Mechanical TechnologistSr. Mechanical Technologist Active Clearance Required

We have an opening for a Mechanical Technologist/Sr. Mechanical Technologist to provide general technical and mechanical support for on-going experiments involving explosives and energetic materials. Work may involve Beryllium radioactive materials other hazardous materials classified parts and documents. Under general supervision in a team environment you will field experiments that may include inclement weather and operate key equipment at LLNLs Site 300 Experimental Firing Facilities located in Tracy CA. This position is in the Facilities Operations and Support (FOS) within the Strategic Deterrence 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 hired at the higher level.

In this role you will 

• Work closely with scientific personnel and experimentalists to plan and conduct experiments by fabricating assembling setting up and aligning experimental hardware stands and fixtures; preparing the facility and diagnostic equipment overseeing diagnostic connections to explosive assemblies and establishing and maintaining area controls.
• Perform precision diagnostic alignment and validation prior to experiment execution and performing data recovery and area re-entry after experiment execution.
• Perform facility related and technical functions such as troubleshooting maintenance testing and reconfiguration of firing tables firing chambers and support systems such as ventilation vacuum hydraulics control equipment and interlock systems.
• Author and maintain systems documentation and experimental records operational procedures and technical documents.
• Control and manage hazardous and radioactive materials used and wastes generated by operations.
• Provide general mechanical and/or electro-mechanical fabrication support.
• Ensure that support and experimental areas are kept clean uncluttered and orderly.
• Operate forklift and rigging devices.
• Perform other duties as assigned within firing operations.

Additional responsibilities at the 533.3 level

• Act independently and/or direct others to ensure work is conducted in an efficient manner.
• Propose and implement solutions for conducting experiments in a manner that improves safety security diagnostic capability quality and efficiency.
• Provide advanced technical support for the assembly and disassembly of complex systems.
• Design fabricate assemble and disassemble complex mechanical components and systems including planning and selecting materials equipment and methods.

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.
• Associates degree in Engineering Technology undergraduate studies applicable to the position or equivalent combination of education and related experience.
• Ability to efficiently work multiple tasks and interact effectively with a diverse set of personalities and disciplines while following policies and procedures.
• Experience in mechanical fabrication and assembly.
• Ability to read and follow engineering notes sketches and drawings.
• Ability to operate hand/power tools lift up to 50 lbs. safely and become medically qualified to wear respiratory and other protective equipment and perform moderate work effort while wearing full-face respirator.
• Ability to complete and maintain the following qualifications: explosives handler chamber and firing table operator high-speed camera operator and/or radiation generating device operator Rad Worker (II) and Beryllium Worker.
• Experience with office computers and related software i.e. Windows MS Word Excel Outlook PowerPoint and inventory databases.
• Effective written and verbal communication and presentation skills and the ability to work constructively in a multidisciplinary team environment.

Additional qualifications at the 533.3 Level

• Advanced ability to oversee provide technical direction to train and mentor other team members to complete complex and hazardous operations.
• Advanced ability to analyze hazards and develop appropriate level controls and prepare work control documents.
• Experience and high-level understanding of the science of explosives and fielding explosive experiments.

Qualifications We Desire

• High Explosives (HE) Handler.
• Experience handling explosives and fielding explosives experiments.
• Experience with chemicals hazardous and radiological materials and experience with Radiological contamination control.

Pay Range

$43.55 - $63.97 Hourly

$43.55 - $53.36 Hourly for the 533.2 level

$52.23 - $63.97 Hourly for the 533.3 level

This is the lowest to highest salary we in good faith believe we would pay for this role at the time of this posting.  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 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.

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

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  Remote Work :

  No

  
  

  Employment Type :

  Full-time