Mechanical Technologist/Sr. Mechanical Technologist – Sub-Critical Experiments

We have an opening for a Mechanical Technologists/Sr. Mechanical Technologist to support the Sub-Critical Experiments team (SCE). You will contribute to new and on-going experiments at LLNLs Livermore Site Site 300 and other locations within the Nuclear Weapons Enterprise (NWE) complex. Primary work activities are conducted in the B131 High Bay. This position is in the Defense Technologies Engineering Division (DTED within the Engineering Directorate.

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 you are selected at the higher level.

In this role you will

• Design fabricate assemble disassemble upgrade and retrofit moderately complex electro-mechanical components and systems using work control process and procedure requirements while working under general supervision.
• Provide intermediate level technical support to engineering scientific and technical staff to plan and conduct experiments in support of SCE program mission at Livermore Site 300 and other NWE sites
• Provide operations maintenance design fabrication assembly support and produce & maintain systems documentation and experimental records.
• 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.
• Perform facility related and technical functions such as maintenance testing upgrades to equipment control etc. 
• 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 obtain 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.
• Experience in mechanical fabrication and assembly.
• 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.
• Ability to lift 50 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.
• Ability to periodically travel to Nuclear Security Enterprise sites in support of program mission.

Additional qualifications at the 533.3 level

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

Qualifications We Desire

• Experience assembling electro-mechanical systems and assemblies
• High Explosives certification
• Fissile Material Certification
• Experience in fulfilling Work Control process and procedure requirements
• Experience working with machine tools

Additional Information :

Position Information

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

Why Lawrence Livermore National Laboratory

• Included in 2025 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.

  Reasonable Accommodation

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  Remote Work :

  No

  
  

  Employment Type :

  Full-time