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Maintenance Mechanic

Not Applicable | Full-time
Craft and Skilled Labor | livermore, CA | 11/18/2021

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Company Description

Join us and make YOUR mark on the World!

Are you interested in joining some of the brightest talent in the world to strengthen the United States’ security? Come join Lawrence Livermore National Laboratory (LLNL) where our employees apply their expertise to create solutions for BIG ideas that make our world a better place.

We are committed to a diverse and equitable workforce with an inclusive culture that values and celebrates the diversity of our people, talents, ideas, experiences, and perspectives. This is essential to innovation and creativity for continued success of the Laboratory’s mission.

Job Description

We have an opening for a Maintenance Mechanic. You will operate and maintain a wide variety of mechanical and electrical equipment, such as pumps, valves, and flow controls associated with the heating, air conditioning, water supply, sewage treatment, and related operating systems and utilities of LLNL's plant and research facilities. You will interact with coworkers, supervisors, building clients, and other crafts personnel.  This position is in the Infrastructure Engineering and Operations Department, and may require work at Site 300 in Tracy, CA.

In this role you will 

  • Operate and maintain a wide variety of site-wide mechanical and electrical equipment using materials, power tools, and hand tools applicable to the trade.
  • Work from drawings and verbal/written instructions to keep plant and research systems operating.
  • Maintain and operate equipment in conjunction with underground utilities distribution systems, which include natural gas systems, centralized compressed air system, sewer collection system, and water (city, low conductivity, and demineralized).
  • Maintain, operate, and repair water pumps, vacuum pumps, LN2 dewars, air compressors, valves, and other plant equipment.
  • Operate specialized mechanical systems and devices (e.g., operate high-pressure steam boiler), take corrective measures in the event of malfunctions within specified time according to State codes.
  • Prepare standard reports, permit requirements, deficiency forms, and preventive maintenance work requests utilizing written or computer format.
  • Perform other duties as assigned.


  • Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. citizenship.
  • High School diploma or apprentice training completion, or equivalent combination of education and related work experience.
  • Basic skills, knowledge, and abilities in maintenance mechanic tasks including journey-level machine shop experience.
  • Basic knowledge and experience operating and maintaining a wide variety of mechanical and electrical equipment such as pumps, valves, and flow controls associated with heating, air conditioners, water supply, sewage treatment, and related operating systems and utilities.
  • Experience using hand tools and power tools of the trade such as grinders, torque wrenches, micrometers, pneumatic tools, presses, and shears.  Working knowledge of related trades such as HVAC, plumbing, electrical, and millwright.
  • Basic skills in the application of ES&H laws and regulations.
  • Basic written and computer skills necessary to complete work orders, time reporting and training.
  • Effective customer service and communication skills necessary to interact with clients in a multi-disciplinary team.
  • Ability to obtain California State Certificate Backflow Tester and/or State of California Water Distribution Operator License.
  • Ability to work scheduled shift work (day, swing, owl), emergency overtime work, and various shifts including weekends.  Ability to obtain and maintain a valid California Driver’s License and ability to travel to Site 300 in Tracy, California, and ability to become medically qualified to wear respiratory and protection equipment.

Additional Information

Why Lawrence Livermore National Laboratory?

  • Included in 2021 Best Places to Work by Glassdoor
  • Work for a premier innovative national Laboratory
  • Comprehensive Benefits Package
  • Flexible schedules (*depending on project needs)
  • Collaborative, creative, inclusive, and fun team environment

Learn more about our company, selection process, position types and security clearances by visiting our Career site

Site 300

Site 300 is an experimental test site operated by LLNL.  Situated on 7,000 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).

COVID-19 Vaccination Mandate

LLNL demonstrates its commitment to public safety by requiring that all new Laboratory employees be immunized against COVID-19 unless granted an accommodation under applicable state or federal law. This requirement will apply to all new hires including those who will be working on site, as well as those who will be teleworking.

Security Clearance

LLNL is a Department of Energy (DOE) and National Nuclear Security Administration (NNSA) Laboratory.  Some positions will require a DOE L or Q clearance (please reference Security Clearance requirement above).  If you are selected and a clearance is required, we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. In addition, all L or Q cleared employees are subject to random drug testing.  An L or Q clearance requires U.S. citizenship.  For additional information please see DOE Order 472.2.

Davis Bacon

The Laboratory performs a variety of work, including some that may fall under Davis Bacon Act requirements.  When work scope falls under this Act, the Laboratory complies with the prevailing wage requirements.

Pre-Employment Drug Test

External applicant(s) selected for this position will be required to 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.

Pre-Placement Medical Exam

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

Equal Employment Opportunity

LLNL is an affirmative action and equal opportunity employer that values and hires a diverse workforce. 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.

LLNS is committed to offering reasonable accommodations during the application and recruiting processes due to a disability.  If you need assistance or an accommodation due to a disability, please submit a request via online form

Employee 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 through the following link.

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