Buse previously served as the manager of information technology audits for the Minnesota Office of the Legislative Auditor. During his 19 years as an auditor, Buse oversaw IT audit work conducted on large government computer systems. He serves on the board and is past president of the Minnesota chapter of the Information Systems Audit and Control Association. Buse received his bachelor's degree in accounting from St. Cloud State University and holds a number of accounting, auditing and IT security certifications.