Apply for one position, and use your cover letter to indicate the other positions you would be interested in. As we review your application, we will see which positions are a good match and will approach you about any other potential opportunities.
After a certain period of time, your application will be deleted. If you like, however, we can also save your file for consideration when positions become vacant in the future.
At least three months, although six months or longer is preferable.
You can apply at any time - ideally at least 1-2 months before the time you wish to begin.