ESH Undergraduate Intern Fall 2026

We have an opening for an Undergraduate Student in the Nuclear Criticality Safety Division (NCSD) in the Environment Safety and Health (ESH) Directorate.  You will work under the direction of the NCSD to complete a project or series of projects that combines hands-on experience with technical knowledge.  This individual will interact with all levels of personnel at the Laboratory including managers experimenters technicians and other personnel that may be outside the ESH directorate.

This position offers a hybrid schedule blending in-person (summer) and virtual (school year) presence.

You will 

• Participate in a multi-laboratory NNSA research project on a semi-remote basis.
• Model radiation and imaging detector responses of nuclear systems.
• Utilize Python or C nuclear interaction physics and nuclear data formatting.
• Perform laboratory experiments and interpret results to build and validate detector models and response functions.
• Perform technical analysis of data and apply effective analytical and problem-solving skills to complex problems.
• Perform technical/scientific assignments at a basic to moderate degree of complexity and provide advanced technical support to engineers and scientists.
• Perform independent technical or operational tasks and projects and/or support research efforts.
• Provide comprehensive support to LLNL programs operations and/or research in collaboration with senior staff members to resolve moderately complex to complex issues.
• Perform other duties as assigned.

Qualifications :

• Must be eligible to access the Laboratory in compliance with Section 3112 of the National Defense Authorization Act (NDAA). See Additional Information section below for details.
• Must be a college or university student pursuing an undergraduate degree in nuclear engineering or a relevant scientific discipline (e.g. mechanical/systems engineering nuclear physics particle physics radiochemistry) or equivalent combination of education and prior relevant experience.
• Experience in neutron detection for nuclear security applications. 
• Understanding of experimental nuclear physics.
• Experience in experimental design techniques and execution including analytical techniques in nuclear diagnostics.
• Experience with Python or C.
• Ability to apply scientific methods to solve a defined problem or study question.
• Proficient verbal and written communication skills and ability to work independently as well as in a team environment.

Qualifications We Desire

• Ability to apply basic and fundamental safety concepts in a work environment.
• Experience in research manufacturing and/or laboratory-type work settings.
• Working knowledge of coupling simulation codes integrating updated nuclear data libraries evaluating (αn) cross sections and enhancing α-particle transport physics using expanded experimental data. 

Pay Range

$23.26 - $31.62 Hourly for the 705.1 level

Additional Information :

#LI-Hybrid

All your information will be kept confidential according to EEO guidelines.

Why Lawrence Livermore National Laboratory

• Included in 2026 Best Places to Work by Glassdoor!
• Holiday Pay
• Sick leave accrual
• Individual 401(k) contributions
• Our values - visit  Clearance

  None required.  However this position involves U.S. Export Control; this work must be performed by a U.S. person (U.S. citizen U.S. lawful permanent resident U.S. national or U.S. protected individual (e.g. refugee asylee)).

  If your assignment is longer than 179 days cumulatively within a calendar year you must go through the Personal Identity Verification process.  This process includes completing an online background investigation form and receiving approval of the background check.  (This process does not apply to foreign nationals.)

   

  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

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  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.

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  Remote Work :

  No

  
  

  Employment Type :

  Intern