Prior to this appointment, he served as executive vice president and chief financial officer with responsibility for finance and accounting, treasury and risk management, and played an expanded role in strategy and business operations.
Before joining QNA, Slack spent 13 years with BAE Systems, serving most recently as the president of the company's U.S. combat systems business where he directed operations involving more than 9,000 employees across 16 states.
Prior to BAE, Slack served as director of group finance for TRW's systems and information technology group.
He has also held positions at BDM International, Inc., Honeywell Federal Systems, Inc. and the Virginia Department of Taxation.
Gary holds a Bachelor of Science degree in business administration from Longwood University and is a certified public accountant.