Jobs in the United States

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Added 1 min ago
A
RF Engineer
adecco
Bedford, NH
- $90,000 to $120,000 USD / year
As an RF Engineer, you'll support the full product development lifecycle, working with technologies such as stripline, microstrip, and other RF and antenna systems. You'll collaborate with…
Added 2 mins ago
Financial Services - Forward Deployed Engineer - Technology Consulting - Engineering- Senior Manager
EY
Chicago, IL · Hoboken, NJ · Atlanta, GA · Grandview Heights, OH · Boston, MA · Charlotte, NC · Philadelphia, PA · New York, NY
Understanding of production support for AI systems, including tracing, observability, degradation detection, behavioral drift, incident response, and human escalation.
Added 2 mins ago
Financial Services - Forward Deployed Engineer - Technology Consulting - Engineering- Manager
EY
Grandview Heights, OH · Chicago, IL · Charlotte, NC · Boston, MA · Atlanta, GA · Hoboken, NJ · Philadelphia, PA · New York, NY
Understanding of production support needs for AI systems, including tracing, observability, degradation detection, behavioral drift, and incident response.
Added 2 mins ago
Financial Services - Forward Deployed Engineer - Technology Consulting - Engineering- Senior
EY
Atlanta, GA · Boston, MA · Chicago, IL · Grandview Heights, OH · Hoboken, NJ · Charlotte, NC · Philadelphia, PA · New York, NY
Design, develop, test, deploy, and support production-grade AI/ML, generative AI, and intelligent automation solutions.
Added 4 mins ago
Sr. Project Engineer
Agropur Inc.
United States
Interface with suppliers for field support of various equipment and systems.
Added 4 mins ago
Staff Engineer - Utilities
Agropur Inc.
United States
The Staff Engineer – Utilities Systems serves as the enterprise technical authority for utility systems across the manufacturing network, including refrigeration, steam and boiler systems,…
Added 4 mins ago
Senior CQV Engineer
Lonza Bend Inc.
Bend, OR
Troubleshoot equipment and systems while driving continuous improvements.
Added 5 mins ago
Engineer lead (Java) - ST, Seattle WA
Starbucks Coffee Company
WA
…reliable, and stable technologies and security capabilities in support of the Starbucks Engineering Platform. This position is accountable for the installation, configuration, monitoring,…
Added 6 mins ago
Quality Engineer
Ralliant
Elizabethtown, NC · Elizabethtown
Support of product releases / serial releases (including PAPP if requested by relevant customers)
Added 8 mins ago
A
Liaison Engineer
Aerotek
Wichita, KS
- $85,000 to $110,000 USD / year
Job Title: Aircraft Structures Manager (Liaison Engineer)Job DescriptionThe Liaison Engineer coordinates activities to evaluate and resolve engineering-related production issues and leads…
Added 8 mins ago
MT
Customer Service Engineer
MKS2 Technologies
Ft Harrison, MT · Fort Harrison, MT
- $60,000 USD / year
…Instructional Design and Training, Software Engineering and IT Support Services to improve the security and well-being of our clients. Our commitment to excellence and our “Mission First”…
Added 9 mins ago
Partner Solutions Architect
Elastic
Austin, TX
…enabling and supporting a defined set of partners (resellers, systems integrators, MSSPs, and cloud providers). Working under established standards and in collaboration with senior SAs and…
Added 11 mins ago
Automation Engineer-Robotics & Controls
Howmet Aerospace
Wichita Falls, TX
…Automated Manufacturing processes are developed and implemented to support all plant performance…
Added 11 mins ago
Supplier Quality Engineer
AMTEC Corporation
Janesville, WI
9. Support the Purchasing department with qualifying new suppliers.
Added 11 mins ago
Quality Engineer
AMTEC Corporation
Janesville, WI
POSITION SUMMARY: Responsible for verifying piece part & assembly conformance to the required specifications. Support the production team and share ownership for the overall performance of…
Added 11 mins ago
AI Engineer
Computer Services, Inc.
Remote, United States
The AI Engineer II independently develops and supports AI engineering capabilities that enable reusable, secure, and scalable AI-assisted software delivery. This role builds components of…
Added 12 mins ago
Prop Systems Design Engineer 4
United Launch Alliance
Centennial, CO
United Launch Alliance is seeking a Propulsion Systems Design Engineer to join our Vulcan Centaur development team. This engineering function provides design, systems integration,…
Added 12 mins ago
Mechanical Design Engineer 4
United Launch Alliance
Centennial, CO
…commitment and dedication of our team of rocket scientists and support employees combined with the systems and processes we use to pull them together. As a ULA employee, you'll have the…
Added 12 mins ago
Mechanical Design Engineer 2
United Launch Alliance
Decatur, AL
…commitment and dedication of our team of rocket scientists and support employees combined with the systems and processes we use to pull them together. As a ULA employee, you'll have the…
Added 12 mins ago
Mechanical Design Engineer 2
United Launch Alliance
Centennial, CO
…commitment and dedication of our team of rocket scientists and support employees combined with the systems and processes we use to pull them together. As a ULA employee, you'll have the…
Added 12 mins ago
Mechanical Design Engineer 1
United Launch Alliance
Centennial, CO
…commitment and dedication of our team of rocket scientists and support employees combined with the systems and processes we use to pull them together. As a ULA employee, you'll have the…
Added 12 mins ago
Prop Systems Design Engineer 1
United Launch Alliance
Centennial, CO
The Vulcan Development team is looking for a Propulsion Systems Design Engineer 1 to support development of the Centaur V on SLS upper stage. This engineering function provides design,…
Added 12 mins ago
Senior Systems Developer Engineer
Amazon Development Center U.S., Inc.
Seattle, WA
The Amazon Dedicated Cloud (ADC) Serverless team is hiring a cleared senior Systems Development Engineer to lead the technical direction of how we build, deliver, and operate AWS Lambda and…
Added 12 mins ago
RF Comms Systems Engineer, Amazon Leo
Amazon Kuiper Manufacturing Enterprises LLC
Austin, TX
As a RF Comms Systems Engineer, you will work with a wide variety of functional groups and will be deeply involved in system integration and test of next generation Amazon Leo Satellites.
Added 12 mins ago
Software Development Engineer, Amazon Marketing Cloud Assistant
Amazon.com Services LLC
Boulder, CO
- Document systems, processes, and runbooks to support operational excellence

LLNL

Senior Mechanical Engineer - Active Clearance Required

Livermore, CA, United States

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Job details

Posting language: English
Posted: Nov 9, 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 multiple openings for Senior Mechanical Engineers to participate in new and ongoing projects. We provide nuclear weapon engineering design expertise; systems engineering; experimental device design; fabrication and assembly; surveillance of nuclear stockpile components; engineering analysis and computational simulation; and engineering testing for evaluation and maintenance of the enduring and future nuclear weapon stockpile. Our engineers interface with colleagues at other National Laboratories and Production Agencies, National Nuclear Security Administration (NNSA), and Department of Defense (DoD) 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. These positions 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

Provide technical expertise in mechanical and electromechanical design.
Conduct research in structural, thermal, hydraulic, or dynamics modeling of mechanical systems.
Produce advanced conceptual and detail designs in support of on-going projects.
Prepare supporting health and safety documentation that is aligned with the Integrated Safety Management (ISM) requirement and participate in design and Management Prestart Reviews.
Coordinate project interfaces and deployment interfacing with other organizations internal and external to the Laboratory.
Lead and/or provide guidance and technical direction to multidisciplinary project teams in a growing, dynamic environment.
Perform other duties as assigned.

Additional job responsibilities, at the SES.4 level

Set broad project vision and strategy and influence technical direction for self and others.
Provide expert capability in highly complex mechanical design and analysis.

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 or a related field, or the equivalent combination of education and related experience.
Advanced knowledge of mechanical design.
Significant experience in prototype development and testing, as well as hardware design and analysis.
Ability to devise solutions for unique and complex problems.
Ability and flexibility to reprioritize and change programmatic direction depending on emergent requests.
Significant experience in managing, overseeing, and delivering multiple projects on budget and schedule.
Ability to lead, manage, and mentor junior team members.
Advanced communication skills with proven ability to present concepts and ideas in a clear and coherent manner, both verbal and written for presentation and interaction with other technical staff members.

Additional qualifications at the SES.4 level

Expertise in highly complex mechanical design and analysis and significant experience in project planning and highly complex technical leadership.
Significant experience developing and implementing creative solutions to a diverse range of highly complex problems and leading corrective actions where necessary.
Expert communication, facilitation, and collaboration skills necessary to present, explain, and advise senior management and/or external sponsors and proven record of team building and conflict resolution.

Qualifications We Desire

Master's degree or PhD in Mechanical Engineering or a related field.
Advanced knowledge of systems engineering principles and practices and their application.

Pay Range $175,530 - $267,060 Annually $175,530 - $222,564 Annually for SES.3 Level

$210,630 - $267,060 Annually for SES.4 Level This is the lowest to highest salary in good faith 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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More about this job

Skills

Assembly
Provide technical expertise
Research
Mechanical systems
Health and safety
Documentation
Mechanical engineering
Design hardware
Communication skills
Leadership
Collaboration
Team building
Conflict resolution
Engineering principles

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