Astrophysics Postdoctoral Researcher

** What You Will Do*
* The Center for Theoretical Astrophysics (CTA) invites applications for multiple postdoctoral positions in theoretical and computational astrophysics for fiscal year 2027. The CTA is a collaborative, cross-disciplinary community of over 50 staff, postdocs, and students from across LANL, focused on advancing astrophysics research and its connections to laboratory missions. The Center promotes innovative methods, fosters broad expertise, and provides a supportive environment for early career researchers.

Postdocs in the CTA use semi-analytical models, high-performance multi-physics simulations, data analysis, machine learning and artificial intelligence to tackle key problems across astrophysics. Research areas include supernovae and kilonovae, gamma-ray bursts, accretion, stellar evolution, planetary physics, and cosmology. CTA teams collaborate with LANL and external partners to connect theory with observations from missions such as HAWC, NuSTAR, LIGO, LISA, JWST, EHT, and ZTF.

The Center also works to translate computational advances in astrophysics to other LANL mission areas, including the Advanced Simulation and Computing Program, the Office of Experimental Sciences, and Global Security programs.

** What You Need*
* ** Minimum

Job Requirements:

*
* + Education/

Experience:

Completion of a PhD in Astronomy, Astrophysics, Physics, Mathematics, Engineering, or related field within the last five years or expected completion within the current academic year.

** Desired

Qualifications:

*
* ** Technical Knowledge:*
* + Knowledge and experience in developing, applying, or analyzing numerical simulations to advance the understanding of astrophysics.

+ Expertise in one or more of the following areas: hydrodynamics, radiation transport, reaction networks, atomic/molecular physics, nuclear physics, plasma physics, high energy density physics experiments, machine learning or artificial intelligence.

+

Experience with compiled or interpreted programming languages, for example: C, C++, Fortran, Julia, and/or Python.

+ Experience applying data science including statistical modeling, predictive analytics, and large-scale data processing to extract insights from complex scientific datasets from simulation, experiment, or observation.

** Technical Communication:*
* + Written and oral technical communication skills as evidenced by peer-reviewed journal publications and/or presentations at professional conferences.

** High-Performance Computing:*
* + Experience in working in a high-performance computing environment.  This includes familiarity with running, developing, or post-processing simulations and data on large systems or experience in programing for GPU's and multi-core systems with MPI, CUDA, Kokkos, OpenMP, etc

*
* Collaboration:

*
* + Experience working as a productive member of a team, including the demonstrated ability to develop solutions for complex problems while effectively networking with peers.  A strong desire to work in broad interdisciplinary teams that cross LANL programs.

*
* 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:*
* Located Inquiries should be sent to . When applying on-line, please include the following files with your application: a CV (please include month/year of PhD); three letters of reference (may be submitted online by applicant or emailed by letter writer to ); and a detailed cover letter describing the candidate's interest in working with the CTA, mentor(s) the candidate is interested in collaborating with, and how they satisfy the requirements for the position.

** Fellowship Opportunities:
** Candidates may be considered for a Director's Fellowship, CNLS Fellowship, Chick Keller Fellowship, or Nicholas

C. Metropolis Fellowship.

Postdoctoral positions are for 2 years, with a potential for a renewal for a third.

Minimum salary for a postdoctoral researcher is $97,000 and will increase with post-PhD experience and fellowships.

** For full consideration for the fall 2026 quarterly fellowship round please apply by September 7, 2026.  For full consideration for the winter 2027 quarterly fellowship round please apply by November 30, 2026. For all other positions apply by February 2, 2027, for full consideration for the 2027 fiscal year.*
* For general information go to the websites for the Postdoc Program (https://(Use the "Apply for this Job" box below).) or the Center For Theoretical Astrophysics ()

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