Dojo is Open Source software, and we'd love for you to get involved with the project. Contributors use several tools to help keep development organized, including Subversion for source code control and Trac for bug-tracking.
Discussions about development on and with Dojo usually happens on the dojo-interest list, and project developers often hang out in IRC at irc.freenode.net #dojo
Dojo also depends in large part on the continued generosity of our corporate sponsors who provide logistical, financial, and personnel support for the project. If your organization would like to help Dojo flourish, please get in touch with Alex Russell.
Dojo is an Open Source project, so we keep our standards very high and try to make decisions with community input. Therefore, in order to contribute code to Dojo a developer must submit a Contributors License Agreement to the Dojo Foundation. Contributors who make large contributions or who have earned the respect of their peers are granted commit privileges and can directly apply their changes to Dojo for everyone else to benefit from. Committers are allowed to vote in Foundation matters and in general determine the direction of the project.
You can find an up-to-date list of Dojo committers here.