[ES_JOBS_NET] Atmospheric Aerosol Experiments Postdoctoral Researcher, Los Alamos

Christine Wiedinmyer christinew at ucar.edu
Mon Jul 27 09:50:14 MDT 2026


*Atmospheric Aerosol Experiments Postdoctoral Researcher*

https://lanl.jobs/search/jobdetails/atmospheric-aerosol-experiments-postdoctoral-researcher/46a5b07b-d2d2-4b32-a152-fa7ccb8c755f

What You Will Do

Come join the best and brightest minds in the world at one of the most
innovative and creative multidisciplinary research institutions. The Center
for Aerosol-gas Forensics (CAFE) team at Los Alamos National Laboratory
seeks an intellectually agile experimental postdoctoral researcher to
validate next-generation nuclear fallout models.

You will lead laboratory measurements on fallout mimics and analyze the
resulting data to validate microphysical models. Working alongside
modelers, you will connect these measurements to high-temperature particle
nucleation modeling and large eddy simulation of nuclear test data.

This research leverages CAFE's state-of-the-art particle microphysics and
cloud chamber laboratory to generate the data that anchors robust fallout
transport codes for nuclear deterrence and national security.

You will join the Modeling and Observations of Earth Systems Group within
the Earth and Environmental Sciences Division, a collaborative,
experimentally driven team that tackles strategic national security
challenges. Our atmospheric science spans weapons effects, energy
advancement, and environmental stewardship, with active collaborations
across defense agencies and national laboratories.


What You Need


You will be an experimentalist with a background in aerosol measurements
and atmospheric science, and a strong interest in data-driven
experiment-model validation.

The role centers on running cloud chamber experiments, generating aerosol
mass spectrometry data, and using Python to analyze those measurements and
validate microphysical models.

You will work both independently and collaboratively within a
multidisciplinary team of experimentalists and modelers, publishing in
peer-reviewed journals and presenting at national


Minimum Job Requirements:

   - Demonstrated expertise in aerosol measurements and microphysical
   analysis.
   - Experience analyzing aerosol mass spectrometry data.
   - Proficiency in Python for data analysis and model validation.
   - Demonstrated ability to conduct independent and collaborative research.
   - Strong written and oral communication, supported by peer-reviewed
   publications and presentations.
   - Ability to work effectively in a diverse, multidisciplinary team.


Desired Qualifications:

Candidates with a strong background in one or more of the following areas
are encouraged to apply:

   - Experience with large language model coding harnesses for scientific
   software development.
   - Experience with state-of-the-art aerosol chemistry and microphysics
   instruments.
   - Experience with particle microphysics and cloud measurements and
   analysis.
   - Experience or interest in atmospheric transport models and large eddy
   simulation.
   - Experience or interest in high-temperature particle nucleation.
   - Interest in running large-scale models on high-performance computing
   resources.
   - Interest in potential environmental issues for nuclear deterrence.


Education/Experience:


   - A Ph.D. in Atmospheric or Earth System Science, Chemistry,
   Environmental Engineering, Mechanical Engineering, Aerospace, Physics, or a
   related STEM field.
   - Candidates must have completed all Ph.D. requirements within the last
   five years, or complete them by the start of the appointment.



Essential Job Functions:


   - Physical: Able to operate instruments and perform experiments.
   - Take safety and security training to be compliant to be approved for
   Lifting.



Work Location: The work location for this position is onsite and located in
Los Alamos, NM. All work locations are at the discretion of management.

Note to Applicants:

Due to federal restrictions contained in the current National Defense
Authorization Act, citizens of the People's Republic of China-including the
special administrative regions of Hong Kong and Macau-as well as citizens
of the Islamic Republic of Iran, the Democratic People's Republic of Korea
(North Korea), and the Russian Federation, who are not Lawful Permanent
Residents ("green card" holders) are prohibited from accessing facilities
that support the mission, functions, and operations of national security
laboratories and nuclear weapons production facilities, which includes Los
Alamos National Laboratory.

Where You Will Work

Located in beautiful northern New Mexico, Los Alamos National Laboratory
(LANL) is a multidisciplinary research institution engaged in strategic
science on behalf of national security. Our generous benefits package
includes:

   - PPO or High Deductible medical insurance with the same large
   nationwide network
   - Dental and vision insurance
   - Free basic life and disability insurance
   - Paid childbirth and parental leave
   - Award-winning 401(k) (6% matching plus 3.5% annually)
   - Learning opportunities and tuition assistance
   - Flexible schedules and time off (PTO and holidays)
   - Onsite gyms and wellness programs
   - Extensive relocation packages (outside a 50 mile radius)

Additional Details

Directive 206.2 - Employment with Triad requires a favorable decision by
NNSA indicating employee is suitable under NNSA Supplemental Directive 206.2
<https://int.lanl.gov/org/ddops/oma/prime-contract-management/applicable-directives/_assets/docs/DOE-O-206.2-Chg-2-LtdChg-Identity,-Credential,-and-Access-Management-ICAM-1.pdf>.
Please note that this requirement applies only to citizens of the United
States. Foreign nationals are subject to a similar requirement under DOE
Order 142.3A.

Clearance: Q (Position will be cleared to this level). Selected applicants
will be subject to a background investigation conducted by or on behalf of
the Federal Government, and must meet eligibility requirements* for access
to classified matter. This position requires a Q clearance, and obtaining
such clearance requires US Citizenship except in extremely rare
circumstances. Dependent upon the position, additional authorization to
access classified information may be required, which may or may not be
available to dual citizens. Receipt of a Q clearance and additional access
authorization ultimately is a decision of the Federal Government and not of
Triad.

*Eligibility requirements: To obtain a clearance, an individual must be at
least 18 years of age; U.S. citizenship is required except in very limited
circumstances. See
<https://int.lanl.gov/org/ddops/oma/prime-contract-management/applicable-directives/_assets/docs/DOE-O-206.2-Chg-2-LtdChg-Identity,-Credential,-and-Access-Management-ICAM-1.pdf>
<https://int.lanl.gov/org/ddops/oma/prime-contract-management/applicable-directives/_assets/docs/DOE-O-206.2-Chg-2-LtdChg-Identity,-Credential,-and-Access-Management-ICAM-1.pdf>DOE
Order 472.2
<https://www.directives.doe.gov/directives-documents/400-series/0472.2-border-a-chg1-ltdchg/@@images/file>
for
additional information.
No Clearance: Position does not require a security clearance. Selected
candidates will be subject to drug testing and other pre-employment
background checks.

HRP: This position is subject to the requirements of the DOE Human
Reliability Program as specified in 10 Code of Federal Regulation, Part
712, §712.11. These requirements include on going drug and alcohol testing,
as well as periodic medical and psychological evaluations.

426.2A: This position is subject to DOE Order 426.2A, Personnel Selection,
Training, and Qualification Requirements for DOE Nuclear Facilities, which
establishes entry-level requirements to ensure candidates selected for
specific positions can successfully perform the requirements of the job.

New-Employment Drug Test: The Laboratory requires successful applicants to
complete a new-employment drug test and maintains a substance abuse policy
that includes random drug testing. Although New Mexico and other states
have legalized the use of marijuana, use and possession of marijuana remain
illegal under federal law. A positive drug test for marijuana will result
in termination of employment, even if the use was pre-offer.

Internal Applicants: Regular appointment employees who have served the
required period of continuous service in their current position are
eligible to apply for posted jobs throughout the Laboratory. If an employee
has not served the required period of continuous service, they may only
apply for Laboratory jobs with the documented approval of their Division
Leader. Please refer to Policy Policy P701
<https://int.lanl.gov/policy/documents/P701.pdf> for applicant eligibility
requirements.

Equal Opportunity: Los Alamos National Laboratory is an equal opportunity
employer. All employment practices are based on qualification and merit,
without regard to protected categories such as race, color, national
origin, ancestry, religion, age, sex, gender identity, sexual orientation,
marital status or spousal affiliation, physical or mental disability,
medical conditions, pregnancy, status as a protected veteran, genetic
information, or citizenship within the limits imposed by federal, state,
and local laws and regulations. The Laboratory is also committed to making
our workplace accessible to individuals with disabilities and will provide
reasonable accommodations, upon request, for individuals to participate in
the application and hiring process. To request such an accommodation,
please send an email to applyhelp at lanl.gov or call (505)-664-6947.

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