A couple of corrections:
We need C++ developers, a Qt developer to work on our editor, and volunteers to bug test and review our code.
A newly joined developer will usually not be able to do meaningful code review, because he doesn't understand the code base well enough. I suggest to cut this part out.
Experience with C/C++
Please no. We had this discussion a while back. It is not C/C++. It is C++.
The editor is an external program capable of controlling almost all of the game or of create mods, adding user-made game content, viewing game data, retexturing the game world, and altering GUI elements.
This sentence is odd. Relative hard to read and also not fully correct. You won't be able to do any retexturing (except for the terrain, which isn't really worth mentioning). There are currently no plans for GUI editing functions. We may get something like this eventually, but that will be way past 1.0 (both editor and OpenMW).
