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Added 3 mins ago
Senior Mission Operations Engineer
Blue Origin Personnel, LLC
Reston, VA · Denver, CO
As a Senior Mission Operations Engineer, you will serve as the Mission Operations Lead for a deep space mission that will cruise to Mars, insert into orbit, and then serve for years as a…
Added 3 mins ago
MK1-Avionics Harness Design Engineer II
Blue Origin Personnel, LLC
Space Coast, FL
Create 3D routed harness data files utilizing Creo (Pro/Engineer) Cabling
Added 3 mins ago
MK1-Avionics Harness Design Engineer II
Blue Origin Personnel, LLC
Space Coast, FL
Create 3D routed harness data files utilizing Creo (Pro/Engineer) Cabling
Added 35 mins ago
Digital Support Engineer
Roche Diagnostics Corporation
United States
Performs validation process of IT solutions to evaluate effectiveness
Added 35 mins ago
Digital Solutions Engineer
Roche Diagnostics Corporation
United States
Performs validation process of IT solutions to evaluate effectiveness
Added 46 mins ago
Senior Engineer TR, Gas Chemical System (GCS)
Samsung Austin Semiconductor, LLC.
1530 FM 973 Taylor, TX
As an Senior Engineer TR, Gas Chemical System (GCS), see roles and responsibilities below.
Added 46 mins ago
Etch Engineer - Process Owner
Samsung Austin Semiconductor, LLC.
1530 FM 973 Taylor, TX
As an Etch Engineer - Process Owner, see roles and responsibilities below.
Added 46 mins ago
Engineer, Analysis Engineering
Samsung Austin Semiconductor, LLC.
Austin, TX
As an Engineer, Analysis Engineering, see roles and responsibilities below.
Added 2 hours ago
Desktop Support Engineers
University of Utah
Salt Lake City, UT
Desktop Support Engineer, I: Requires a bachelor’s (or equivalency) + 2 years of directly related work experience or a master’s (or equivalency) degree.
Added 2 hours ago
Senior Systems Engineer
Aeroflow Health
Asheville, NC
As a Senior Systems Engineer, you'll have an opportunity to make a meaningful impact on the stability, performance, and future direction of our infrastructure.
Added 2 hours ago
SO
SENIOR PROJECT SQUAD LEADER (CIVIL ENGINEER IV)
State of Illinois
Effingham, IL
- $6,281 to $9,792 USD / month
Current registration as a Licensed Professional Engineer in the state of Illinois OR current registration as a Licensed Structural Engineer in the state of Illinois.
Added 2 hours ago
ASSISTANT GEOMETRICS ENGINEER (CIVIL ENGINEER IV)
State of Illinois
Effingham, IL
…prepares intersection designs for approval by the Geometrics…
Added 2 hours ago
ASSISTANT BRIDGE AND HYDRAULICS ENGINEER (CIVIL ENGINEER IV)
State of Illinois
Effingham, IL
This position assists the Bridge and Hydraulics Engineer in the design and preparation of plans and reports for bridges and other major drainage structures, and in the review and…
Added 2 hours ago
BT
Quality Assurance Engineer/Inspector (BT-26212)
Bastion Technologies
Pasadena, CA
- $114,000 to $145,000 USD / year
The Quality Assurance Engineer/Inspector will support the various projects located in Pasadena, CA as part of the NASA/JPL MASS Subcontract.
Added 3 hours ago
Enterprise Applications Engineer
United Imaging North America
United States
…solutions, and intelligent solutions that cover the entire process of imaging diagnosis and treatment. From our North American HQ in Houston, we are passionate about expanding our customer…
Added 3 hours ago
GTM Systems Engineer
Jobgether
Remote, United States
This position is listed on behalf of a partner company, who manages all applications and next steps. Our partner is looking for a GTM Systems Engineer based in the United States.
Added 3 hours ago
Senior Software Engineer II
Invoca
Remote, United States
Troubleshoot independently across the team's services, contribute to post-incident reviews, and recommend process and monitoring fixes alongside code fixes.
Added 3 hours ago
EU
Principal AI Engineer - Evinova
Evinova US LLC Company
Gaithersburg, MD
- $144,648.8 to $189,851.55 USD / year
As Principal AI Engineer, you'll design and implement sophisticated agentic AI systems that power next-generation life sciences solutions. Working at the intersection of AI research and…
Added 3 hours ago
AI Solution Engineer
Colgate-Palmolive Company
Piscataway, NJ
The AI Solution Engineer designs, builds, deploys, and supports secure, production-grade enterprise applications powered by LLMs and multi-agent architectures. The role combines modern…
Added 3 hours ago
Area Manager - Southeast
Jobgether
Remote, United States
Professional Engineer (PE) license is preferred.
Added 3 hours ago
S
R&D Project Engineer
SprintRay
Huntington Beach
- $80,000 to $95,000 USD / year
The R&D Project Engineer is a hybrid role that combines program leadership with hands-on laboratory work. Approximately half of the role (~50%) is dedicated to planning and driving…
Added 4 hours ago
THIS POSTING IS INTENDED FOR THOSE REGISTERED TO ATTEND THE SOCIETY OF HISPANIC PROFESSIONAL ENGINEERS CONFERENCE, Oct 28 - 31st in Indianapolis, IN
Medtronic
Boston, MA
For Engineer I opportunities, we are looking for a minimum of a Bachelor's Degree, completed by May 2026, with 0+ years of experience.
Added 4 hours ago
Launch Operations Engineer (All levels)
Blue Origin Personnel, LLC
Space Coast, FL
Experience Levels with manufacturing, industrial, or process engineering. (3+ Level II Engineer, 5+ Level III Engineer, 8+ SR Level Engineer)
Added 4 hours ago
C
Business Operations Lead
Coast
NY
- $160,000 to $200,000 USD / year
…that put AI to work in the business. You don’t need to be an engineer. You do need to be the person who reaches for AI first, and who can tell when it’s doing a good job and when it…
Added 4 hours ago
C
Business Operations Associate
Coast
NY
- $85,000 to $110,000 USD / year
…put AI to use across the business. You don’t need to be an engineer. You do need to be the person who reaches for AI first, and who can tell when it’s doing a good job and when it…

LLNL

Nuclear Safety Engineer

Livermore, CA, United States

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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.

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