He is the Vice Provost for Information Technology and Chief Information Officer (CIO) at the University of Wisconsin-Madison, a position he has held since August 2011. Prior to that, he served for seven years as the CIO at the University of Wisconsin-Milwaukee.

Maas has served as the director of the EDUCAUSE Leadership Institute, the leading professional association for information technology in higher education, and he is presently serving as the board chair. He is also a member of the Internet2 External Relations PAG and Co-Chair of the Internet2 Global Summit Planning Committee. In addition, Maas is a member of the Board of Directors of Unizin and is serving a three-year term on the Board of Directors of IMS Global. Maas holds an MS in administrative leadership from the University of Wisconsin-Milwaukee as well as bachelor degrees in Accounting and MIS.