Non-Destructive Assay Engineer

We have an opening for a NonDestructive Assay Engineer supporting stockpile stewardship of nuclear materials working in the Nuclear Materials Program. The NonDestructive Assay Engineer will work with technicians engineers and scientists to perform radiological measurements to characterize nuclear materials. You will be responsible for all nondestructive assay operations including operating and maintaining detectors and associated equipment for gamma spectroscopy calorimetry and neutron multiplicity and analysis of collected data for isotopic abundances and mass quantification. This work will be performed on containerized radioactive materials within a highhazard nuclear facility. This position is in the Defense Technologies Engineering Division (DTED) within the Engineering Directorate. DTED provides support to Strategic Deterrence (SD) Programs.

This position may offer a hybrid schedule blending inperson and virtual presence. You may have the flexibility to work from home one or more days per week.

This position will be filled at either level based on knowledge and related experience as assessed by the hiring team. Additional job responsibilities (outlined below) will be assigned if hired at the higher level.

You will

• Perform radiological measurements and analysis on nuclear materials.
• Perform material movements for transfers of accountable nuclear material.
• Participate in the expansion of measurement capabilities by procuring installing maintaining and upgrading instruments contributing to safety documentation writing operational procedures training operators and implementing process improvements.
• Prepare written analyses verbal briefings and other products to effectively capture and communicate measurement results.
• Present progress and findings to team members and internal customers.
• Complete training to become a Certified Fissile Material Handler and maintain status.
• Maintain progress on assigned project(s) while managing priorities and adhering to defined practices and procedures.
• Perform other duties as assigned.

Additional job responsibilities at the SES.2 level

• Perform advanced measurement analysis on items with measurement difficulties.
• Provide input on technical issues for specific projects and to external customers; recommending improvements and processes as appropriate.
• Provide technical solutions to moderately complex problems that typically require the use of established methods but could involve innovative methods.
• Perform independent studies to characterize detector performance using approaches within generally established methods.

Qualifications :

• Ability to secure and maintain a U.S. DOE Qlevel security clearance which requires U.S. citizenship. 
• Bachelors degree in Nuclear Engineering Chemical Engineering Mechanical Engineering or a related field or the equivalent combination of education and related experience.
• Fundamental knowledge of concepts techniques practices and procedures to perform radiological measurements to characterize nuclear materials.
• Willingness to work with hazardous materials.
• Experience operating computers to collect analyze and document scientific results.
• Ability to work independently and as a member of a team.
• Sufficient verbal and written communication skills to collaborate effectively in a team environment and present and explain technical information.

Additional qualifications at the SES.2 level

• Experience performing radiological measurements and ability to perform advanced radiological measurement data analysis for material characterization.
• Comprehensive and working knowledge of concepts of radiation interactions nuclear physics radioactive decay counting statistics measurement uncertainty gamma spectroscopy calorimetry or neutron counting.
• Proficient verbal and written communication skills necessary to effectively collaborate in a team environment present and explain technical information and interact with a diverse set of scientists engineers and other technical and administrative staff in a research and development setting.

Qualifications We Desire

• Advanced degree in Nuclear Engineering Chemical Engineering Mechanical Engineering or a related field.
• Experience with gamma spectroscopy software such as PeakEasy MGA and FRAM.
• Experience working with hazardous materials.
• Experience handling radioactive pyrophoric or other hazardous materials.
• Experience troubleshooting and maintaining instruments.

Additional Information :

#LIHybrid

Position Information

This is a Career Indefinite position open to Lab employees and external candidates.

Why Lawrence Livermore National Laboratory

• Included in 2025 Best Places to Work by Glassdoor!
• Flexible Benefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules *depending on project needs)
• Our values visit  Clearance

  This position requires a Department of Energy (DOE) Qlevel clearance.  If you are selected we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also all L or Q cleared employees are subject to random drug testing.  Qlevel clearance requires U.S. citizenship. 

  PreEmployment Drug Test

  External applicant(s) selected for this position must pass a postoffer preemployment drug test. This includes testing for use of as Federal Law applies to us as a Federal Contractor.

  Wireless and Medical Devices

  Per the Department of Energy (DOE) Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession.  This includes but not limited to cell phones tablets fitness devices wireless headphones and other Bluetooth/wireless enabled devices.  

  If you use a medical device which pairs with a mobile device you must still follow the rules concerning the mobile device in individual sections within Limited Areas.  Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas Secure Space and Transit/Buffer Space within buildings.

  PrePlacement Medical Exam

  A job related preplacement medical examination may be required.

  How to identify fake job advertisements

  Please be aware of recruitment scams where people or entities are misusing the name of Lawrence Livermore National Laboratory (LLNL) to post fake job advertisements. LLNL never extends an offer without a personal interview and will never charge a fee for joining our company. All current job openings are displayed on the Career Page under Find Your Job of our website. If you have encountered a job posting or have been approached with a job offer that you suspect may be fraudulent we strongly recommend you do not respond.

  To learn more about recruitment scams:  Employment Opportunity

  We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. All qualified applicants will receive consideration for employment without regard to race color religion marital status national origin ancestry sex sexual orientation gender identity disability medical condition pregnancy protected veteran status age citizenship or any other characteristic protected by applicable laws.

  Reasonable Accommodation

  Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory.  If you need a reasonable accommodation during the application or the recruiting process please use our online form to submit a request. 

  California Privacy Notice

  The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitles job applicants employees and nonemployee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.

  
  

  Remote Work :

  No

  
  

  Employment Type :

  Fulltime