· Research Assistant, LFCS, University of Edinburgh2024–
· U.S. Secretary of Transportation, Department of Transportation2017–2021
· U.S. Secretary of Labor, Department of Labor2001–2009
· Distinguished Fellow, The Heritage Foundation1996–2001
· President and CEO, United Way of America1992–1996
· Director, Peace Corps1991–1992
· Deputy Secretary of Transportation, U.S. Department of Transportation1989–1991
· Chairwoman, Federal Maritime Commission1988–1989
· Deputy Administrator of the Maritime Administration, U.S. Department of Transportation1986–1988
· Vice President of Syndications, BankAmerica Capital Markets Group
· International Banker, Citicorp
· Master of Business Administration (MBA), Harvard Business School
· Bachelor of Arts in Economics, Mount Holyoke College