The Arizona Cosmology Lab, a research unit of the University of Arizona (UA) Department of Astronomy and Steward Observatory (SO), invites applications for the Steward Observatory Prize Fellowship in Cosmological Data Analysis (multiple hires expected). 

Fellows are expected to conduct independent research in cosmological data analysis with ongoing and future surveys, in particular SPHEREx, Simons Observatory, Rubin Observatory's LSST, Roman Space Telescope, and DESI. Applicants should outline their research plans to optimally extract cosmological information using one or multiple of these datasets. Priority will be given to candidates who can connect their science to SPHEREx, Simons Observatory, and LSST. Expertise in modeling cosmological observables through analytical methods or numerical simulations, machine learning, statistical inference, and data reduction is beneficial. 

As members of the Arizona Cosmology Lab, fellows will be provided with priority access to UA and national supercomputing resources, close mentorship by experienced faculty, and opportunities to co-advise graduate students and mentor undergraduates. UA offers a world-class research environment in astrophysics with strong interdisciplinary programs across the Departments of Astronomy, Physics, Planetary Sciences, the UA Data Science Institute, UA Space Institute, and NSF's NOIRLab. 

Application Materials Required:

1. Cover Letter

2. Curriculum Vitae

3. Research Statement

4. Publication List

5. Three Reference Letters (to be submitted by the reference writers at this site)     

Application materials may be submitted through AJO.

For full consideration all materials should be received by December 15, 2025.