ES&H Academic Graduate Appointee

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States’ security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are dedicated to fostering a culture that values individuals, talents, partnerships, ideas, experiences, and different perspectives, recognizing their importance to the continued success of the Laboratory’s mission.

Pay Range: $5,740- $9,100/month

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting.  An employee’s position within the salary range will be based on several factors including, but not limited to, specific competencies, relevant education, qualifications, certifications, experience, skills, seniority, geographic location, performance, and business or organizational needs.

We are seeking a highly motivated Academic Graduate Appointee to join the Nuclear Criticality Safety Division within the Environment, Safety, and Health (ES&H) Directorate. This role offers the unique opportunity to contribute to groundbreaking research in criticality safety, collaborate with leading experts, and develop innovative solutions to complex technical challenges.

Depending on your assignment, this position may offer a hybrid schedule, blending in-person and virtual presence. You may have the flexibility to work from home one or more days per week.

You will

• Design and oversee the fabrication of equipment to support criticality safety experiments.
• Develop detailed models of laboratory critical and subcritical experiments.
• Collaborate with multidisciplinary teams to gather and analyze material characterizations.
• Create and refine analysis techniques to evaluate experimental data.
• Develop and maintain code for data analysis and modeling.
• Communicate findings effectively through technical documentation and presentations.
• Perform other duties as assigned to support the team’s mission.

• Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship. 
• Bachelor’s or Master’s degree in Nuclear Engineering, Physics, or a related field.
• Experience with radiation transport methods (e.g., MCNP, SCALE, GEANT, COG, Serpent, OpenMC).
• Proficiency in coding languages such as Python or C++.
• Strong communication skills to effectively collaborate and present technical information.
• Ability to work independently and within multidisciplinary teams.
• Flexibility to respond to dynamic and shifting demands.

Qualifications We Desire

• Knowledge of criticality safety integral experiment design.
• In-depth modeling in radiation transport codes.
• Expertise in uncertainty quantification techniques.
• Familiarity with LLNL facilities, programs, and operations.
• Active DOE Q-level clearance.

#LI-Hybrid

Position Information

This is a one-year Academic Graduate Appointee, open to those who have been awarded a degree at the time of the employment offer.

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 core beliefs - visit https://www.llnl.gov/inclusion/our-values

Security Clearance

This position requires a Department of Energy (DOE) Q-level 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.  Q-level clearance requires U.S. citizenship. 

Pre-Employment Drug Test

External applicant(s) selected for this position must pass a post-offer, pre-employment drug test. This includes testing for use of marijuana 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.

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: https://www.llnl.gov/sites/www/files/2023-05/LLNL-Job-Fraud-Statement-Updated-4.26.23.pdf

Equal 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. 

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