Many companies list job postings on Art Station, some of them list exclusively on Art Station.
If you have an Art Station page, you can get updated job listings. You can also check jobs page: https://www.artstation.com/jobs
Odd Gentlemen is one company that only lists on Art Station, not their own site. They are currently looking for a 2D stylized environment concept artist (remote) and a 3D stylized environment artist (relocation assistance provided) https://www.artstation.com/jobs/c/the-odd-gentlemen