Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Skills: Project controls, Primavera P6, MS Project, Earned value management, Cost variance analysis
Document Compliance Manager- Active Clearance Required
Livermore, California, United States · On-site
$136k–$200k/yr
Senior+$8M raised
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Skills: Document control, Records management, Compliance management, Team leadership, Regulatory compliance
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Skills: Research, Data analysis, Technical writing, Literature review, Policy analysis
CGSR Undergraduate Research Associate - Spring 2027
Livermore, California, United States · On-site
$23/hr–$31/hr
Entry level$8M raised
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Skills: Research, Data analysis, Technical writing, Literature review, Policy analysis
Overview Company Overview: Join Allied Universal® Technology Services, a global leader in transforming the security industry. We integrate advanced technology — video surveillance, electronic access control, alarm monito…
Skills: Project management, Electronic security, Budget management, Systems scheduling, Field installation
Delan Associates Inc.
Site Escort
Livermore, California, United States · On-site
Entry level
HIRING - IMMEDIATE NEED FOR SITE ESCORTS! We are seeking Site Escorts for a project in Piketon, Ohio. The Escort must have a current "Q" or an "L" Clearance, US citizenship, be able to work onsite in Piketon, Ohio.
Skills: Site Security, Access Control, Clearance Management
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Skills: Fiber optic cabling, Copper cabling, Telecommunications infrastructure, VoIP, Voice and data terminal equipment
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Campus Supervisor – High School BASIC FUNCTION: The job of Campus Supervisor - High School is done for the purpose/s of under general supervision, supervising and monitoring the behavior of the students who are outside/i…
Yard Duty Supervisor (2026/2027) 0.25 FTE #839 -2 positions available
Livermore, California, United States · On-site
$20/hr–$27/hr
Entry level
Yard Duty Supervisor The job of Yard Duty Supervisor was established for the purpose/s of providing support in the oversight of student safety and conduct on school property during assigned periods. Responsibilities incl…
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Description Commercial Construction Foreman Location: Livermore, CA DescriptionACS Commercial Construction Foreman Department: Construction Operations Reports To: Project Manager / Superintendent FLSA Status: Non-Exempt …
Skills: Construction Management, Carpentry, Blueprint Reading, Crew Supervision, Safety Compliance
Administrative Specialist - Laser Systems Engineering & Operations Division
Livermore, California, United States · On-site
$38/hr–$45/hr
Mid level$8M raised
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Administrative Specialist - Laser Systems Engineering & Operations Division
Livermore, California, United States · On-site
Mid level$8M raised
Company Description Join us and make YOUR mark on the World! Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and…
Yard Duty Supervisor The job of Yard Duty Supervisor was established for the purpose/s of providing support in the oversight of student safety and conduct on school property during assigned periods. Responsibilities incl…
The researcher will build detailed multiphysics models using LLNL-based simulation tools and run them on high-performance computing clusters. They will also analyze simulation results to inform collaborators and publish findings in peer-reviewed scientific journals.
Requirements
Candidates must hold a PhD in a physical science, engineering, or applied mathematics discipline and demonstrate experience in high-quality research. The role requires the ability to secure and maintain a U.S. DOE Q-level security clearance, which necessitates U.S. citizenship.
Full job description
Company Description
Join us and make YOUR mark on the World!
Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability.
Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact.
Job Description
We have an opening for a Postdoctoral Researcher in the Planetary Defense Group. We invite PhD graduates from STEM fields to apply (including, but not limited to, the various physics disciplines, engineering, experimental science, computational physics, geological science, planetary science, chemistry, or material science). This opportunity is intended for individuals who have finished their PhD and wish to further develop their skills, knowledge, and/or abilities to better position themselves for a future staff position within the Design Physics Division or elsewhere at LLNL.
The Planetary Defense Group at LLNL uses high-fidelity hydrocode simulations to address challenging problems related to the mitigation of hazardous asteroids and the consequences of asteroid impacts on Earth. We operate within a larger planetary defense community with collaborations (both domestic and international) spanning the national laboratory complex, other government agencies, and academic institutions. We primarily focus on dynamic, high-strain-rate events. Past projects have involved simulating the NASA DART impact on Dimorphos to better understand how impact ejecta affects deflection, constructing a simplified model for the deflection of an asteroid with a nuclear explosive device, developing new hydrocode methods to better model asteroid airbursts, and validating our codes against relevant experiments. This position is in the Design Physics Division within the Strategic Deterrence (SD) Directorate.
This position may offer a hybrid schedule, which includes the flexibility to work from home one or more days per week, after a probationary period. The specifics of the hybrid schedule, including the exact number of days required in the office and virtual work options, may vary based on the needs of the team and the organization.
You will
Build detailed multiphysics models using LLNL-based codes and simulation tools.
Run your models on some of the largest HPC clusters in the world.
Draw insights from simulations results to inform collaborators and stakeholders.
Adapt and improve existing tools to advance our modeling capabilities.
Pursue independent (but complementary) research interests and interact with a broad spectrum of scientists internally and externally to the Laboratory.
Publish research results in peer-reviewed scientific or technical journals, and present results at external conferences, seminars and/or technical meetings.
Perform other duties as assigned.
Qualifications
Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
PhD in a related physical science, engineering or applied mathematics discipline.
Experience in high-quality research in a relevant field, demonstrating both detailed understanding and a broad perspective.
Demonstrated significant accomplishments in experimental science, numerical simulations and modeling, and/or the application of theoretical techniques.
Experience developing innovative solutions to scientific and technical problems.
Demonstrated proficient verbal and written communication and interpersonal skills to collaborate effectively in a multidisciplinary team environment and present and explain technical information.
Qualifications We Desire
Experience with Python and HPC systems.
Please include a personalized cover letter with your application, highlighting your qualifications and why you're interested in this position.
This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date.
Pay Range
$135,768 Annually
Additional Information
#LI-Hybrid
Position Information
This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date.
Why Lawrence Livermore National Laboratory?
Included in 2026 Best Places to Work by Glassdoor!
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.
Pre-Placement Medical Exam
A job related pre-placement 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.
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 non-employee workers to be notified of what personal information LLNL collects and for what purpose. The Employee Privacy Notice can be accessed here.
Organization: Strategic Deterrence
Category: Postdoctoral/Fellowship
Employee Referral Bonus: Not applicable
Job Code 1: PDS.1 Post-Dr Research Staff 1
Pre-Employment Drug Test: Required for external applicant(s) selected for this position (includes testing for use of marijuana)
Pre-Placement Medical Exam: A job-related pre-placement medical examination may be required
Security Clearance: Anticipated DOE Q clearance (requires U.S. citizenship and a federal background investigation)
Lawrence Livermore National Laboratory, located in the San Francisco Bay Area, is a premier applied science laboratory that is part of the National Nuclear Security Administration within the Department of Energy.
LLNL's mission is strengthening national security by developing and applying cutting-edge science, technology, and engineering that respond with vision, quality, integrity, and technical excellence to scientific issues of national importance. The Laboratory's science and engineering are being applied to achieve breakthroughs for counterterrorism and nonproliferation, defense and intelligence, energy and environmental security.
The world-class programs and capabilities at the Lawrence Livermore National Laboratory span one square mile, what many consider to be "the smartest square mile on Earth."
Offices: 7000 East Avenue, P O Box 808, Livermore, CA 94551, US · 7000 East Ave, Livermore, CA 94550, US
Government research laboratoryEnergyFundamental ScienceDefenseR&DPhysicsStockpile StewardshipAdditive ManufacturingChemistryMathematics
How many Security & Safety jobs are open in Livermore, CA right now?
There are currently 181 open security & safety positions in Livermore, CA listed on Clera. New openings are added daily as companies post roles.
Which companies are hiring for Security & Safety roles in Livermore, CA?
Companies currently hiring include Lawrence Livermore National Laboratory, Livermore Valley Joint Unified School District, Allied Universal, Costco Wholesale, US Foods, among others. Browse the listings above to see every active employer.
Are there remote or hybrid Security & Safety jobs in Livermore, CA?
Yes — 46 of the 181 open security & safety positions offer remote or hybrid work (0 remote, 46 hybrid).
How do I apply for Security & Safety jobs in Livermore, CA?
Each listing links directly to the employer's application page. Apply early — fresh listings get the most recruiter attention in the first two weeks.