Nuclear Criticality Safety Engineer Job at Navarro Inc (Oak Ridge)

R&d electrical engineer - nuclear safety assessment

We are seeking an R&D Electrical Engineer with nuclear weapons experience to ass...

Location

United States , Albuquerque

Salary:

114000.00 - 227500.00 USD / Year

Sandia National Laboratories

Expiration Date

Until further notice

Requirements

Bachelor's degree in a relevant discipline, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development
Ability to obtain and maintain a DOE Q clearance
Graduate degree in Electrical Engineering or a highly related field where an independent research project was a graduation requirement
Ability to work independently and collaborate well in a multidisciplinary team of designers and test engineers
Outstanding verbal and written skills, including the ability to develop and present briefings
Experience working on engineering design, qualification, production, or related modeling/simulation projects
Expertise in electrical circuit design and analysis: Proficiency in power electronics, micro-electronics, integrated circuits, and analog and digital circuit design applied to safety-critical systems, including RF, optical, or radar sensors
Proficiency in safety-analysis methods: Strong understanding of fault-tree analysis, failure-modes-and-effects analysis, and margin quantification, with a background in reliability engineering or advanced margin-quantification frameworks
Experience with systems engineering: Demonstrated experience in systems engineering for nuclear or high-consequence weapons systems, including familiarity with the SNL nuclear weapon product realization process and nuclear weapon safety standards and related DOE orders
System-of-systems thinking: Experience applying system-of-systems thinking to electrical integration, ensuring end-to-end functionality

Job Responsibility

Independently review detailed technical documents and identify salient issues related to electrical design and testing in the context of nuclear safety
Engage with weapon system, component design, assurance, and other surety organizations, with a focus on electrical components and systems
Maintain awareness of issues related to design, development, production, maintenance, and dismantlement of weapon systems, particularly in the electrical domain
Assess tests, materials, and components for adequacy against requirements, emphasizing electrical testing and analysis
Evaluate procedures, product specifications, and standards for compliance with nuclear safety requirements
Lead independent safety assessments of nuclear weapon systems and components, analyzing responses under thermal, shock, vibration, and EMI/EMC environments, utilizing your expertise in electrical circuit design and analysis
Define problem scope and requirements, develop technical approaches, and apply quantitative and qualitative methods (e.g., fault-tree analysis, failure-modes-and-effects analysis, margin quantification)
Design experiments or simulations to evaluate safety-critical subsystems, collaborating with system and test engineers to verify requirements, particularly in electrical testing
Develop analytical frameworks and digital models to support risk-informed decisions leveraging your experience in system-of-systems thinking for electrical integration
Mentor junior engineers in safety-analysis techniques and review their deliverables for technical accuracy

What we offer

Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
Extraordinary co-workers
Some of the best tools, equipment, and research facilities in the world
Career advancement and enrichment opportunities
Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home)
Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance

Fulltime

Cleared Senior/Principal Systems Engineer - Nuclear Safety Assessment

We are seeking a dedicated R&D Systems Engineer with nuclear weapons experience ...

Location

United States , Albuquerque

Salary:

114000.00 - 227500.00 USD / Year

Sandia National Laboratories

Expiration Date

Until further notice

Requirements

Bachelor's degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development
An active DOE Q clearance, or equivalent is required to start
High proficiency in foundational science and engineering principles, including safety-analysis methods such as fault-tree analysis, failure modes and effects analysis (FMEA), and margin quantification
Experience with systems engineering for nuclear or high-consequence weapons systems, including applying system-of-systems thinking to ensure end-to-end functionality
Proven ability to lead complex technical projects on schedule, mentor team members, and deliver high-quality products, with demonstrated leadership experience as a project manager, technical lead, principal investigator, or similar role
Understanding of nuclear surety and reliability requirements, including familiarity with nuclear weapon safety standards, related DOE orders, and the SNL nuclear weapon product realization process
Background in reliability engineering or advanced margin-quantification frameworks
Excellent technical writing and executive presentation skills
Proven ability to work on challenging engineering problems in a fast-paced, collaborative team environment requiring extensive cross-organizational teamwork

Job Responsibility

Independently review detailed technical documents and identify salient issues related to nuclear safety
Engage with weapon system, component design, assurance, and other surety organizations
Maintain awareness of issues related to design, development, production, maintenance, and dismantlement of weapon systems
Assess tests, materials, and components for adequacy against requirements
Evaluate procedures, product specifications, and standards for compliance
Lead independent safety assessments of nuclear weapon systems and components, analyzing responses under thermal, shock, vibration, and EMI/EMC environments
Define problem scope and requirements, develop technical approaches, and apply quantitative and qualitative methods (e.g., fault-tree, FMEA, margin quantification)
Design experiments or simulations to evaluate safety-critical subsystems, collaborating with system and test engineers to verify requirements
Develop analytical frameworks and digital models to support risk-informed decisions
Mentor junior engineers in safety-analysis techniques and review their deliverables for technical accuracy

What we offer

Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
Extraordinary co-workers
Some of the best tools, equipment, and research facilities in the world
Career advancement and enrichment opportunities
Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home)
Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance

Fulltime

Principal Engineer-Nuclear

As a Principal Engineer - Nuclear you will be taking on a new challenge in guidi...

Location

United States , Lewis Center

Salary:

Not provided

ATS Automation Tooling Systems Inc.

Expiration Date

Until further notice

Requirements

Bachelor’s Degree in Engineering Physics, Engineering Science, Electrical, Mechanical or Mechatronics Engineering or equivalent
A professional engineering license
10+ years of experience in nuclear automated tooling design, development and qualifications of automated systems custom machinery or industrial equipment
Thorough understanding of nuclear tooling engineering and field issues, precision engineering principles and ASME codes is necessary
In-depth knowledge of and use of nuclear equipment quality standards (NQA-1, ASME BPV Section III)
Thorough understanding of machine design and build, machine controls, structured problem solving, statistical analysis, and precision engineering principles
Good written and oral communication skills and ability to lead or work as part of a multi-disciplinary project team
Will be required to travel to licensed Nuclear Facilities and be registered as a Radiation Worker (US) and/or a Nuclear Energy Worker (Canada)
Must be capable of obtaining Security Clearance at nuclear sites globally
Work in conformance with divisional health, safety and environmental procedures and compliance to legislative requirements

Job Responsibility

Technical Leadership and Subject Matter Expertise: Provides Subject Matter Expert oversight and opinion to support ATS’s business in key focus areas for nuclear (e.g., SMRs, PWRs, Fuel Fabrication)
Use technical knowledge of company's and/or industry technologies to lead the development of successful approaches to critical problems and broad design issues
Participate and, where needed, lead the development of innovative programs to meet nuclear industry demand
Engineering Direction and Support: Provide technical direction, advice, and guidance to the engineering/design departments
Provide engineering support to solve problems and advance innovation including providing conceptual and detail designs, performing calculations and analysis, providing evaluation, and defining and participating in testing
Provides, and coordinates other disciplines as needed, to solve equipment problems
Project and Proposal Development: Support nuclear projects by participating in design reviews and providing solutions to complex problems
Support Applications Engineering to prepare concepts for new proposals
Prepares concept designs and assembles preliminary pricing for critical proposals
Working with project managers, assists driving successful completion of the work to meet design requirements and maintain cost and schedule

What we offer

Flexible work schedules
Employee events
Free coffee beverages
Employee referral program
Safety shoe programs
Competitive starting salaries
Overtime pay eligibility
Paid vacation
Company paid short- and long-term disability and life insurance
Comprehensive health benefits

Senior Mechanical Engineer - Nuclear

As a Senior Mechanical Designer Engineer - Nuclear you will be taking on a new c...

Location

United States , Lewis Center

Salary:

Not provided

ATS Automation Tooling Systems Inc.

Expiration Date

Until further notice

Requirements

Bachelor’s Degree in Mechanical Engineering, Science or Technology
Professional Engineer License would be an asset
10+ years of experience in engineering design, development and qualifications of automated systems custom machinery or industrial equipment
5+ years of experience in nuclear tooling development and testing, preferably including field support and experience
In-depth knowledge of and use of nuclear equipment quality standards (NQA-1, ASME BPV Section III)
Thorough understanding of machine design and build, machine controls, structured problem solving, statistical analysis, and precision engineering principles
Good written and oral communication skills and ability to lead or work as part of a multi-disciplinary project team
Work in conformance with divisional health, safety and environmental procedures and compliance to legislative requirements
Refrain from removing or altering safety devices or guarding unless hazardous energies are controlled through lockout-tagout methods
Report any unsafe conditions or unsafe acts, defects in any equipment or protective device, and any accidents/incidents to the supervisor

Job Responsibility

Design and support the development of Automated Equipment for industrial and nuclear projects
Perform engineering calculations with respect to strength of materials, speeds, horsepower, temperature, pressure, force, etc. as related to machine and tool designs
Analyze engineering drawings and specifications to determine shape, dimensions, hardness, etc. in the development of equipment, processes, and products
Define tools, fixtures, and equipment to be used in fabrication and assembly of mechanical components and complete assemblies
Produce working drawings, detail drawings, and bills of materials for equipment, sub-assemblies, or products, using AutoCAD and SOLIDWORKS
Specify appropriate purchase components for mechanical assemblies and create requisitions with appropriate delivery dates
Analyze designs and systems for compliance with applicable standards (i.e., OSHA, CE, or customer-specific)
Strictly follow ASME NQA-1 Quality requirements as defined within the manual and procedures
Work cross functionally with other teams
Review electrical requirements with respect to input and output devices with electrical designers

What we offer

Flexible work schedules
Employee events
Free coffee beverages
Employee referral program
Safety shoe programs
Overtime pay eligibility
Paid vacation
Company paid short- and long-term disability and life insurance
Comprehensive health benefits
401K matching program

Senior/Principal R&D Mechanical Engineer - Nuclear Safety Assurance

Join our dynamic team as an R&D Mechanical Engineer, where your expertise will p...

Location

United States , Albuquerque

Salary:

114000.00 - 227500.00 USD / Year

Sandia National Laboratories

Expiration Date

Until further notice

Requirements

A bachelor's degree in a relevant discipline and five (5) years of directly relevant experience, or an equivalent combination of directly relevant education and engineering or scientific experience that demonstrates the knowledge, skills, and ability to perform independent research and development
Ability to obtain and maintain a DOE Q clearance

Job Responsibility

Use engineering analysis tools to evaluate safety margins and support the development and qualification of components or systems to assure nuclear safety
Analyze the capability of components and systems to meet nuclear safety requirements, particularly their ability to withstand stress from conditions such as temperature, load, motion, shock, vibration, pressure, and humidity
Engage with engineering drawings and CAD tools to support design and analysis efforts CREO/SolidWorks and PDMLink to design, model, and lead the product
Develop expertise in the design and functionality of safety-critical components and systems, including mechanisms such as strong links, LACs, and firing subsystems, to fully evaluate component performance across normal and abnormal environments
Utilize your expertise to identify safety-critical features and ensure that designs meet assured safety standards
Write nuclear safety specifications and prepare documentation for requirements outlined in various Realized Product Procedures (RPPs), which are essential for the weapon realization life cycle
Partner with subject matter experts to create the technical basis from analyses and test data that demonstrates safety-critical components are safe for their intended environments
Work closely with the nuclear safety system lead, design and production teams, and other key partners across the Nuclear Security Enterprise (e.g., Kansas City NSC, Pantex) to develop solutions for a wide range of technical challenges
Help develop nuclear safety fault trees for components and systems, applying research to the design, development, analysis, and testing of mechanical, electromechanical, and piezoelectric systems

What we offer

Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home)
Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance

Fulltime

Electrical Engineer

Assystem has an exciting opportunity for a Electrical Engineer to join our expan...

Location

United Kingdom , Newcastle upon Tyne

Salary:

Not provided

ASSYSTEM

Expiration Date

Until further notice

Requirements

Proven electrical engineering experience in regulated, safety-critical sectors—bringing hands-on expertise from industries like nuclear, defence, or energy
Strong grasp of electrical distribution systems—including protection principles and best-practice installation methods
Skilled in creating core electrical deliverables such as SLDs, cable calculations, equipment specs, and protection settings
Familiar with nuclear design expectations—from safety classifications and redundancy to segregation and qualification requirements
Knowledgeable in key UK and international standards, including BS 7671, IEC/BS EN, ENA docs, and more
Excellent communicator and collaborator—experienced working in multi-disciplinary project environments
BPSS and SC required
Ability to travel Assystem offices and customer sites within UK
To undertake work packages supporting major UK and international Nuclear Clients
Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level

Job Responsibility

Develop Electrical System Designs: Design electrical systems, including single-line diagrams, load schedules, cable routing, earthing and bonding arrangements, and equipment specifications
Produce Design Documentation: Create essential design documents such as electrical calculations, protection schemes, coordination studies, panel designs, and installation drawings
Apply Nuclear Safety Requirements: Interpret and apply nuclear safety requirements, ensuring electrical systems support reliability, maintainability, and defense in depth
Undertake Power System Studies: Conduct power system studies including load flow, fault level analysis, discrimination, and arc flash assessments when required
Select Electrical Equipment: Choose appropriate electrical equipment like LV/MV switchgear, transformers, UPS systems, motors, drives, and distribution components suited for nuclear environments
Ensure Design Compliance: Ensure designs comply with relevant standards such as BS EN 61508, BS 7671, IEC 60364, and nuclear site-specific requirements
Collaborate Across Teams: Work closely with EC&I, control systems, mechanical, civil, and safety engineers to ensure seamless integration across interfaces
Support Control Systems: Support the electrical aspects of instrumentation and control systems, including power supplies, segregation, EMC considerations, and environmental qualification
Engage in Design Reviews: Participate in design reviews, HAZOPs, failure mode assessments, and engineering substantiation activities to optimize safety and performance
Provide Support During Manufacturing & Commissioning: Support manufacturing, FAT, SAT, and commissioning phases, resolving electrical design issues and ensuring traceability to requirements

What we offer

Attractive social benefits, including an engaging Employee Committee and holiday bonuses
Ongoing training with numerous career opportunities
Hybrid work: 1-2 days remote per week

Fulltime

Electrical Engineer

Assystem has an exciting opportunity for a Electrical Engineer to join our expan...

Location

United Kingdom , Bristol

Salary:

Not provided

ASSYSTEM

Expiration Date

Until further notice

Requirements

Proven electrical engineering experience in regulated, safety-critical sectors—bringing hands-on expertise from industries like nuclear, defence, or energy
Strong grasp of electrical distribution systems—including protection principles and best-practice installation methods
Skilled in creating core electrical deliverables such as SLDs, cable calculations, equipment specs, and protection settings
Familiar with nuclear design expectations—from safety classifications and redundancy to segregation and qualification requirements
Knowledgeable in key UK and international standards, including BS 7671, IEC/BS EN, ENA docs, and more
Excellent communicator and collaborator—experienced working in multi-disciplinary project environments
BPSS and SC required
Ability to travel Assystem offices and customer sites within UK
To undertake work packages supporting major UK and international Nuclear Clients
Due to the nature of work to be undertaken applicants will be required to meet certain residency criteria in order to attain a minimum level of UK security clearance if not already security cleared to a minimum SC level

Job Responsibility

Develop Electrical System Designs: Design electrical systems, including single-line diagrams, load schedules, cable routing, earthing and bonding arrangements, and equipment specifications
Produce Design Documentation: Create essential design documents such as electrical calculations, protection schemes, coordination studies, panel designs, and installation drawings
Apply Nuclear Safety Requirements: Interpret and apply nuclear safety requirements, ensuring electrical systems support reliability, maintainability, and defense in depth
Undertake Power System Studies: Conduct power system studies including load flow, fault level analysis, discrimination, and arc flash assessments when required
Select Electrical Equipment: Choose appropriate electrical equipment like LV/MV switchgear, transformers, UPS systems, motors, drives, and distribution components suited for nuclear environments
Ensure Design Compliance: Ensure designs comply with relevant standards such as BS EN 61508, BS 7671, IEC 60364, and nuclear site-specific requirements
Collaborate Across Teams: Work closely with EC&I, control systems, mechanical, civil, and safety engineers to ensure seamless integration across interfaces
Support Control Systems: Support the electrical aspects of instrumentation and control systems, including power supplies, segregation, EMC considerations, and environmental qualification
Engage in Design Reviews: Participate in design reviews, HAZOPs, failure mode assessments, and engineering substantiation activities to optimize safety and performance
Provide Support During Manufacturing & Commissioning: Support manufacturing, FAT, SAT, and commissioning phases, resolving electrical design issues and ensuring traceability to requirements

What we offer

Attractive social benefits, including an engaging Employee Committee and holiday bonuses
Ongoing training with numerous career opportunities
Hybrid work: 1-2 days remote per week

Fulltime

Nuclear Engineering Operations Manager

The role is accountable for the reliable delivery of engineering-led services ac...

Location

United Kingdom , Bristol

Salary:

Not provided

Amentum

Expiration Date

Until further notice

Requirements

Technical competence and experience in Engineering or Science. Demonstrated through Engineering or Scientific Degree
Experience managing individual performance and delivering measurable improvements in quality and efficiency
Significant experience working in a nuclear engineering / science role
Strong problem-solving, analytical, and strategic thinking abilities
Strong awareness of engineering risk, safety, and quality requirements. An ability to critically assess complex technical and safety arguments, based upon knowledge and understanding and communicate the findings effectively
Ability to work effectively across a matrix organisation
Ability to clearly communicate with customers and stakeholders both verbally and in written form
Hold or working towards discipline Chartership

Job Responsibility

People management – leading a small team of engineers and scientists managing performance, development and capability
Coach and mentor team members and delivery partners in operational excellence
Drive a culture of continuous improvement, learning from incidents and delivery outcomes
Champion customer-centric thinking and outcome-focused delivery
Work alongside the Project Management Office to ensure accuracy in planning and forecasting for area of responsibility
Provide nuclear engineering and safety case support to projects, contracts, and operational teams across IA&R
Support the customer with technical advice, problem-solving, and assurance
Ensure engineering standards, quality, and security requirements are met
Manage performance and deliverables to drive improvements in quality and efficiency
Build and maintain strong, trusted relationships with customers in the defence nuclear industry, regulated entities, and external partners

What we offer

Free single medical cover and digital GP service
Enhanced parental leave pay
Free membership of employee assistance and parental programmes
Reimbursement towards relevant professional development and memberships
Matched-funding
Paid volunteering time
Charitable donations
Flexible working hours, patterns and locations

Fulltime

Nuclear Criticality Safety Engineer

Navarro Inc

Location:
United States , Oak Ridge ▼
Paducah
Portsmouth

Category:
Research and Development

Contract Type:
Not provided

Salary:

Job Description:

Job Responsibility:

Requirements:

Additional Information:

Job Posted:
March 13, 2026

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R&d electrical engineer - nuclear safety assessment