Mechanical TechnologistsSr. Mechanical Technologist HEAF

We have an opening for Mechanical Technologist/ Sr. Mechanical Technologist. You will support new and on-going experiments in The High Explosives Applications Facility (HEAF). This position is in the Defense Technologies Engineering Division (DTED)/Weapon Technologies and Engineering (WTE) Program supporting the Strategic Deterrence (SD) Principal 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

• Provide general technical support to engineering scientific and technical staff to plan and conduct experiments at LLNL and other off-site locations in support of physics experiments mechanical engineering evaluation and to ensure operational readiness of four facilities.
• Design fabricate assemble and disassemble moderately complex mechanical components and systems using work control process and procedure requirements.
• Operate mechanical diagnostic equipment maintain area controls assist with mechanical diagnostic calibration and alignment test prior to experiment execution and perform data recovery after experiment execution.
• Apply intermediate knowledge of materials and manufacturing processes in solving mechanical problems.
• Provide operations maintenance design fabrication assembly support and maintain systems documentation and experimental records.
• Perform facility related and technical functions such as maintenance testing upgrades to equipment control and interlock systems checks. 
• Perform other duties as assigned.

In Addition at the 533.3 level

• Provide advanced technical assembly and disassembly support of complex assemblies.
• Design fabricate assemble and disassemble complex mechanical components and systems including planning and selecting materials equipment and methods.
• Assist in developing test parameters comprehensive troubleshooting and testing materials components or systems identifying problems and providing input on solutions.

Qualifications :

• Ability to obtain and maintain a U.S. DOE Q-level security clearance which requires U.S. Citizenship.
• Associate degree in Engineering Technology formal apprenticeship or equivalent combination of education and related experience.
• Experience solving a variety of moderately complex technical problems in completion of work assignments.
• Experience with mechanical diagnostic equipment maintaining area controls assisting with mechanical diagnostic calibration and alignment testing prior to experiment execution and performing data recovery after experiment execution.
• Experience in mechanical fabrication and assembly.
• Effective written and verbal communication and presentation skills and ability to work constructively in a multidisciplinary team environment.
• Ability to complete and maintain certifications as required by the position.
• Ability to lift 50 a safe and controlled manner.
• Ability to become medically qualified to wear respiratory and other protective equipment and perform moderate work effort while wearing respirator. 

In Addition at the 533.3 level

• Experience working with high level precision component assemblies with tight tolerances.
• High level technical skills and knowledge of engineering principles to solve complex problems using established guidelines techniques and procedures.
• Ability to read and follow complex assembly procedures engineering notes sketches and engineering drawings.

Qualifications We Desire

• Experience fulfilling Work Control process and procedure requirements.
• Experience working with radioactive/fissile materials.
• Knowledge of Geometric Dimensioning and Tolerancing standards

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 in good faith we would pay for this role at the time of this posting. Pay will not be below any applicable local minimum wage.  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 :

All your information will be kept confidential according to EEO guidelines.

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  Clearance

  This position requires a Department of Energy (DOE) Q-level clearance.  If you are selected we will initiate a Federal background investigation to determine if you meet eligibility requirements for access to classified information or matter. Also all L or Q cleared employees are subject to random drug testing.  Q-level clearance requires U.S. citizenship. 

  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.

  Wireless and Medical Devices

  Per the Department of Energy (DOE) Lawrence Livermore National Laboratory must meet certain restrictions with the use and/or possession of mobile devices in Limited Areas. Depending on your job duties you may be required to work in a Limited Area where you are not permitted to have a personal and/or laboratory mobile device in your possession.  This includes but not limited to cell phones tablets fitness devices wireless headphones and other Bluetooth/wireless enabled devices.  

  If you use a medical device which pairs with a mobile device you must still follow the rules concerning the mobile device in individual sections within Limited Areas.  Sensitive Compartmented Information Facilities require separate approval. Hearing aids without wireless capabilities or wireless that has been disabled are allowed in Limited Areas Secure Space and Transit/Buffer Space within buildings.

  Pre-Placement Medical Exam

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

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  We are an equal opportunity employer that is committed to providing all with a work environment free of discrimination and harassment. 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.

  Reasonable Accommodation

  Our goal is to create an accessible and inclusive experience for all candidates applying and interviewing at the Laboratory.  If you need a reasonable accommodation during the application or the recruiting process please use our online form to submit a request. 

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  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 here.

  
  

  Remote Work :

  No

  
  

  Employment Type :

  Full-time