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Biogeochemistry - Postdoctoral Researcher

Internship | Intern
Physical Life Sciences | livermore, CA | 03/12/2024

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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 looking for individuals that demonstrate an understanding of working in partnership with team peers, who engage, advocate, and contribute to building an inclusive culture, and provide expertise to solve challenging problems.

Pay Range

$108,840 Annually 

Job Description

We have an opening for a Biogeochemistry Postdoctoral Researcher to investigate soil-based CO2 removal as a negative emissions pathway. You will design and execute field experiments using state-of-the-art flux monitoring equipment to assess the ability of deeply rooted and perennial grasses to enhance soil carbon sequestration. You will investigate the processes driving flux observations, specifically the relationships between plant, soil, and microbial characteristics, using field and laboratory soil biogeochemistry measurements. This position is part of a larger project to assess the capacity of soils in California to sequester carbon and the effect of land management interventions on soil carbon sequestration and will involve participation in team sampling and analysis. You will be a part of the Center for Accelerator Mass Spectrometry group in the Atmospheric, Earth & Energy Division.

You will 

  • Investigate soil-based CO2 removal under deeply rooted and perennial grasses as a negative emissions pathway.
  • Design and execute a field study using state-of-the-art soil gas flux chambers and eddy covariance data to assess the exchange of carbon between the soil and atmosphere.
  • Conduct quality control checks, flux computation, data partitioning, uncertainty analysis, and statistical analyses of environmental data.
  • Identify relationships between plant types, microbial processes, and soil carbon cycling.
  • Conduct field sampling and laboratory analysis of soil carbon pools and calculate fluxes.
  • Publish your results in peer-reviewed journals and participate in scientific conferences.
  • Collaborate with scientists in a multidisciplinary team environment to evaluate the effects of different plan cultivars and soil treatments on soil-based CO2 removal.
  • Perform other duties as assigned.


  • Ability to perform fieldwork (collect gas flux, soil, biomass, and pore water samples) and experience with the measurement, analysis, and interpretation of CO2 gas flux from soils in the field.
  • Knowledge of terrestrial carbon cycling and methods for quantifying the impact of plant and microbial processes on carbon dynamics.
  • Experience with statistical analysis of environmental data.
  • Ability to perform independent research and use a scientific approach to solve problems.
  • Effective ability to collaborate with a team of scientists of diverse backgrounds.
  • Proficient verbal and written communication skills, as evidenced by published results and presentations. 

Qualifications We Desire

  • Experience maintaining and troubleshooting equipment in a field setting.
  • Experience manipulating and analyzing large observational datasets.
  • Programming experience in R, MATLAB, Python, or similar.
  • Experience with stable isotopes or radioisotopes.
  • Interest in science outreach and community engagement.

Additional Information

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




Position Information

This is a Postdoctoral appointment with the possibility of extension to a maximum of three years, open to those who have been awarded a PhD at time of hire date.

Why Lawrence Livermore National Laboratory?

Security Clearance

None required.  However, if your assignment is longer than 179 days cumulatively within a calendar year, you must go through the Personal Identity Verification process.  This process includes completing an online background investigation form and receiving approval of the background check.  (This process does not apply to foreign nationals.) 

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.

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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. 

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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.

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