Mark started his career with Deloitte in the Enterprise Risk Services practice. He is a Certified Public Accountant, Certified Internal Auditor and Certified Information Systems Auditor and he holds degrees from Stonehill College and Northeastern University. Mark transitioned into private industry (Internal Audit) in 2003 at Staples Inc. In 2008, Mark accepted a position with Altra Industrial Motion, Inc. (Global Power Transmission Manufacturing Company) as the Chief Audit Executive and then transitioned to a Chief Information Officer before joining Houghton Mifflin Harcourt (Student Text Book and Digital Content Provider for K-12) in 2012 as the Vice President of Internal Audit. He has been with the Mohegan Tribe (Mohegan Sun) in Connecticut as the Chief Audit Executive since 2016.