Sr. Mechanical Technologists

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.

We have multiple openings for Sr. Mechanical Technologists. You will develop, test, troubleshoot, evaluate, operate, and maintain experimental, research, and prototype equipment associated with mechanical systems in the National Ignition Facility and Photon Science Directorate (NIF & PS). This position is in the Laser Systems Engineering and Operations (LSEO) Division, within the Engineering Directorate.

This position requires full-time on-site presence due to the nature of the work.

In this role, you will

• Independently fabricate, assemble, and disassemble complex and precise mechanical components and systems.
• Operate and maintain fabrication equipment, hand tools, and precision measuring instruments.
• Provide advanced technical support across a wide variety of activities, including vacuum systems, electrical work, and plumbing and cooling installations.
• Perform routine assembly, maintenance, and comprehensive troubleshooting of complex equipment, to ensure reliable operation and rapid restoration of service.
• Prepare and follow instructional guides to assemble, repair, calibrate, operate and maintain equipment and systems.
• Test, diagnose, maintain and repair complex pressure systems, instrumentation, control, and test equipment.
• Apply advanced knowledge of materials and manufacturing processes to resolve complex mechanical issues and improve system performance and reliability.
• Develop and author operational procedures, technical manuals, and qualifications standards.
• Plan, organize, mentor, and lead projects of limited scope to meet defined objectives and schedules.
• Perform other duties as assigned.

• Ability to obtain and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
• Associate's degree in mechanical, industrial, or manufacturing or related field, or the equivalent combination of education and related experience.
• Substantial experience and advanced skills in mechanical fabrication and/or assembly.
• Advanced knowledge of electro-mechanical technology.
• Advanced experience working with pressurized systems and leak testing equipment.
• Advanced experience in mechanical design, fabrication, and opto-mechanical mechanisms.
• Experience in safe work and business practices.
• Experience working in a multi-disciplinary team environment.
• Effective written, verbal, feedback and presentation communication skills.

Qualifications We Desire

• Bachelor's degree in mechanical engineering technology, or equivalent combination of education and related mechanical experience.
• Experience in 3D CAD, machining, mechanical assembly and mechanical troubleshooting.
• Experience in the operation of precision systems/mechanisms.

Pay Range

$52.23 - $63.97 Hourly

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.

#LI-Onsite

Position Information

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

Why Lawrence Livermore National Laboratory?

• Included in 2026Best Places to Work by Glassdoor!
• FlexibleBenefits Package
• 401(k)
• Relocation Assistance
• Education Reimbursement Program
• Flexible schedules (*depending on project needs)
• Our values - visithttps://www.llnl.gov/inclusion/our-values

Security Clearance

This position requires a Department of Energy (DOE) Q-level clearance.If you are selected, wewill initiate a Federal background investigation to determine if youmeet 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 useand/or possession ofmobile devices in Limited Areas. Depending on your job duties, you may be required to work in a Limited Area whereyou are not permitted to have a personal and/or laboratory mobile devicein your possession. This includes, but not limited to cell phones, tablets, fitness devices, wireless headphones, and other Bluetooth/wireless enabled devices.

Ifyou useamedical device, whichpairs with a mobile device,you must still follow the rules concerningthe mobile device in individual sections within Limited Areas. Sensitive Compartmented Information Facilities requireseparate 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.

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.

CaliforniaPrivacy Notice

The California Consumer Privacy Act (CCPA) grants privacy rights to all California residents. The law also entitlesjob 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.