Sr. Mechanical Technologists

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.

Qualifications :

• Ability to obtain and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
• Associates 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

• Bachelors 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 employees 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 :

#LI-Onsite

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  Clearance

  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.

  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:  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.

  
  

  Remote Work :

  No

  
  

  Employment Type :

  Full-time