In administrative roles, he has served as director of the School of Accountancy & MIS and as associate dean for the Driehaus College of Business. Ahern teaches auditing, intermediate accounting, financial accounting and managerial accounting. Ahern was appointed a Fulbright Scholar and taught for a year at Kazan Federal University (Volga Region) in Kazan Russia. He also served as a Faculty Resident with Arthur Andersen & Co. conducting audits in Andersen's Financial Services Audit Group and offering tax services as a member of Andersen's Personal Financial Planning group. From 2000 to 2005 he served as Project Director on a U.S. State Department Grant, "Business Education In Tatarstan."