The criminal complaint against Ulbricht (which can be seen here) refers to a LinkedIn page for Ulbricht, saying he is a University of Pennsylvania and University of Texas graduate.

What appears to be Ulbricht's profile can be found here (note that it actually lists Pennsylvania State University, not U. Penn, for his graduate studies). The profile says that Ulbricht was a Graduate Research Assistant at Penn State from August 2006 to December 2008, before becoming a CEO of Good Wagon Books (a service that picked up unwanted books and gave them new homes) from January 2010 to May 2011. There are no more recent positions on the page.