A full time Sage developer position opening at Université Paris-Sud, funded by OpenDreamKit:
http://opendreamkit.org/2015/05/22/developer-position-paris-sud/
A formal announcement will be posted there in the coming days, in particular with a specific timeline. For now we hope to run interviews at the end of June, for a recruitment in early Fall 2015 and for up to four years.
A second full-time developer will be hired at Université Paris-Sud, presumably in Fall 2016.