Want to work on Ubuntu? Canonical is hiring.
General careers page : <a href="http://www.canonical.com/about-canonical/careers" >
Specific to my team, I'm looking for someone to keep up with X.org, Mir and the various graphics related packages: 
<a href="https://ch.tbe.taleo.net/CH03/ats/careers/requisition.jsp?org=CANONICAL&amp;cws=1&amp;rid=652" >
EDIT: I should note, nearly all positions are remote including the one on my team.