Plumber​/Pipefitter - Mid Shift

tuition reimbursement, 401(k), relocation assistance

United States, California, Livermore

Join us and make YOUR mark on the World!

Lawrence Livermore National Laboratory (LLNL) has turned bold ideas into world-changing impact advancing science and technology to strengthen U.S. security and promote global stability.

Our mission spans four critical national security areas nuclear deterrence, threat preparedness, energy security, and multi-domain defense empowering teams to take on the toughest challenges of today and tomorrow. With a culture built on innovation and operational excellence, LLNL is a place where your expertise can make a real impact.

We're looking for a Plumber/Pipefitter
. You will perform a wide variety of journey-level plumber/pipefitter activities including layout, fabrication, installation, and repair of plant piping systems designed to transport a variety of liquid and gaseous substances. You will provide minor modifications, alterations, and maintenance services including service plumbing to all LLNL facilities and utilities. This position is in the Maintenance Production Division within the Infrastructure Maintenance and Utilities Department and may require work at Site 300 which is located in Tracy, California.

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

• Layout, fabricate, install, repair, and troubleshoot commercial and industrial piping and equipment; leak detection; line locating, and testing of piping systems utilizing tools and equipment of the trade. May be required to work from system drawings.
• Assemble and secure pipes, tubes, fittings, and related equipment, according to specifications, by welding, brazing, cementing, soldering, and threading joints.
• Repair and install underground mechanical utilities (city water, sewer, etc.).
• Make decisions jointly with coworkers that involve techniques, guidelines, and procedures that are well defined.
• Provide effective customer service, interacting with administrative, supervisory, and craft personnel.
• Prepare standard reports including permits, deficiency forms, and preventative maintenance work requests.
• Use motor vehicles in the transport of materials throughout the facility.
• 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, GED, or equivalent combination of education and experience.
• Completion of apprentice training program and/or basic journey-level skills, knowledge, and experience in the field of service repair, rough-in, top out and finish plumbing utilizing tools and equipment of the trade.
• Basic journey-level skills, knowledge and experience in fabrication, installation, and repair of process piping systems. Proficient in layout and installation of piping systems.
• Knowledge and experience using measuring instruments, glue, solvents, and adhesives.
  
  Knowledge and experience in installation and repair of underground sanitary sewer systems.
• Basic knowledge of safety and OSHA laws and regulations.
• Ability to use independent judgment and decision making to provide best method to complete the task.
• Effective customer service and interpersonal skills to interact effectively in writing and verbally with technical, administrative, and management personnel and work effectively independently or as a part of a team.
• Basic knowledge of personal computers and associated software to prepare logs and reports, send and receive e-mails, perform computer-based training, and timekeeping entry.
• Valid California driver's license.

• Current certification in pipe welding.
• Current certification in high-pressure installation.
• In-depth understanding and knowledge of the Uniform Plumbing Code Book.

$44.19 - $53.72 hourly. This is the lowest to highest salary range in good faith we believe would pay for this role at the time of this posting. An employee's 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.

#LI-Onsite

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

• 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 - https://(Use the "Apply for this Job" box below).-values

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…