality safety analyses (NCSAs) in accordance with DOE Orders, 10 CFR 830, and applicable consensus standards (e.g., ANSI/ANS-8 series)
Define, evaluate, and maintain criticality safety controls, limits, and requirements for fissile material processes, equipment, and facility layouts
Support preparation and defense of Documented Safety Analysis (DSA) and Technical Safety Requirement (TSR) content related to criticality safety
Support DOE nuclear authorization activities by providing technical justification for criticality safety assumptions, controls, and margins
Lead or support Unreviewed Safety Question (USQ) Determinations and change evaluations impacting fissile material form, mass, moderation, geometry, or operations
Evaluate design changes, process modifications, and abnormal conditions to ensure continued compliance with criticality safety requirements
Support startup, testing, and operational readiness reviews, ensuring criticality safety assumptions remain valid as the facility transitions into production
Collaborate closely with engineering, manufacturing, operations, quality, and nuclear safety organizations to integrate criticality safety into facility and process design
Interface with federal regulators and reviewers to explain criticality safety methodology, assumptions, and regulatory posture
Support development of long-term criticality safety strategy as the program scales and evolves
Qualification
Required
Bachelor's degree in Nuclear Engineering strongly preferred; other engineering or physical science degrees considered with relevant criticality safety experience
U.S. citizenship required
Ability to obtain and maintain a government security clearance, as required
Strong technical writing skills and ability to communicate complex safety analyses to regulators and stakeholders
Experience supporting nuclear criticality safety analyses or safety basis documentation
Familiarity with DOE nuclear safety requirements and ANSI/ANS criticality safety standards
Experience supporting design reviews or process hazard evaluations involving fissile material
Demonstrated experience authoring and maintaining NCSAs and criticality safety documentation
Hands-on experience supporting USQs, safety basis updates, or operational authorization
Experience supporting nuclear facility startup, testing, or operations involving enriched uranium
Extensive experience leading criticality safety programs for complex nuclear facilities
Deep understanding of DOE nuclear authorization processes and regulator expectations for criticality safety
Proven ability to define criticality safety strategy, mentor engineers, and guide facilities through initial authorization and operational expansion
Experience briefing regulators and senior leadership on criticality safety posture and risk
Company
Napakiak Ventures LLC
Napakiak Ventures is focused on offering our clients innovative scientific, engineering and technical solutions of the highest quality in the fields of health and the environment.
2-10 employees
Funding
Current Stage
Early StageCompany data provided by crunchbase