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Senior/Principal Mechanical Technologist - GTS Experimental Operations, Onsite

Sandia National Laboratories
$88,900 - $171,900
401(k), relocation assistance
United States, California, Livermore
Jan 29, 2026
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Job ID
696735
Location
Livermore, CA
Full/Part Time
Full-Time
Regular/Temporary
Regular
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About Sandia

Sandia National Laboratories is the nation's premier science and engineering lab for national security and technology innovation, with teams of specialists focused on cutting-edge work in a broad array of areas. Some of the main reasons we love our jobs:

  • Challenging work with amazing impact that contributes to security, peace, and freedom worldwide
  • Extraordinary co-workers
  • Some of the best tools, equipment, and research facilities in the world
  • Career advancement and enrichment opportunities
  • Flexible work arrangements for many positions include 9/80 (work 80 hours every two weeks, with every other Friday off) and 4/10 (work 4 ten-hour days each week) compressed workweeks, part-time work, and telecommuting (a mix of onsite work and working from home)
  • Generous vacation, strong medical and other benefits, competitive 401k, learning opportunities, relocation assistance and amenities aimed at creating a solid work/life balance*

World-changing technologies. Life-changing careers. Learn more about Sandia at: http://www.sandia.gov

*These benefits vary by job classification.

What Your Job Will Be Like

We are seeking an experienced Mechanical Technologist to join our GTS Experimental Operations team. In this role, you will be part of a group responsible for daily operations in the high-pressure testing facility as well as a welding and brazing facility.

On any given day, you may be called on to:

  • Design, build, modify, repair, and operate a wide variety of mechanical and electrical apparatus and equipment.
  • Conduct experimental tests in close collaboration with GTS engineering staff.
  • Troubleshoot electronic control systems for various welding and laboratory apparatus.
  • Devise, fabricate, and assemble new or modified electronics hardware and wiring.
  • Set up and test complete prototype units and subassemblies under operational conditions.
  • Analyze data and recommend modifications to components or test procedure to meet desired specifications.

Due to the nature of the work, the selected applicant must be able to work onsite 100% of the time.

Air Travel up to 15% may be required

Applicants on this requisition may be interviewed by multiple organizations at Sandia National Laboratories.

Salary Range

$88,900 - $171,900

*Salary range is estimated, and actual salary will be determined after consideration of the selected candidate's experience and qualifications, and application of any approved geographic salary differential.

Qualifications We Require

  • High school diploma with a minimum of three years of directly related experience, or equivalent combination of education and experience
  • General fabrication (hands-on/mechanical) experience
  • Ability to obtain and maintain a U.S. DOE Q security clearance
Qualifications We Desire

  • Experience with the troubleshooting of electronic components and hardware
  • At least 2 years of laboratory experimental experience required
  • Experience in a laboratory R&D environment
  • Experience designing and fabricating mechanical hardware
  • Experience with manual or CNC machining
  • CAD experience
  • Experience designing and assembling gas handling equipment
  • AA degree or equivalent experience in mechanical engineering technology
  • Experience working with high-pressure systems
  • Experience working with vacuum systems
  • Experience using DMMs, oscilloscopes, soldering equipment, and other electronic test equipment
  • Experience troubleshoot PLC and industrial system controllers
  • Experience in data acquisition
  • Experience with fabrication of electric cables and circuitry
  • Welding/brazing experience
  • Active DOE Q-level security clearance
About Our Team

The GTS Experimental Operations group is a group of engineers and technologists who are responsible for the operation of laboratory experimental facilities that support the Gas Transfer Systems mission. The group operates a high-pressure testing facility, and a welding/brazing facility that conduct a range of high-rigor experimental research and development activities including high pressure gas experiments, vacuum experiments, explosive testing, mechanical assembly and light fabrication, welding and brazing development, and other gas transfer system characterization and development tests. Our personnel routinely interact with other Sandia engineering and research groups, Lawrence Livermore National Laboratory, Los Alamos National Laboratory, production agencies (located in Kansas City, Savannah River, and Texas), the National Nuclear Security Agency (NNSA), and the Department of Defense (DOD).

Posting Duration

This posting will be open for application submissions for a minimum of seven (7) calendar days, including the 'posting date'. Sandia reserves the right to extend the posting date at any time.

Security Clearance

Sandia is required by DOE to conduct a pre-employment drug test and background review that includes checks of personal references, credit, law enforcement records, and employment/education verifications. Applicants for employment need to be able to obtain and maintain a DOE Q-level security clearance, which requires U.S. citizenship. If you hold more than one citizenship (i.e., of the U.S. and another country), your ability to obtain a security clearance may be impacted.

Applicants offered employment with Sandia are subject to a federal background investigation to meet the requirements for access to classified information or matter if the duties of the position require a DOE security clearance. Substance abuse or illegal drug use, falsification of information, criminal activity, serious misconduct or other indicators of untrustworthiness can cause a clearance to be denied or terminated by DOE, resulting in the inability to perform the duties assigned and subsequent termination of employment.

EEO

All qualified applicants will receive consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, age, disability, or veteran status and any other protected class under state or federal law.

NNSA Requirements for MedPEDs

If you have a Medical Portable Electronic Device (MedPED), such as a pacemaker, defibrillator, drug-releasing pump, hearing aids, or diagnostic equipment and other equipment for measuring, monitoring, and recording body functions such as heartbeat and brain waves, if employed by Sandia National Laboratories you may be required to comply with NNSA security requirements for MedPEDs.

If you have a MedPED and you are selected for an on-site interview at Sandia National Laboratories, there may be additional steps necessary to ensure compliance with NNSA security requirements prior to the interview date.

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