“…every final candidate to work with us for three to eight weeks on a contract basis. Candidates do real tasks alongside the people they would actually be working with if they had the job…The goal is not to have them finish a product or do a set amount of work; it’s to allow us to quickly and efficiently assess whether this would be a mutually beneficial relationship. They can size up Automattic while we evaluate them.“
http://hbr.org/2014/04/the-ceo-of-automattic-on-holding-auditions-to-build-a-strong-team/ar/pr
Automattic seems like a cool place to work.