Art or technology contractors are the direction many game companies are moving. Often there will be a core development team, but much of the work is outsourced. Be on the lookout for outsourcing companies.
Companies such as:
ArtCore Studios: Game Art and Concept Art Outsourcing. Currently has Character artist, 3D artist and Concept artist openings.
Art Bully Productions: Their website says they are always looking for good freelancers, so if you are interested, send them a CV/resume and a link to your portfolio
Virtuos Games: Several Job openings in art, programming and production
Zatun (India) has several openings for artists and designers.
Anshar Studios (Poland) has openings
N-iX (Ukraine and Poland) has mostly software engineer openings right now.
…..look up game production services. There are a lot of companies and many of them have an open call for freelance/contract developers to send them your resume and portfolio link.