The Kepler FAQ is divided into three parts:
A General FAQ for questions about the whole project, a User FAQ for questions related to Kepler use and a developers FAQ for questions related to the development of Kepler and its modules.
How can I help/join/contribute for the project?
You can start by using Kepler, but assuming you already use it and want to get closer to the team, you can check the Developers section for more details.