LLNL
Showing 42 Science positions
Advanced Engineering Analysis Group Leader
We have an opening for a Group Leader for the Advanced Engineering Analysis Group (AEAG) within the Applied Engineering Mechanics (AEM) Section. The g...
Senior Biosafety and Biogovernance Manager
We have an opening for a Senior Biosafety and Biogovernance Manager  to lead the Biosafety and Biogovernance Functional Area (BBFA) at LLNL. ...
Criticality Safety Engineer
We have an opening for a  Criticality Safety Engineer.  You will contribute to the design, development, and testing of nuclear equipment and...
ES&H Business Architect Manager
The Environment, Safety, and Health (ES&H) Directorate has an opening for a Business Architect Manager .  ES&H is a multidisciplinary directorate...
Deep Learning for Earth System Modeling Evaluation - Postdoctoral Researcher
We have an opening for a Postdoctoral Researcher in Deep Learning for Earth System Modeling who will conduct cutting edge research at the intersection...
Spacecraft Systems Engineer
We have multiple openings for Spacecraft Systems Engineers  to provide spacecraft subject matter expertise as part of a multi-disciplinary t...
Work Planning & Control Maintenance Planning and Scheduling Integration Manager
We have an opening for a  Work Planning and Control (WP&C) Maintenance Planning and Scheduling Integration Manager  to lead efforts in imple...
Administrative Specialist - Active Security Clearance Required
We have multiple openings for Administrative Specialists in the Strategic Deterrence Directorate. Working under limited supervision, you will manage a...
Subcontract Analyst
LLNS is seeking the services of a Subcontract Analyst to support the Global Security Directorate in its mission to make the nation and the world more ...
Design Physicist
We are seeking exceptional Physical Scientists  and Engineers  with a background in fields such as plasma physics, radiation transport,...
Field Health Physicist
We have an opening for a Health Physicist in the Environment, Safety and Health. You will provide health physics (HP) support to LLNL programs to ensu...
Safety Basis Analyst
We are seeking a  Safety Basis Analyst  to support implementation of 10 CFR 830, Subpart B, and other Department of Energy (DOE) and LLNL re...
Senior Mechanical Engineer - Active Clearance Required
We have multiple openings for Senior Mechanical Engineers to participate in new and ongoing projects. We provide nuclear weapon engineering design exp...
Document Coordinator - Active Security Clearance Required
Job Description We have multiple openings for  Weapons Production Group (WPG) Document Coordinators  to work in a dynamic and fast-paced env...
Technical Trainer - Environment Safety & Health
We have an opening for a Technical Trainer in the Safety Education and Training Office. In this role, in close collaboration with instructional design...
Computational Biology - Postdoctoral Researcher
Note: This is a two-year Postdoctoral appointment with the possibility of extension to a maximum of three years. We have an opening for a Postdoctoral...
Metal Casting Scientist/Engineer
We have an opening for a Metal Casting Scientist/Engineer to perform a full range of moderate to complex tasks in the area of metal casting research.&...
Occupational Health Physician
We have an opening for an Occupational Health Physician . You will provide a range of specialized medical services for work-related injuries, examinat...
Superblock Electrical Engineer
We have an opening for a Superblock Electrical Engineer to play a key role in advancing next‑generation weapons technologies in direct support of the ...
Product Realization Team (PRT) Lead - Active Security Clearance required
We have an opening for a Product Realization Team (PRT) Lead  for the W87-0 Program’s High Explosives (HE) PRT. You will lead the PRT to develop ...
System Engineer
We have multiple openings for a System Engineer to support the Warhead Modernization Programs within the Systems Engineering and Integration (SE&I) gr...
Sr. System Engineer - Active Security Clearance Required
We have multiple openings for a Senior System Engineer to support the Warhead Modernization Programs. Your primary focus will be to provide support fo...
Senior Optical Component Materials Scientist
We have an opening for a Senior Optical Component Materials Scientist to be a project manager of a multi-disciplinary team in the final process develo...
Cost/Price Analyst
We have an opening for a Cost/Price Analyst.  You will perform financial, cost, and price analysis in support of a wide range of procurements wit...
Design Physics Division - Postdoctoral Researcher
We have multiple openings for Design Physics - Postdoctoral Researchers .  We invite PhD graduates from a variety of STEM fields (including, but ...
Weapons Infrastructure Project Engineer
We have an opening for a Weapons Infrastructure Project Engineer . You will plan, manage, and execute equipment recapitalization projects to support w...
Nuclear Facility User Operations Manager
We have an opening for a Nuclear Facility User Operations Manager that will report administratively to the Defense Technologies Engineering Division (...
Design Physicist - Active Security Clearance Required
We are seeking exceptional Physical Scientists and Engineers with backgrounds in fields such as plasma physics, radiation transport, atomic physi...
Subcontract Analyst
We have an opening for a Subcontract Analyst who will solicit, negotiate, award, and administer various types of subcontracts for research and develop...
W87-1 Modification Program Joint Test Assembly (JTA) Team Mechatronics Engineer – Active Security Clearance Required
We have multiple openings for Mechatronics Engineers for the W87-1 Modernization Program Joint Test Assembly (JTA) team. The JTA Nuclear Explosive Pac...
Nuclear and Chemical Sciences Division Graduate Intern - Summer 2026
We have multiple openings for graduate level students and for students who have received a bachelor’s or master’s degree to engage in practical resear...
ES&H Graduate Intern - Summer 2026
We have an opening for  G raduate Level Students  and students who have received a bachelor’s or master’s degree in the Environment, Safety ...
Mechanical Technologist/Sr. Mechanical Technologist – Cruise Missile Modernization
We have an opening for a Mechanical Technologist/Sr. Mechanical Technologist to support the Cruise Missile Modernization team. You will contribute to ...
High-Temperature Materials Analyst
We have an opening for a High-Temperature Materials Analyst to support the LLNL Independent Diagnostic Scoring System (LIDSS) team. LIDSS provides cut...
Transmission Grid Engineer - Lead
We have an opening for an experienced Transmission Grid Engineer . You will lead system research on electrical power grid infrastructure analysis with...
Laser Modeling Physicist
We are seeking a Laser Modeling Physicist within our Laser Science and Systems Engineering Program to participate in the research, development, and mo...
Nuclear and Chemical Sciences Division Undergraduate Intern - Summer 2026
We have multiple openings for undergraduate level students to engage in practical experience to further their educational goals. You will provide tech...
ES&H Undergraduate Intern - Summer 2026
We have an opening for an  Undergraduate Student  in the Environment, Safety and Health (ES&H) Directorate.  You will work under the di...
Fusion Materials Computational Materials Science - Postdoctoral Researcher
We have an opening for a  Computational Materials Science Postdoctoral Researcher  to participate in research on the development of refracto...
Reaction Kinetics - Postdoctoral Researcher
We have an opening for a Postdoctoral Researcher with a strong background in spectroscopic analysis to conduct research on the fundamental properties ...
HED Physics - Postdoctoral Experimental Physicists
We have multiple openings for HED Physics - Postdoctoral Experimental Physicists to independently execute experiments and/or to develop instrumentatio...
Predictive Science Academic Alliance Program IV Student Intern (PSAAP IV)
We have multiple openings for graduate level students who are a part of the Predictive Science Academic Alliance Program IV (PSAAP IV) to perform disc...