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Plumber/Pipefitter - Mid Shift

Posted June 18, 2026
Full-time Mid-Senior Level

Job Overview

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.

You will

  • 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.

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