A recruiter reached out from the Austin office. I respect what you guys do as a company, and I was hoping to ask some questions about the general culture, interview process, etc.
Twitter is the easiest way I can think of to exchange info (@loeschg)
Why don't you speak with the recruiter or ask them to forward you contact information for an engineer there(or whatever it is you'd be doing)?
The questions you want to ask are literally exactly what the recruiter or another employee are there to answer for you.