This job post has expired on March 26, 2026. It is likely that the position has already been filled.

Physics PhD Expert (General Relativity, Astrophysics & Cosmology) | $70–90/hr | Remote (US/UK/Canada/Western Europe)
Mercor is partnering with one of the world's leading AI labs to bring on credentialed Physics PhDs specializing in General Relativity, Astrophysics, and Cosmology. This is an exciting opportunity to apply your deep domain expertise to shape the future of large language model development.
As a subject matter expert, you will contribute to a cutting-edge AI data project by crafting rigorous, high-quality physics problems that help train and refine state-of-the-art AI models. Your work will directly influence the next generation of AI innovation.
The screening process is quick and straightforward — expect a short AI interview and a brief form, taking approximately 20–40 minutes in total.
Apply today and leverage your expertise to help advance the frontier of artificial intelligence.