Our client, Centrum Cyfrowe, a Warsaw-based NGO, is looking for a Python developer (though experience with Ruby is a plus) to help them work on, among others, a crowdsourcing project OtwarteZabytki.pl that we built for them.

More information can be found on their Facebook page and in the official press info.

We've been working on otwartezabytki.pl with Centrum Cyfrowe for quite some time and we can wholeheartedly say that their team consists of passionate and interesting people.  The code is open-sourced, by the way: https://github.com/monterail/otwartezabytki - and the job offer includes working with external contractors, one of which is Monterail.