Keyword Search

Back to open positions

Mass Spectrometrist

Entry Level | Full-time
Physical Life Sciences | livermore, CA | 05/12/2023

Apply Now  

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.

Pay Range

$123,960.00  - $159,168.00  Annually

Please note that the pay range information is a general guideline only. Many factors are taken into consideration when setting starting pay including education, experience, the external labor market, and internal equity.

Job Description

We have an opening for a Mass Spectrometrist to provide support to nuclear forensics projects performing isotopic analysis of actinides or trace metals in variety of complex sample types.  Your work involves completing high-purity separations of actinides or trace metals from environmental and nuclear materials and performing high-precision isotopic analyses by multi-collector inductively coupled plasma mass spectrometry (MC-ICP-MS).  This position is in the Chemical and Isotopic Signatures group of the Nuclear and Chemical Sciences Division.

In this role you will:

  • Independently prepare samples for isotopic analysis by digesting, quantitatively splitting and spiking, and purifying from sample matrix by ion exchange and other methods.
  • Perform isotopic analysis of actinides and metals by MC-ICP-MS.
  • Perform data reduction and calculations and prepare data reports.
  • Maintain laboratory records for quality control and quality assurance purposes.
  • Maintain chemistry laboratory equipment and interact with vendors or technicians for equipment purchase or repairs.
  • Provide solutions to problems of moderate complexity.
  • Interact with and support team members and the principal investigators on multiple projects
  • Perform other duties as assigned.


  • Ability to secure and maintain a U.S. DOE Q-level security clearance which requires U.S. Citizenship.
  • M.S. in geochemistry, analytical chemistry, radiochemistry or related field, or the equivalent combination of education and experience.
  • Experience in purification of trace metals or actinides from complex matrices for isotopic analysis by magnetic sector multi-collector mass spectrometry.
  • Experience performing high-precision isotopic analysis by MC-ICP-MS.
  • Experience preparing samples in a clean room setting.
  • Experience maintaining and troubleshooting laboratory equipment.
  • Experience performing quality evaluation of analytical data.
  • Effective communication and interpersonal skills necessary to work in a collaborative research environment.

Qualifications We Desire

  • Intermediate proficiency in a programming language such as Python, R or Matlab.
  • Ability to coordinate complex tasks by interacting independently with professionals in the execution of responsibilities.
  • Proficient written and verbal communication skills necessary to author technical reports and deliver technical presentations

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?

Security 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.

Beware of Fraudulent Job Postings. LLNL’s hiring practices:

  • Never requires job applicants to pay an application/training fee or submit personal documents like bank account details, passport number, Social Security number, tax forms or credit card information as part of the application process. 
  • For interviews and to be granted access to a Federal facility, a LLNL employee will contact you directly to collect visa, passport number, and/or Social Security number.  To vet the authenticity of the employee please have them provide you their name and phone number and verify at
  • Involves at least one interview (virtual or in-person) and never interviews job applicants through chat platforms such as Google Hangouts, or via correspondence through text and instant messaging systems.
  • Only sends email communications to job applicants from domain “” or via their applicant tracking system, [email protected]. Occasionally LLNL uses third-party vendors that will contact you about job opportunities.  If a recruiter contacts you to apply, you will always be directed to our career page to apply through our career site.
  • Encourages all applicants to visit LLNL’s careers page at if they saw the job posting on another site prior to applying to ensure the job posting is accurate and valid.

Equal Employment Opportunity

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.

We invite you to review the Equal Employment Opportunity posters which include EEO is the Law and Pay Transparency Nondiscrimination Provision.

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. 

California 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 here.

Videos To Watch

Apply Now  

Refine Search Clear All

Career Areas

Show More

Experience Level

Employment Type



Show More

Security Clearance