A few hours ago, Elon tweeted:
Ramping up the autopilot software team at Tesla to achieve generalised full autonomy. If interested, contact autopilot@teslamotors.com.
We are looking for hardcore software engineers. No prior experience with cars required. Please include code samples or link to your work.
Should mention that I will be interviewing people personally and Autopilot reports directly to me. This is a super high priority.