Jobs in the United States

25+ jobs

Save this search

Added 20 mins ago
Plant Operator - (overnight) Center for Laboratory Medicine
Memorial Sloan Kettering Cancer Center
NY
Inspect, test, and operate building machinery and equipment to ensure everything runs safely and efficiently.
Added 35 mins ago
Project Manufacturing Engineer JR00045844
ABB Inc
Senatobia, MS
Added 43 mins ago
Microsoft System Administrator Senior
SAIC
Washington, DC
SAIC is seeking a Senior Endpoint Engineer to engineer, secure, and optimize our enterprise endpoint ecosystem. This position will provide critical support in engineering, securing, and…
Added 43 mins ago
Cloud DevSecOps Engineer Senior
SAIC
Washington, DC
SAIC is currently seeking a Cloud DevOps Engineer Senior. This position will serve as a primary technical engineer leading the enterprise-wide migration of Atlassian Jira and Confluence…
Added 58 mins ago
AE
Principal Electrical Engineer
Advanced Energy
Wilmington, MA
- $165,000 to $215,000 USD / year
…partnership with leading customers, a global best-in-class operations capability, and a proven leadership team. We have a track record and resources to make things happen both organically…
Added 58 mins ago
Test and Validation Engineer - 3rd Shift
Butler America
Andover, MA
Collaborate effectively with cross functional stakeholders, including Operations, Manufacturing Engineering, Quality, Maintenance, Design/Engineering, Test Equipment Engineering, and…
Added 59 mins ago
Manufacturing Engineer 3 - 30458
HII
Pocasset, MA
…the production of our autonomous systems. As a manufacturing engineer, you will be responsible for supporting production operations, resolving manufacturing issues, and driving continuous…
Added 59 mins ago
Systems Engineer - 30471
HII
Pocasset, MA
HII Unmanned Systems (UxS) has an exciting systems engineering role to develop, integrate, test, and field autonomous maritime vehicles. As our new Systems Engineer you will apply strong…
Added 1 hour ago
Healthcare Engineer
Veterans Affairs, Veterans Health Administration
Grand Island, NE
Added 1 hour ago
Supervisor, Building Operations
METROPOLITAN UTIL DIST
Omaha, NE
…Summary Under limited supervision, the Supervisor, Building Operations in Facilities Management is responsible for operating, maintaining, and repairing assigned District facilities to…
Added 2 hours ago
O
Principal Network Developer
Oracle
Nashville, TN
- $102,300 to $209,500 USD / year
The OCI AI Infrastructure – Network Operations team operates the high-performance RDMA/RoCE network fabrics powering OCI’s largest AI, GPU, and HPC workloads. These globally distributed…
Added 2 hours ago
Senior Mechanical Engineer, Development
BAE Systems
Merrimack, NH · Hudson, NH
BAE Systems is seeking a Senior Mechanical Engineer to join our team in Hudson and Merrimack, NH!
Added 2 hours ago
W
Staff Software Engineer (Backend, Business Systems)
Whoop
Boston, MA
- $170,000 to $230,000 USD / year
WHOOP is hiring a Staff Software Engineer to join the Business Systems team. In this role, you will play a crucial role in architecting, developing, and optimizing the backend…
Added 4 hours ago
Senior Security Engineer - Data Loss Prevention (DLP)
CVS Health
Woonsocket, RI
Develop, test, tune, and optimize DLP policies, classification rules, sensitivity labels, and detection logic, including Regex-based controls, to improve control effectiveness and…
Added 4 hours ago
MP
Process Engineer 1 - Intern to Full-Time Conversion
Marathon Petroleum Corporation
Mandan, ND · Dickinson, ND
- Full-time
…yield, energy efficiency, and reliability. Assists in plan test runs and develops projects to address opportunities.• Supports collaboration with operations, engineering and maintenance…
Added 5 hours ago
L
Geotechnical Risk Manager
lhh
Tempe, AZ
- $150,000 to $180,000 USD / year
Facilitate the transition from preconstruction to operations by documenting geotechnical assumptions, recommendations, risks, and ownership strategies.
Added 5 hours ago
Senior Platform Software Engineer
Raydar
Palo Alto, CA
…blends infrastructure work, automation and machine learning…
Added 5 hours ago
MP
Process Engineer 1 - Intern to Full-Time Conversion
Marathon Petroleum Corporation
Catlettsburg, KY
- Full-time
…yield, energy efficiency, and reliability. Assists in plan test runs and develops projects to address opportunities.• Supports collaboration with operations, engineering and maintenance…
Added 5 hours ago
Senior Controls Engineer II
Actalent
Erlanger, KY
We are seeking a highly skilled Controls Engineer II to design control systems for industrial material handling solutions. The ideal candidate will be responsible for concepting new ideas,…
Added 5 hours ago
GL
Manager, Planning - 1st shift
GXO Logistics
Bloomington, CA
- $103,611 to $115,124 USD / year
…to the small details and strong work ethic will ensure our operations continue to run smoothly and our customers receive superior service. Become a part of our dynamic team and we'll help…
Added 5 hours ago
Junior Technical Engineer
Sparksoft Corporation
Columbia, MD
Create/update build and deployment scripts. Support CI/CD tools integration/ operations/ change management, and maintenance.
Added 5 hours ago
Full-Stack Software Engineer
Trinzic
Beavercreek Township, OH
…people worldwide with customers in more than 85 countries and operations in over 28 countries. KBR is proud to work with its customers across the globe to provide technology, value-added…
Added 5 hours ago
Enterprise Solutions Engineer
Wright-Patt Credit Union Inc.
Beavercreek, OH
The Enterprise Solutions Engineer is a senior individual contributor responsible for translating enterprise architecture direction into working technical capabilities, reusable engineering…
Added 5 hours ago
Digital Systems Engineer
Leidos
Beavercreek, OH
Leidos Defense Systems is seeking a skilled Digital Systems Engineer who loves collaboration and being a part of something big, to join our team. As a Leidos Digital Systems Engineer, you…
Added 5 hours ago
High Speed Systems Engineer
Leidos
Beavercreek, OH
Leidos Defense Systems is seeking a highly motivated Systems Engineer who loves collaboration and being a part of something big, to join our team. This role drives the implementation of…

LLNL

Nuclear Safety Engineer

Livermore, CA, United States

Apply About employer

Applications open in a new tab.

Job details

Posting language: English
Posted: Oct 29, 2026

Original 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 nuclear weapon safety engineer to participate in new and ongoing programs. Nuclear weapon safety engineers are responsible for the design, assessment, and implementation of nuclear weapon safety components and subsystems. Our engineers interface with colleagues at other National Laboratories and Production Agencies, National Nuclear Security Administration (NNSA), and Department of War (DoW) and their contractors. These positions are in the Defense Technologies Engineering Division (DTED), within the Engineering Directorate. DTED provides support to Strategic Deterrence Programs. 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. 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

Partner with system engineers, product realization teams, test engineers, analysts, and other stakeholders internal and external to LLNL to derive safety requirements, develop and mature conceptual designs, and perform supporting analyses and tests for demonstrating weapon safety requirements are met.
Conduct evaluations of components, subsystems, and system responses under normal and abnormal environments in support of stockpile stewardship, modernization programs, and future weapon system concepts.
Maintain awareness of design, development, production, maintenance, and dismantlement activities that affect weapon-system safety.
Prepare supporting safety and engineering documentation and participate in engineering design reviews.
Work independently as well as a part of a multidisciplinary team.
Travel to the other National Laboratories, the Production Agencies, NNSA locations, and DoW sites for meetings, briefings, and safety evaluations.
Perform other duties as assigned.

Additional job responsibilities, at the SES.3 level

Coordinate project interfaces and execution with organizations internal and external to the Laboratory.
Lead and provide guidance and technical direction to multidisciplinary project teams in a growing, dynamic environment.
Provide engineering knowledge to resolve complex technical and programmatic issues.
Perform independent technical tasks to provide solutions for complex issues.
Select methods, techniques, and evaluation criteria to obtain results based on analysis of multiple, largely identifiable factors.

Qualifications

This position requires an active Department of Energy (DOE) Q-level clearance or active Top Secret clearance issued by another U.S. government agency at the time of hire.
Bachelor's degree in mechanical engineering, aerospace engineering, electrical engineering, or related field, or the equivalent combination of education and related experience.
Experience working with safety-critical components, subsystems, and systems for high-hazard, high-consequence applications, such as aerospace systems safety, reactor safety, nuclear facility safety, or munition safety.
Strong verbal and written communication skills and experience working effectively in a multidisciplinary team environment, with the ability to present and explain technical information to peers and project leaders.
Ability to obtain higher clearances if needed to support programmatic work, which may require a polygraph test.

Additional qualifications at the SES.3 level

Proficient verbal and written communication skills necessary to effectively collaborate in a team environment and present and explain technical information to peers, project leaders, and senior leadership.
Systems engineering experience for nuclear or high-consequence systems, including applying systems thinking to ensure stakeholder needs are met.
Proficiency with foundational science and engineering principles and experience with safety analysis methods and tools, such as event-tree, fault-tree, failure modes and effects analysis, margin and uncertainty quantification.

Qualifications We Desire

Master’s degree in mechanical engineering, aerospace engineering, electrical engineering, or related field, or the equivalent combination of education and related experience.
Experience with nuclear weapon safety design and assessment, the NNSA documented safety analysis process for nuclear explosive operations, Nuclear Explosive Safety evaluations, and nuclear weapon surety requirements, such as DOE Order 452-series.
Experience working with NNSA Nuclear Security Enterprise laboratories and plants, including Pantex Plant, Kansas City National Security Campus, Sandia National Laboratories, and Los Alamos National Laboratory.
Ability to obtain certification for NNSA’s Nuclear Explosive Safety Study Group through classroom and on-the-job training.
Knowledge of design applications employing high explosive materials.
Experience working in an environment with stringent safety and security policies.

Pay Range $146,340 - $222,564 Annually

$146,340 - $185,544 Annually for the SES.2 level

$175,530 - $222,564 Annually for the SES.3 level This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting; pay will not be below any applicable local minimum wage. 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. Additional Information

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

Why Lawrence Livermore National Laboratory?

Included in 2026 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 https://www.llnl.gov/inclusion/our-values

Security Clearance This position requires an active Department of Energy (DOE) Q-level clearance or active Top Secret clearance issued by another U.S. government agency at time of hire.

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. 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.

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.

Apply About employer

Report this job