Debby has been in the Financial Services Industry for over thirty years with twenty-two of them at Citigroup. While entering the field as a Sales Representative at Metropolitan Life Insurance Company she moved after five years to a training role at NYS Savings Bank Life Insurance Fund. She left as Training Director in 1982 and joined Dollar Dry Dock Saving Bank to support the start up of their Small Business sales team.

In 1984 she joined Citigroup as a Training Manager within Citibank. Every new hire is on-boarded at Citigroup with the phrase the “C” in Citigroup stands for change. Managing change is what Debby does. In 1985 she managed her first systems conversion to support an acquisition of National Permanent Bank by Citibank in Washington, D.C. Between 1989 and 1991 she let a conversion to national systems and supported the consolidation of operations nationally. She has been involved in numerous acquisition and integration efforts since. In 1990, she moved to a Service Quality Business Planning and Development role.

Assuming a National role in 1995 Debby supported an effort to increase capability and re-define Branch Banking through customer and people focus. At that time Citibank lead the industry in Customer Satisfaction and profitability. She moved back to Operations in 1996 as a Quality Operations Director. In 2000 she was appointed Citibank National Training Director and most recently she added U.S. responsibility for Quality and the Customer Experience.

In 2005 Chuck Prince, Chairman of Citigroup, launched Citigroup's "Five Point Plan". Debby Harrington was asked to lead one of the key initiatives to provide context, gain commitment and build momentum among the top 3,000 senior leaders. The “Five Point Plan” incorporates improvements in communications, performance management, talent inventory, training, and control. The outcomes have delivered an organization with higher standards, stronger ethical awareness and practices, and embedded shared values.

Debby is currently in the role of Customer Experience Director for Citibank, North America and is charged with actualizing the Citigroup change on a local level by building and implementing a customer focused strategy.

With focus on community and Financial Education Debby continues to outreach personally and professionally. Leukemia and Lymphoma Society and Boys Hope Girls Hope have acknowledged her for her work.