Mechanical TechnologistSr. Mechanical Technologist

We have an opening for Mechanical Technologist/Sr. Mechanical Technologist to support the various operations of new and on-going experiments at LLNLs Site 300 (in Tracy CA) and Livermore Site. You will work under general supervision in a team addition you will contribute to the team by providing operations maintenance design fabrication assembly support and documentation. This position will be in the Defense Technologies Engineering Division (DTED) within the Engineering Directorate supporting operations within the Strategic Deterrence (SD) organization.

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

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.

In this role you will

• Provide intermediate level technical support to engineering scientific and technical staff to plan and conduct experiments at LLNL and other off-site locations.
• Design fabricate assemble and disassemble moderately complex mechanical components and systems using work control process and procedure requirements while working under general supervision.
• Operate mechanical diagnostic equipment maintain area controls assist with mechanical diagnostic calibration and alignment test prior to experiment execution and perform data recovery after experiment execution.
• Apply intermediate knowledge of materials and manufacturing processes in solving mechanical problems while using established guidelines techniques and procedures.
• Provide operations maintenance design fabrication assembly support and maintain systems documentation and experimental records.
• Perform facility related and technical functions such as maintenance testing upgrades to equipment control and interlock systems checks.    
• Perform other duties as assigned.

Additional job responsibilities at the 533.3 level

• Provide advanced level technical assembly and disassembly support of complex systems while working independently with minimal direction.
• Design fabricate assemble and disassemble complex mechanical components and systems including planning and selecting materials equipment and methods and setting priorities.
• Assist in developing test parameters performing comprehensive troubleshooting testing materials components or systems identifying problems interpreting standards making recommendations and providing input on solutions to complex problems.

Qualifications :

• Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
• Associate degree in Engineering Technology or equivalent combination of education and related technical experience.
• Intermediate level skills and experience with solving a variety of moderately complex technical problems in completion of work assignments.
• Experience with mechanical diagnostic equipment maintaining area controls assisting with mechanical diagnostic calibration and alignment testing prior to experiment execution and performing data recovery after experiment execution.
• Demonstrated ability to read and follow engineering notes sketches and drawings.
• Experience in mechanical fabrication and assembly including intermediate level skills and knowledge of engineering hardware design and testing processes.
• Effective written and verbal communication and presentation skills and ability to work constructively in a multidisciplinary team environment.
• Ability to complete and maintain certifications as required by the position.
• Experience in general machining processes with the ability to operate hand/power tools.
• Ability to lift 30 lbs in a safe and controlled manner.
• Ability to become medically qualified to wear respiratory and other protective equipment and perform moderate work effort while wearing respirators.

Additional qualifications at the 533.3 level

• Advanced level technical skills and knowledge of engineering principles to perform comprehensive troubleshooting and regularly make decisions to solve challenging and complex problems.
• Experience working with advanced level precision component assemblies with tight tolerances.
• Demonstrated ability to read and follow complex assembly procedures engineering notes sketches and engineering drawings.
• Experience working with Explosive/Hazardous Materials.

Pay Range

$43.55 - $63.97 Hourly

$43.55 - $53.36 Hourly for 533.2 Level
$52.23 - $63.97 Hourly for 533.3 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 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  300

  Site 300 is an experimental test site operated by LLNL.  Situated on 7000 acres in rural foothills approximately six miles southwest of downtown Tracy and 15 miles southeast of Livermore Site 300 hosts approximately 200 employees with expertise in such fields as engineering chemistry biology and environmental restoration. Employees assigned to work at Site 300 may be exposed to the organism that causes San Joaquin Valley Fever (coccidioidomycosis).

  Security 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.

  Pre-Placement Medical Exam

  A job related pre-placement medical examination may be required.

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  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.

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  Remote Work :

  No

  
  

  Employment Type :

  Full-time